• TROPDISC: Gale Warnings

    From Mike Powell@1:2320/105 to All on Fri Jan 31 09:39:00 2025
    772
    AXNT20 KNHC 311046
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Fri Jan 31 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 1030 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: The pressure gradient between a ridge
    over the western Atlantic and the Colombian low is sustaining
    strong to gale force NE-E winds across the south-central
    Caribbean. Winds will diminish below gale-force late this morning.
    These winds will pulse to gale force each night and early morning
    offshore of Colombia through Tue night. Seas are forecast to
    build to around 14 ft with the strongest winds.

    Gulf of Mexico Gale Warning: A cold front will progress
    southeastward through the Gulf of Mexico today and on Sat. Winds
    will briefly reach gale force in the southwestern Gulf offshore
    of Veracruz this evening, with strong winds occurring through
    early Sat. Locally very rough seas will accompany these winds.

    Gale Warning E of 35W: Robust ridge in the far NE Atlantic forces
    strong to gale force N winds in the Meteo France marine zones of
    Agadir and Tarfaya. The forecast calls for North 8 in the
    Beaufort wind scale, with severe gusts, but mainly in the far E of
    the above mentioned marine zones. Mariners can expect rough to
    very rough seas in these waters. This forecast is valid until 01/0000 UTC.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic through the coast of
    Liberia near 06N10W and continues west-southwestward to 04N15W.
    The ITCZ extends from 04N15W to 01S46W. Scattered moderate
    convection is observed south of 05N and between 20W and 45W.

    ...GULF OF MEXICO...

    Please read the Special Features section for information regarding
    a Gale Warning in the southwestern Gulf of Mexico offshore of Veracruz.

    A cold front extends from SW Louisiana to 22N98W in northern
    Mexico. A few showers are seen ahead of the frontal boundary. The
    pressure gradient between lower pressures in Mexico and the
    subtropical ridge centered between Cape Hatteras and Bermuda
    result in fresh to locally strong southerly winds between 85W and
    93W. Seas in these waters are 5-7 ft, with the highest seas
    occurring north of Yucatan. Moderate to locally fresh SE winds and
    moderate seas are found in the Florida Straits. Elsewhere,
    moderate or weaker winds and slight to moderate seas are prevalent.

    For the forecast, moderate to locally fresh S to SE winds will
    occur across the central and eastern Gulf this morning as the
    pressure gradient strengthens between a cold front moving through
    the NW Gulf and building high pressure over the western Atlantic.
    Winds may pulse to strong speeds in the central Gulf. Winds will
    turn to the NW to NE behind the aforementioned cold front, with
    fresh to locally strong winds possible today as the front moves
    southeastward. Winds will briefly reach gale force in the
    southwestern Gulf offshore of Veracruz this evening, with strong
    winds occurring through early Sat. Locally very rough seas will
    accompany these winds. The front will stall then dissipate this
    weekend, and ridging will build over the basin, supporting gentle
    to moderate winds and slight to moderate seas across the Gulf this
    weekend into early next week.

    ...CARIBBEAN SEA...

    Please read the Special Features section for information regarding
    a Gale Warning near the coast of Colombia.

    Gale force winds are occurring offshore of Colombia with
    associated seas to 14 ft. Moderate to fresh E winds are noted
    across the basin, with strong winds occurring through the Gulf of
    Honduras, in the lee of Cuba, through the Windward Passage and
    downwind of Hispaniola. Moderate to rough seas are noted across
    the region, with the highest seas occurring in the south-central Caribbean.

    For the forecast, pulsing gale force winds will occur offshore of
    Colombia each night and morning through the middle of next week
    as a tight pressure gradient prevails between low pressure over
    Colombia and high pressure in the western Atlantic. Widespread
    moderate to fresh trades are expected across much of the
    Caribbean, with winds pulsing to strong speeds across the central
    basin, through the Windward Passage, downwind of Hispaniola and in
    the lee of Cuba. Rough seas will occur across the central and
    southwestern Caribbean, with localized very rough seas near the
    strongest winds. Elsewhere, residual E swell in the tropical
    Atlantic waters will combine with a new N swell this weekend,
    promoting locally rough seas east of the Windward and Leeward
    Islands and their passages into the Caribbean through the middle
    of next week. Moderate seas will prevail across the remainder of the basin.

    ...ATLANTIC OCEAN...

    A cold front is entering the northern forecast waters south of
    Bermuda and another front extending from 31N47W to 25N56W,
    followed by a surface trough to eastern Cuba. A few showers are
    noted near these boundaries. The rest of the SW North Atlantic,
    west of 55W, is dominated by a strong subtropical ridge centered
    between Cape Hatteras and Bermuda. Fresh to strong easterly trade
    winds are occurring south of 25N and west of 55W. The strongest
    winds are found at the entrance of the Windward Passage. Seas in
    the area described are 5-8 ft. Northerly swell is producing rough
    seas north of 28N and between 50W and 68W. Elsewhere west of 55W,
    moderate or weaker winds and moderate seas prevail.

    The rest of the tropical Atlantic is under the influence of a
    1036 mb high pressure system between the Azores and Madeira
    Islands. The tight pressure gradient between this ridge and lower
    pressures in NW Africa and deep tropics result in fresh to near
    gale-force N-NE winds south of a line from 31N29W to 20N50W and
    east of 50W. These winds are sustaining rough to very rough seas,
    with the highest seas occurring north of the Cabo Verde Islands
    and between the Canary Islands and Morocco. Moderate to fresh
    easterly winds and moderate to rough seas are evident south of 20N
    and between 50W and the Lesser Antilles. In the remainder of the
    basin, moderate or weaker winds and moderate seas are prevalent.

    For the forecast, building high pressure over the western
    Atlantic will support increasing moderate to fresh E to NE winds
    and building seas north of 20N today. A tightening pressure
    gradient between the aforementioned ridge and low pressure moving
    eastward through the United States will lead to fresh to strong S
    to SW winds offshore of Florida, generally north of 28N and west
    of 65W, this afternoon through Sat morning. Winds will diminish by
    Sat afternoon in this region as the low moves offshore and lifts
    to the northeast. Elsewhere, fresh to strong E winds and rough
    seas will continue south of 22N through the beginning of next
    week. Looking ahead, gentle to moderate winds and moderate seas
    are forecast for the waters north of 22N for Sun into early next week.

    $$
    ADAMS
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  • From Mike Powell@1:2320/105 to All on Sat Feb 15 09:13:00 2025
    672
    AXNT20 KNHC 151058
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Sat Feb 15 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 1030 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: Winds will pulse to gale force offshore
    of Colombia early this morning, and again tonight into early Sun
    as a strong pressure gradient prevails between high pressure in
    the western Atlantic and the Colombian low. Locally very rough
    seas are expected near and to the west of the gale force winds.
    Pulsing strong to near-gale force winds are expected each night
    and early morning into next week.

    SW Gulf of Mexico Gale Warning: A cold front will enter the
    northwestern Gulf of Mexico early on Sun, with strong N winds and
    rough seas occurring behind the front west of 90W as it moves
    southeastward. Gale force winds are expected offshore of Veracruz
    on Sun in the wake of the front. Winds will diminish from north to
    south by Mon morning.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic near 05N09W and extends to
    03N15W. The ITCZ continues from 03N15W to 02S36W. Scattered
    moderate convection is occurring south of 05N and east of 18W.

    ...GULF OF MEXICO...

    Please refer to the Special Features section for information
    regarding a Gale Warning in the southwestern Gulf of Mexico on Sun.

    A cold front extends from west-central Florida to 26N76W.
    Elsewhere, a 1016 mb low is located in southeastern Texas, and a
    trough extends toward the south through the central Bay of
    Campeche. Moderate to locally fresh SE winds are occurring across
    the eastern, central and northwestern Gulf of Mexico, with gentle
    to locally moderate winds in the southwestern basin, including the
    Bay of Campeche. Seas of 3 to 6 ft are noted across the basin.

    For the forecast, pulsing fresh to locally strong SE to E winds
    will prevail in the southern Gulf early this morning, offshore of
    the Yucatan Peninsula and northwestern Cuba. A warm front will
    lift northward through the northern basin today, and moderate to
    fresh SE to E winds are expected to develop across much of the
    basin, including through the Florida Straits. Locally strong S
    winds and rough seas will be possible in the northwestern Gulf
    offshore of Texas later this morning, with more widespread strong
    S to SW winds developing in the north-central Gulf late tonight
    into Sun. The next cold front will enter the northwestern Gulf of
    Mexico early on Sun, with strong N winds and rough seas occurring
    behind the front west of 90W as it moves southeastward. Gale
    force winds are expected offshore of Veracruz on Sun in the wake
    of the front. Winds will diminish from north to south by Mon
    morning, with transient high pressure expected over the basin
    through Tue. Looking ahead, another cold front will move into the
    northwestern Gulf of Mexico by the middle of next week.

    ...CARIBBEAN SEA...

    Please refer to the Special Features section for information
    regarding a Gale Warning in the south-central Caribbean offshore of Colombia.

    Pulsing gale force winds are occurring offshore of northwestern
    Colombia, with strong winds occurring through the central
    Caribbean, through the Windward Passage and across the Atlantic
    Passages into the eastern basin. Elsewhere, fresh trade winds
    prevail in the southwestern and eastern basin, with moderate winds
    in the northwestern basin. Rough seas cover much of the central
    and eastern Caribbean, with locally very rough seas to 13 ft
    occurring near the gales. Otherwise, moderate seas prevail in the
    northwestern Caribbean.

    For the forecast, winds will pulse to gale force offshore of
    Colombia early this morning, and again tonight into early Sun as a
    strong pressure gradient prevails between high pressure in the
    western Atlantic and the Colombian low. Locally very rough seas
    are expected near and to the west of the gale force winds.
    Widespread fresh trade winds and rough seas will occur across the
    central and eastern Caribbean through this weekend, with winds
    pulsing to strong speeds in the Gulf of Venezuela, through the
    Windward Passage, downwind of Hispaniola, in the lee of Cuba, in
    the Gulf of Honduras, and through the Atlantic Passages.
    Elsewhere, pulsing fresh NE winds are expected in the western
    basin. Looking ahead, a decreasing pressure gradient between the
    Colombian low and high pressure in the western and central
    Atlantic will support moderate to fresh trade winds and locally
    rough seas across the basin into early next week, with locally
    strong winds occurring offshore of Colombia.

    ...ATLANTIC OCEAN...

    A cold front extends from 31N55W southwestward into south Florida,
    and fresh to locally strong NE to E winds and rough seas are
    occurring north of the front. Elsewhere, a weakening cold front
    has been analyzed from 31N20W to 31N33W to 27N43W. Rough seas are
    occurring near this cold front, with very rough seas noted north
    of 28N and east of 39W. Farther south, moderate to fresh NE to E
    winds prevail south of 25N, with locally strong winds and rough
    seas occurring east of the Windward Islands from 12N to 18N west of 45W.

    For the forecast, a cold front extending from 31N55W to south
    Florida will progress southeastward this morning before stalling
    along 28N later today, and dissipate by Sun. Fresh to locally
    strong NE to E winds are expected north of the front this morning.
    Pulsing fresh to locally strong NE to E winds will also occur
    north of Hispaniola and Cuba and near the Bahamas into Sun. A
    long-period N swell associated with this cold front will produce
    rough seas north of 27N by late morning, and north of 23N by Sun
    morning. Very rough seas of 12 to 14 ft will be possible north of
    28N and east of 60W late tonight through Sun. Farther south, fresh
    trade winds and rough seas will prevail south of 23N through this
    weekend, with winds pulsing to strong speeds at times east of the
    Windward Islands. Moderate to locally fresh trade winds and rough
    seas will then occur in this region through at least the middle
    of next week. Elsewhere, winds will turn to the S and strengthen
    west of 70W off the coast of Florida by early Sun ahead of the
    next cold front forecast to move off the coast of the southeastern
    United States Sun night. This front will reach from Bermuda to
    the Florida Straits by Mon afternoon, then drift SE and weaken
    considerably through Tue.

    $$
    ADAMS
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  • From Mike Powell@1:2320/105 to All on Tue Mar 4 09:12:00 2025
    371
    AXNT20 KNHC 041058
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    Issued by NWS Ocean Prediction Center Washington DC
    1215 UTC Tue Mar 4 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 1030 UTC.

    ...SPECIAL FEATURES...

    Atlantic Gale Warning: Winds will turn to the SE and strengthen
    offshore of Florida today as a strong storm system moves through
    the central and eastern United States. Widespread strong to near-
    gale force S winds and rough seas will be possible north of 27N
    and west of 75W tonight through Wed ahead of a cold front
    associated with the storm system. The cold front is forecast to
    move off the southeastern coast of the US on Wed, and local gale
    force winds and very rough seas will be possible surrounding the
    front as it moves eastward through Thu. Large N swell will
    propagate southeastward through late week, producing widespread
    rough seas north of 25N through Thu, and north of 22N through Fri.

    Gulf of Mexico Gale Warning: Fresh to strong SE winds will occur
    in the central and western Gulf of Mexico today as a storm
    system strengthens in the central United States. A warm front will
    lift northward through the north-central Gulf this morning,
    promoting widespread fresh to strong S winds and rough seas for
    areas west of 85W. A strong pressure gradient associated with the
    storm system may support a period of gale force winds in the
    northeastern Gulf offshore of Alabama and Mississippi.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic near 05N09W and extends to
    01S22W. The ITCZ continues from 01S22W to 00N49W. Scattered
    moderate to isolated strong convection is observed south of 08N
    between 10W and 44W.

    GULF OF MEXICO...

    A 1027 mb high is centered offshore of Virginia, USA, and ridging
    extends southwestward into the Gulf of Mexico. Elsewhere, a 986
    mb low is strengthening over the Central High Plains. The
    tightening pressure gradient between these features is supporting
    moderate SE winds east of 87W including through the Florida
    Straits. West of 87W, fresh to strong SE winds prevail. Building
    seas of 8 to 9 ft are noted offshore of southeastern Texas, with
    moderate seas occurring through the central and western Gulf with
    the exception of the Bay of Campeche, where slight seas prevail.
    Seas of 2 to 4 ft are occurring in the eastern Gulf.

    For the forecast, fresh to strong SE winds will occur in the
    central and western Gulf of Mexico today as a storm system
    strengthens in the central United States. A warm front will lift
    northward through the north-central Gulf this morning, promoting
    widespread fresh to strong S winds and rough seas for areas west
    of 85W. A strong pressure gradient associated with the storm
    system may support a period of near-gale force winds in the
    northeastern Gulf offshore of Alabama and Mississippi. A cold
    front is forecast to enter the northwestern basin later today,
    with fresh to locally strong N to NW winds expected behind the
    front, mainly offshore of the US Gulf coast, and offshore of
    Veracruz. Fresh to strong NW winds will prevail east of 92W and
    north of 25W Wed into Thu as the cold front moves southeastward
    through the basin. Looking ahead, high pressure building over the
    central United States late this week will support moderate to
    locally fresh E to SE winds across the basin.

    CARIBBEAN SEA...

    A cold front extends from the central Atlantic southwestward into
    northwestern Hispaniola and to 11N76W. Locally fresh NE winds are
    occurring in the wake of the front through the Windward Passage
    and in the lee of Cuba. Farther south, low pressure over
    northwestern Colombia is maintaining locally fresh E winds in the
    Gulf of Venezuela, with fresh to strong winds offshore of
    northwestern Colombia. Seas of 2 to 4 ft prevail through much of
    the basin, with seas of 4 to 7 ft noted in the area of fresh winds
    offshore of Colombia.

    For the forecast, prevailing low pressure over northwestern
    Colombia will lead to pulsing fresh to locally strong NE to E
    winds through the Gulf of Venezuela and offshore of Colombia this
    week, with the strongest winds occurring each night and morning.
    Moderate to fresh NE winds are expected through early Wed across
    the Windward Passage and downwind of Cuba as the pressure gradient
    strengthens between a cold front in the central Atlantic, high
    pressure offshore of the eastern United States, and the Colombian
    low. Fresh to locally strong SE winds will be possible this
    evening into Wed in the Gulf of Honduras. Otherwise, moderate
    trade winds and slight to moderate seas are expected across the
    central and eastern Caribbean this week.

    ATLANTIC OCEAN...

    Surface ridging continues to build over the SW N Atlantic waters
    in the wake of a cold front that at 0600 UTC extends from 31N53W
    to 20N73W to just east of Jamaica. Fresh to locally strong NE
    winds are occurring north and west of the front north of 23N.
    Rough seas in the 8-10 ft range associated with this front are
    affecting the Bahamas offshore waters.

    The remainder of the tropical and subtropical Atlantic is under
    the influence of a 1027 mb high pressure system centered SW of the
    Azores. The modest pressure gradient is forcing moderate to fresh
    E winds in the trade waters region of the central Atlantic,
    especially west of 28W. Seas in these waters are 8 to 10 ft. Over
    the eastern subtropical waters, fresh N to NE winds prevail W of
    the Canary Islands to about 31W, supporting rough seas in the 8 to
    10 ft range, highest N of 25N.

    For the forecast W of 55W, moderate to fresh N to NE winds and
    rough seas will occur north of 20N through midweek as a strong
    pressure gradient prevails between a cold front in the central
    Atlantic and high pressure just offshore of the eastern United
    States. Strong NE winds will be possible through the Bahamas and
    west of 65W this morning, with strong winds expanding farther east
    to 55W this afternoon into Wed. Elsewhere, winds will turn to the
    SE and strengthen offshore of Florida today as a strong storm
    system moves through the central and eastern United States.
    Widespread strong to near-gale force S winds and rough seas will
    be possible north of 27N and west of 75W tonight through Wed ahead
    of a cold front associated with the storm system. The cold front
    is forecast to move off the southeastern coast of the US on Wed,
    and local gale force winds and very rough seas will be possible
    surrounding the front as it moves eastward through Thu. Large N
    swell will propagate southeastward through late week, producing
    widespread rough seas north of 25N through Thu, and north of 22N
    through Fri. Otherwise, moderate to fresh trades and rough seas
    will prevail south of 25N this week.

    $$
    ADAMS
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  • From Mike Powell@1:2320/105 to All on Mon Mar 17 08:31:00 2025
    829
    AXNT20 KNHC 171000
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Mon Mar 17 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 0930 UTC.

    ...SPECIAL FEATURE...

    Central Atlantic Gale Warning: A 1011 mb low pressure is analyzed
    near 24N54W. Recent satellite derived wind data indicate gale
    force winds in the northern semicircle of the low, particularly
    from 25N to 29N between 50W and 55W. These winds are within a
    larger area of fresh to strong easterly winds that covers roughly
    the waters from 22N to 31N between 41W and 62W. These winds are
    the result of the pressure gradient between the low pressure and
    strong high pressure located N of the low. Gale conditions will
    likely last through tonight, then diminish to fresh to strong
    winds through Tue morning. This pattern will also support rough to
    very rough seas east of 70W through mid week. The low will move
    toward the NW over the next 24 hours, then northward through mid-
    week while weakening.

    W Atlantic Gale Warning: An occluded low is expected to develop in
    the vicinity of a cold front by midweek. The front is already
    moving across the W Atlantic, analyzed from 31N79W to 28N81W. Gale
    conditions will begin on Tue night near 29N71W, then drift E
    through Wed as the system moves E. Rough to very rough seas will
    prevail with these winds.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic through the Liberia/Sierra
    Leone border near 07N12W and continues southwestward to 03N16W.
    The ITCZ extends from 03N16W to 01S30W to the coast of NE Brazil
    near 02.5S42W. Scattered moderate convection is noted within 300
    nm on either side of the boundaries.

    ...GULF OF MEXICO...

    A cold front extends from 26N82W to 21N87W. Scattered moderate
    convection is noted ahead of the front, affecting the Yucatan
    Channel. This convective activity is also reaching the Yucatan
    Channel. High pressure of 1025 mb centered over the NW Gulf
    follows the front. Fresh to strong northwest to north winds and
    moderate to rough seas are noted in the wake of the front while
    gentle to moderate SW winds are moderate seas are occurring ahead
    of the front. Winds and seas could be higher near tstms.

    For the forecast, the front will continue to move southeast and
    away from the area this morning. Fresh to strong northerly winds
    behind the front will prevail though tonight. Looking ahead, high
    pressure will settle over the basin through mid week. As the high
    pressure moves toward N Florida, fresh to strong southerly return
    flow will set-up over the NW Gulf tonight into Tue. Looking ahead,
    the next cold front is expected to enter the Gulf region by mid week.

    ...CARIBBEAN SEA...

    A surface ridge extends across the Bahamas and Cuba into the NW
    Caribbean while a cold front is moving across the SE Gulf of
    Mexico and the Yucatan Peninsula. This pattern is allowing for
    fresh to strong trade winds over the south-central Caribbean and
    gentle to moderate winds elsewhere. Seas are 5 to 7 ft over the NW
    Caribbean and near the coast of Colombia, and 3 to 5 ft
    elsewhere. Scattered moderate convection prevails in the Yucatan
    Channel ahead of a cold front.

    For the forecast, the cold front will enter the NW Caribbean this
    morning. Fresh to strong northerly winds and rough seas will
    follow the front, which is forecast to reach from eastern Cuba to
    the Gulf of Honduras by tonight, and from the Windward Passage to
    near Cabo Gracias a Dios, Nicaragua on Tue before dissipating Tue
    night into Wed. Moderate to fresh N to NE winds will prevail
    across the NW Carribbean through mid week. In addition, NE fresh
    to strong winds will pulse across southern Cuba, the Windward
    Passage, and south of Haiti through the same period due to a
    developing low pressure north of the area. Seas in this area will
    range from 4 to 8 ft. High pressure over the central north
    Atlantic combined with the Colombian low will support pulsing
    winds to fresh to strong speeds at night offshore Colombia
    throughout the forecast period.

    ...ATLANTIC OCEAN...

    A Gale Warning is in effect for the central Atlantic associated
    with a strengthening low pressure. Another Gale Warning will
    develop in the W Atlantic by midweek in the vicinity of an
    occluded low. Refer to the Special Features section for more details.

    Aside from the gale areas, high pressure ridge extends across the
    remainder of the Atlantic forecast waters. A cold front reaches
    the Canary Islands followed by moderate to fresh winds and 8 to 15
    ft seas in NW swell, east of 35W. Moderate to fresh trade winds
    dominate the tropical Atlantic with seas of 5 to 8 ft.

    For the forecast west of 55W, as the above mentioned low moves
    NW over the next 24 hours, gale-force winds east of 55W will
    prevail through tonight. Winds will then diminishing to fresh to
    strong through Tue morning. This pattern will also support rough
    to very rough seas east of 70W through mid week. Farther west, a
    strong cold front has pushed off the SE United States coast, with
    fresh to near-gale force winds and rough seas in its vicinity. The
    front will reach from 31N68W to the Turks and Caicos and eastern
    Cuba Tue morning, and from Bermuda to Puerto Rico Wed morning. By
    mid week, a low pressure system may develop along this front
    supporting near-gale to gale force winds and very rough seas
    between Bermuda and the Bahamas.

    $$
    ERA
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  • From Mike Powell@1:2320/105 to All on Wed Mar 19 08:29:00 2025
    568
    AXNT20 KNHC 191039
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Wed Mar 19 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 1025 UTC.

    ...SPECIAL FEATURES...

    Atlantic Gale Warning: Complex low pressure system near Bermuda is
    producing gale force N to NW winds north of 27N between 69W and
    74W, along the western side of the low's circulation. Building
    seas of 18-22 ft are within the area of gale force winds. Strong
    to near gale force cyclonic winds and rough to very rough seas are
    found over much of the SW North Atlantic. This area of low
    pressure will continue moving south to southeast today, supporting
    gale-force winds and very rough seas between Bermuda and the
    Bahamas through tonight. Peak seas are forecast to reach 23 ft
    later this morning, with the area of 12 ft or greater seas
    expanding to cover much of the western Atlantic offshore zones
    north of 20N. Winds and seas will gradually diminish across the
    region beginning Thu night as the low shifts northeastward and
    steadily weakens.

    Gulf of Mexico Gale Warning: A cold front is forecast to move off
    the Texas coast later this morning and quickly proceed eastward.
    Strong to near gale-force N winds will follow the front, except
    for gale-force NW-N winds off Veracruz Thu afternoon. Seas will
    build to 9 ft. Winds and seas will diminish Thu night.

    ...MONSOON TROUGH/ITCZ...

    A monsoon trough enters the Atlantic through the coast of Guinea-
    Bissau near 11N15W, continuing southwestward to 02N30W. The ITCZ
    extends from 02N30W to near the far northern coast of Brazil near
    01N50W. Scattered moderate to isolated strong convection is
    observed south of 05N.

    GULF OF MEXICO...

    Please read the Special Features section for information about the
    Gale Warning off Veracruz.

    A tight pressure gradient between high pressure over Florida and
    lower pressures over Texas and NE Mexico support fresh to strong
    southerly winds over much of the western Gulf of Mexico. Seas in
    these waters are 6-10 ft. Elsewhere, moderate or weaker winds and
    slight to moderate seas are prevalent.

    For the forecast, fresh to strong southerly winds and rough seas
    will continue through this morning across the western Gulf waters
    due to a tight pressure gradient. A cold front will move off the
    coast of Texas later this morning and travel quickly eastward. The
    front will reach from southern Alabama to Veracruz tonight, from
    Cape Coral to the Yucatan Peninsula Thu afternoon, and exit the
    basin Thu night into early Fri. The front will be followed by
    fresh to strong N winds and rough seas, except for minimal gales
    off Veracruz Thu afternoon. Winds and seas will diminish across
    the basin on Fri morning with high pressure establishing across
    the basin afterward. Fresh to strong E winds will develop off NW
    Yucatan and spread into the western Gulf waters Sat night into Sun morning.

    CARIBBEAN SEA...

    High pressure over Florida supports fresh to strong northerly
    winds in the lee of Cuba, Windward Passage and off the Tiburon
    Peninsula of Haiti. Seas in these waters are 3-6 ft. Fresh to
    strong NE winds and moderate seas are noted off NW Colombia in the south-central Caribbean. Moderate or weaker winds and slight to
    moderate seas are evident in the rest of the basin.

    For the forecast, fresh to strong easterly trade winds will
    prevail through early next week in the central Caribbean. Building
    ridge north of the area will result in an increase in areal
    coverage of the winds Fri through the early next week. Gale-force
    winds will pulse offshore Colombia at night on Sat and Sun, along
    with rough to very rough seas. Fresh to near gale-force winds will
    prevail in the central and portions of the SW Caribbean during
    the weekend and through early next week. The aforementioned ridge
    will also sustain fresh to strong NE winds in the lee of Cuba and
    the Windward Passage through tonight. Looking ahead, the tail of a
    cold front will enter the NW Caribbean early Fri and dissipate Fri evening.

    ATLANTIC OCEAN...

    Please read the Special Features section for information about the
    Atlantic Gale Warning in the SW North Atlantic.

    Outside of the Gale Warning area, seas 8 ft or greater are north
    of 20N between 46W and 80W. A cold front, associated in part with
    the gale force low, extends from 31N62W to 25N61W to 19N19W along
    the north coast of Hispaniola. Fresh to strong SW to S winds
    prevail to 43W and north of 22N. Weak 1007 mb low pressure
    analyzed near 30N57W should be absorbed by the gale force low
    pressure this morning.

    The rest of the tropical Atlantic is dominated by a broad
    subtropical ridge. The pressure gradient between this ridge and
    lower pressures north of the area result in fresh to strong
    cyclonic winds and rough seas north of 27N and east of 35W.
    Moderate to fresh NE-E winds and moderate to rough seas prevail
    south of 22N between Africa and the Lesser Antilles. Elsewhere,
    moderate or weaker winds and moderate seas are prevalent.

    For the forecast west of 55W, complex low pressure system located
    near Bermuda supports strong to gale-force W-NW winds and rough
    to very rough seas across the SW North Atlantic waters. The
    strongest winds and highest seas are found north of 27N and
    between 69W and 74W. The broad non-tropical system is forecast to
    make a counter-clockwise loop and turn north on Thu, moving away
    from our area. The strong to gale-force winds and rough to very
    rough seas will continue through tonight, then gradually diminish
    through Fri as the winds and seas slide eastward. Looking ahead,
    fresh to strong southerly winds will develop over the NE Florida
    offshore waters on Thu afternoon ahead of a strong cold front
    forecast to enter the NW offshore waters late Thu. Strong to near
    gale-force W-NW winds and rough to very rough seas will follow
    this front, which is forecast to reach from Bermuda to the central
    Bahamas late Fri. The front will move E of the area on Sat,
    allowing high pressure to build in and winds and seas to diminish.

    $$
    Delgado
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  • From Mike Powell@1:2320/105 to All on Thu Mar 20 08:27:00 2025
    973
    AXNT20 KNHC 201029
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Thu Mar 20 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 1025 UTC.

    ...SPECIAL FEATURES...

    Atlantic Gale Warning: A weakening, broad area of low pressure
    centered near Bermuda continues to produce strong to gale-force
    cyclonic winds over much of the SW North Atlantic, especially
    between 55W and 75W. These winds result in rough to very rough
    seas, peaking near 17 ft. A cold front is analyzed from 31N54W to
    17N62W. Scattered moderate convection is observed north of 20N and
    between 49W and 60W. Winds and seas will gradually diminish as
    the system lifts N of the area later today.

    Gulf of Mexico Gale Warning: A fast-moving cold front extends
    from SE Louisiana to near Tuxpan, Mexico. Marine observations
    indicate that fresh to near gale-force northerly winds are
    occurring behind the front. Gusts may occasionally reach gale
    force early this morning. The front is forecast to reach from
    Tampa, Florida to Veracruz, Mexico this afternoon. Brief minimal
    gales are expected off Veracruz with the passage of the front this
    afternoon. Rough to very rough seas are expected the strongest
    winds. Winds and seas will diminish in the SW Gulf tonight into Fri morning.

    SW Caribbean Gale Warning: The pressure gradient between a ridge
    north of the Caribbean and lower pressures in N Colombia will
    tighten leading to the development of pulsing gales at night over
    the offshore waters N of Colombia from Fri through Sun. Rough to
    very rough seas are expected with the strongest winds. Winds and
    seas will diminish by the middle of next week.

    ...MONSOON TROUGH/ITCZ...

    A monsoon trough enters the Atlantic through the coast of Guinea-
    Bissau near 12N16W, continuing southwestward to 04N23W. The ITCZ
    extends from 04N23W to 02S43W. Isolated showers are observed
    within 120 nm on both sides of the monsoon trough and ITCZ.

    GULF OF MEXICO...

    Please read the Special Features section for information about the
    Gale Warning expected off Veracruz.

    A cold front extends from SE Louisiana to near Tuxpan, Mexico. A
    few showers are noted near the frontal boundary. Recent marine
    observations indicate that strong to near gale- force NW-N winds
    follow the frontal boundary, especially in the NW Gulf waters.
    Gusts may occasionally reach gale force this morning. Seas behind
    the frontal boundary are 7-10 ft. Fresh to strong NW winds and
    moderate seas are occurring off Veracruz. In the remainder of the
    basin, moderate or weaker winds and slight to moderate seas prevail.

    For the forecast, the front is forecast to reach from Tampa,
    Florida to Veracruz, Mexico Thu afternoon before it moves E of the
    basin early on Fri. Brief minimal gales are expected off Veracruz
    with the passage of the front Thu afternoon. Very rough seas are
    expected the strongest winds. Winds and seas will diminish across
    the basin Fri morning through Sat night as high pressure develops
    over the NE Gulf. A surface trough over the Yucatan Peninsula will
    move into the Bay of Campeche at night Fri through Sun, enhancing
    winds to fresh to strong speeds in the Peninsula adjacent waters.
    Looking ahead, the next cold front will come off Texas Sun night into Mon.

    CARIBBEAN SEA...

    Refer to the section above for details on the Gale Warning
    expected over the waters off NW Colombia.

    A stationary front extends from the Leeward Islands to just north
    of the ABC islands. A few weak showers are seen near the boundary.
    The rest of the basin is dominated by a 1018 mb high pressure
    system centered near the NW Bahamas. Fresh to strong NE winds and
    moderate seas are occurring in the south-central Caribbean due to
    the pressure gradient between the aforementioned ridge and lower
    pressures in northern Colombia. Moderate to fresh easterly winds
    and moderate seas are found in the north-central and SE Caribbean,
    Windward Passage, lee of Cuba and Gulf of Honduras. Elsewhere,
    light to gentle winds and slight seas are prevalent.

    For the forecast, building ridge north of the area will sustain fresh
    to strong easterly trade winds over the central Caribbean through
    the forecast period. The pressure gradient between the aforementioned
    ridge and lower pressureS over N Colombia will result in near
    gale-force winds across the south-central waters Fri night through
    Mon night, with pulsing gales at night offshore Colombia Fri
    through Sun. Rough to very rough seas are expected with the
    strongest winds Fri night through the middle of next week. Looking
    ahead, the tail of a cold front will enter the NW Caribbean early
    Fri and dissipate Fri evening. The aforementioned building high
    pressure will result in fresh to strong NE winds resuming in the
    Windward Passage and the lee of Cuba Fri evening through Sun
    night, and east winds of the same speed at night in the Gulf of
    Honduras Sun and Mon.

    ATLANTIC OCEAN...

    Please read the Special Features section for information about the
    Atlantic Gale Warning in the W Atlantic.

    The SW North Atlantic is dominated by the expansive low pressure
    system discussed in the Special Features, especially east of 75W.
    West of 75W, moderate or weaker winds and moderate seas are noted.
    The remainder of the basin is under the influence of a narrow
    ridge centered well west of the Azores. The pressure gradient
    between this ridge and a strong low pressure east of Portugal
    result in moderate to locally strong W-NW winds north of 26N and
    east of 30W. Seas in these waters are 10-14 ft. Moderate to fresh
    easterly trade winds and seas of 6-9 ft are found south of 21N and
    between Africa and the Lesser Antilles. Elsewhere, moderate or
    weaker winds and moderate seas are evident.

    For the forecast west of 55W, a weakening, broad area of low
    pressure centered near Bermuda continues to produce strong to
    gale-force cyclonic winds over much of the SW North Atlantic,
    especially between 55W and 75W. These winds result in rough to
    very rough seas. Winds and seas will gradually diminish as the
    system lifts N of the area later today. Meanwhile, a cold front
    currently moving across the Gulf of Mexico will sustain fresh to
    strong southerly winds in the NE Florida offshore waters this
    afternoon. The strong front will enter the basin this evening and
    strong to near gale-force NW winds and rough to very rough seas
    will follow. The front is which is forecast to reach from 31N71W
    to Andros Island and W Cuba Fri morning, and from 31N57W to the
    southern Bahamas Sat morning where it stall before dissipating
    late Sat. High pressure will build NE to E of the Bahamas in the
    wake of the front the remainder weekend. Looking ahead, a weak
    cold front may enter the NW offshore waters Mon night.

    $$
    Delgado
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  • From Mike Powell@1:2320/105 to All on Mon Mar 24 07:49:00 2025
    631
    AXNT20 KNHC 240830
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Mon Mar 24 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 0830 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: The pressure gradient between an Atlantic
    high pressure ridge and the Colombian low is supporting strong to
    gale force winds off the coast of Colombia, where seas are
    peaking near 14 ft. Winds and seas will diminish today. Another
    pulse of gale force winds are expected offshore of Colombia
    tonight, with seas building to 13 ft late tonight in the area of
    strongest winds. Winds will diminish below gale force Tuesday
    morning, with strong to near gale force winds then pulsing off
    Colombia through at least midweek.

    Gale Warning E of 35W: the pressure gradient between high pressure
    located near the Azores and lower pressures in NW Africa supports
    near gale force NE to N winds in the Agadir marine zone of Meteo-
    France. Winds over these waters are forecast to increase to gale-
    force today as the high shifts eastward. Seas are expected to
    increase to 10 to 13 ft during this period.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough reaches the Atlantic near 08N12W and continues
    southward to 01N29W. The ITCZ extends from 01N29W to coastal
    Brazil near 02S40W. Scattered clusters of moderate to strong
    convection are noted from the equator to 06N between 08W and 23W.

    ...GULF OF MEXICO...

    A surface trough is over the SW Gulf just west of the Yucatan
    peninsula. High pressure prevails over the northern Gulf. The
    pressure gradient between these features is supporting fresh to
    locally strong winds NW of the Yucatan peninsula. Seas of 4-5 ft
    are noted over these waters. Over the NE Gulf, Light winds and
    seas of 2 ft or less prevail. Gentle to moderate winds, and seas
    of 2-4 ft are elsewhere.

    For the forecast, high pressure will prevail over the Gulf,
    supporting moderate to locally fresh S to SE winds over the
    western and central Gulf, and gentle to moderate winds in the
    eastern basin into mid-week. A surface trough will develop over
    the Yucatan Peninsula and move into the Bay of Campeche nightly
    through early this week, supporting pulses of fresh to locally
    strong winds over adjacent waters. The next cold front will skirt
    the NE Gulf with little impact tonight into Tue. High pressure
    building into the basin in its wake will lead to moderate to fresh
    SE winds and building seas across the NW Gulf by Thu.

    ...CARIBBEAN SEA...

    A Gale Warning is in effect offshore Colombia. Please, refer to
    the Special Features section above for more information.

    Aside from the area of gale force winds off Colombia, fresh to
    near gale winds, and seas of 8-12 ft, are over the Central
    Caribbean. Fresh to strong winds, and seas of 6-7 ft are over the
    Gulf of Honduras. Moderate to fresh winds, and seas of 4-7 ft,
    prevail elsewhere.

    For the forecast, fresh to strong E to NE winds offshore of
    Colombia and Venezuela will pulse to gale force offshore of
    Colombia tonight, with nightly pulses to near gale likely through
    at least mid-week. Fresh to occasionally strong NE winds will
    pulse in the Windward Passage tonight. Fresh to strong SE winds
    will extend across the Gulf of Honduras into mid- week.

    ...ATLANTIC OCEAN...

    A Gale Warning is in effect for the Agadir marine zone of Meteo-
    France.. Please, refer to the Special Features section above for
    more information.

    A surface trough extends from 31N48W to 22N56W. Light to gentle
    winds, with seas of 7 to locally 8 ft are in the vicinity of the
    trough. High pressure dominates the remainder of the Atlantic
    discussion waters. Light to gentle winds, and seas of 2-5 ft, are
    W of the trough. Moderate to fresh winds, and seas of 6-8 ft,
    cover the remainder of the discussion waters.

    For the forecast west of 55W, high pressure over the western
    Atlantic will support gentle breezes and slight to moderate seas
    north of 22N early this week. The area of high pressure will shift
    eastward today enabling a weak cold front to move off the
    northeast Florida coast tonight. Fresh to locally strong winds are
    likely to pulse off the northern coast of Hispaniola into mid
    week. Another cold front may move into waters between northeast
    Florida and Bermuda Wed.

    $$
    AL
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  • From Mike Powell@1:2320/105 to All on Fri Apr 4 11:10:00 2025
    011
    AXNT20 KNHC 040905
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Fri Apr 4 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 0900 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: The pressure gradient between strong high
    pressure of 1032 mb located north of the near Bermuda and the
    Colombian Low will continue to support fresh to near gale trades
    across the Caribbean through Sat afternoon. The winds should reach
    gale force overnight just north of Colombia, with seas building
    to 13 or 14 ft.

    Central Atlantic Gale Warning: A cold front moving across the
    north- central Atlantic will move into the discussion waters south
    of 31N late Sat and reach from 31N40W to 29N55W by Sat evening.
    SW winds to gale force are likely within 90 nm ahead of the front
    north of 28N. Winds will diminish to below gale force by Sun
    morning as the front shifts southward. Looking ahead, even though
    the winds may gradually diminish, the front will be followed by
    large to very large NW swell that will envelop most of the
    Atlantic east of 60W through the middle of next week.

    Eastern Atlantic Gale Warning: A Gale Warning issued by Meteo-
    France remains in effect for the marine zone of Madeira through
    05/00Z. The forecast calls for westerly winds at times 8 force of
    the Beaufort Wind Scale. Very rough seas are expected within
    these winds. These marine conditions are associated with a 990 mb
    low pressure off Portugal. For more details, refer to the Meteo-
    France High Seas Forecast listed on their website: https://wwmiws.wmo.int/index.php/metareas/display/2 .

    ...MONSOON TROUGH/INTERTROPICAL CONVERGENCE ZONE...

    The monsoon trough enters the Atlantic Ocean through the coast of
    Liberia near 05N09W and extends southwestward to 03N12W. The ITCZ
    continues from 03N12W to the coast of NE Brazil near 02S42W.
    Scattered moderate convection is active from 01N to 06N between
    15W and 20W.

    ...GULF OF MEXICO...

    Fresh to strong SE winds are noted across the basin between high
    pressure over the western Atlantic and 1000 mb low pressure over
    west Texas. Seas are 7 to 10 ft over the western Gulf, and 5 to 7
    ft over the eastern Gulf except for up to 8 ft in the Straits of
    Florida. No significant showers or thunderstorms are evident at
    this time. However, platform observations are showing visibility
    as low as 1 1/2 miles in sea fog across the northern Gulf.

    For the forecast, a strong pressure gradient between the Bermuda
    High and low pressure over N Mexico/Texas will continue forcing
    fresh to near gale SE winds across the basin through Sat
    afternoon. The moist SE flow may allow areas of sea fog to persist
    across the northern Gulf into Sat. A strong late- season cold
    front will emerge off of the Texas coast Sat evening. Fresh to
    near gale N winds and rapidly building seas will follow the front
    over the western Gulf Sun and Mon with northerly gales possible
    near Tampico on Sun morning, and off Veracruz by late Sun
    afternoon. The cold front will extend from the Florida panhandle
    to the eastern Bay of Campeche Mon followed by fresh to strong N
    winds. Looking ahead, the front will weaken as it moves southeast
    of the area Tue followed by weak high pressure over the northern
    Gulf. Winds and seas will diminish accordingly through Tue night
    in all but the far southeast Gulf where fresh winds and rough seas
    may persist.

    ...CARIBBEAN SEA...

    A Gale Warning is in effect near the coast of Colombia. Please refer
    to the Special Features section for more details.

    Recent scatterometer satellite data confirms fresh to strong
    trade winds across much of the basin, with winds near gale force
    occurring in the central Caribbean and also offshore NW Colombia.
    Concurrent altimeter satellite data shows seas are 8 to 12 ft
    over the central and eastern Caribbean. Strong to near-gale force
    winds are also observed across the Gulf of Honduras, and extend as
    far north as the southern coast of Quintana Roo. Seas are likely 7
    to 9 ft in this area. Moderate seas dominate the remainder of the
    basin. Shallow moisture embedded in the trade wind flow is moving
    westward across the region producing isolated passing showers
    primarily into the Leeward and Windward Islands.

    For the forecast, the strong pressure gradient from the Bermuda High to
    the Colombian Low will continue to produce fresh to near-gale
    force trade winds across the Caribbean through Sat afternoon.
    From Sat night through early next week, the Bermuda High weakens
    contributing toward reduced winds over the basin. However, strong
    trades will still continue north of Colombia, south of Hispaniola,
    and over the Gulf of Honduras on Sun and Sun night. Rough to very
    rough seas will accompany the winds. By Mon and Tue as the
    weakened Bermuda High shifts eastward, trades across the Caribbean
    will be reduced to only moderate to fresh. Looking ahead, a cold
    front may reach the northwest Caribbean Tue with winds shifting
    from southeasterly to northerly.

    ...ATLANTIC OCEAN...

    A Gale Warning is in effect E of 35W in the Meteo-France forecast
    region. Please refer to the Special Features section for more details.

    A cold front enters the Atlantic forecast waters at 31N38W and
    continues to 27N50W and on to 27N63W. Fresh N to NE winds and 6
    to 8 ft follow the front. The subtropical ridge is anchored by
    1030 mb high pressure east of Bermuda near 24N60W. This pattern is
    supporting fresh to strong E to SE winds and 7 to 10 ft seas south
    of 25N and west of 45W, with near-gale force winds pulsing off the
    northern coast of Hispaniola and near the northern approaches to
    the Windward Passage. Mostly moderate winds and seas are noted
    elsewhere west of 35W. Farther east, another cold front moving
    into Morocco extends into the eastern Atlantic from 25N15W to
    25N30W. Gentle to moderate breezes follow the front and dominate
    east of 35W, but with N swell of 7 to 11 ft north of 15N and east
    of 35W, and 5 to 7 ft farther south.

    For the forecast west of 55W, the strong Bermuda High will
    continue to force fresh to strong trades south of 25N through
    tonight. As the Bermuda High weakens on Sat through early next
    week, fresh to strong trades will be restricted to near the SE
    Bahamas and the Windward Passage. Beginning Sat night, a large N
    swell will start impacting the waters east of 60W and will subside
    through late Tue. Fresh to locally strong S winds will develop
    off the coast of northeast Florida Sun night and Mon ahead of a
    cold front moving through the southeastern United States. The cold
    front is forecast to move off of the coast Mon night, and reach
    from Bermuda to eastern Cuba by mid week, followed by fresh to
    strong NE winds and moderate to rough seas.

    $$
    Christensen
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  • From Mike Powell@1:2320/105 to All on Sat Apr 5 08:39:00 2025
    485
    AXNT20 KNHC 050906
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Sat Apr 5 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 0600 UTC.

    ...SPECIAL FEATURES...

    Central Atlantic Gale Warning: A cold front/frontal trough moving
    across the north-central Atlantic will move into the discussion
    waters south of 31N today and reach from 31N44W to 29N52W by this
    evening. SW winds to gale-force are expected within around 90 nm
    ahead of the front north of 28N. Winds will diminish below gale-
    force Sun morning as the front shifts southeastward. Meanwhile, a
    related large N swell will start impacting the waters east of 62W
    tonight and will subside by mid-week. This swell will produce seas
    12 to around 20 ft south of 31N from Sat night through Mon, then
    gradually subside afterward. Seas of 12 ft or greater will reach
    to 18N Mon night.

    Caribbean Gale Warning: The pressure gradient between a strong
    1026 mb high pressure located SW of Bermuda and a 1008 mb
    Colombian Low will continue to support strong to near-gale trade
    winds across the south-central Caribbean through Sat night. Winds
    offshore of northwestern Colombia are expected to remain at or
    near gale-force until around sunrise today, and will peak back at
    gale-force again tonight with seas reaching 12 to 14 ft under the
    strongest winds.

    Gulf of Mexico Gale Warning: A strong late-season cold front
    will emerge off of the Texas coast tonight. Fresh to near-gale N
    winds and rapidly building seas will follow the front over the
    western Gulf Sun and Mon, with northerly gales forecast near
    Tampico on Sun morning, and off Veracruz Sun afternoon. The cold
    front will extend from the Florida panhandle to the eastern Bay of
    Campeche Mon followed by fresh to strong N winds.

    ...MONSOON TROUGH/INTERTROPICAL CONVERGENCE ZONE...

    A monsoon trough enters the Atlantic Ocean through the coast of
    Sierra Leone near 07N12W, then extends southwestward to 04N17W.
    An ITCZ continues from 04N17W to the NE coast of Brazil near
    00.5S47W. Widely scattered moderate convection is observed from
    the Equator to 04.5N between 24.5W and 30W, and from the Equator
    to 04N between 44W and the coast of Brazil.

    ...GULF OF MEXICO...

    A Gale Warning is in effect for the western Gulf of Mexico.
    Please refer to the Special Features section for more details.

    Fresh to strong SE winds continue across most of the Gulf early
    this morning, between high pressure over the western Atlantic
    near Bermuda and 1003 mb low pressure over NE Mexico. This
    sustained return flow is producing seas of 8 ft and higher across
    most of the waters W of 87W and N of 21N, with peak seas of 10-11
    ft. Seas are 5 to 8 ft over the remainder of the basin, except to
    9 ft in the Straits of Florida. Scattered showers are occurring
    over the NW Gulf due to convergent surface winds in the area.
    Recent satellite imagery also indicates the development of sea fog
    within roughly 60 nm of the TX and LA coasts, with low visibility
    being a potential hazard in these areas.

    For the forecast, a strong pressure gradient between the Bermuda
    High and low pressure over south-central U.S. will continue
    forcing fresh to near-gale SE winds across the basin today. The
    moist SE flow may allow areas of sea fog to persist across the
    northern Gulf into this morning. A strong late-season cold front
    will emerge off of the Texas coast tonight. Fresh to near gale N
    winds and rapidly building seas will follow the front over the
    western Gulf Sun and Mon, with northerly gales forecast near
    Tampico on Sun morning, and off Veracruz Sun afternoon. The cold
    front will extend from the Florida panhandle to the eastern Bay of
    Campeche Mon followed by fresh to strong N winds. The front will
    weaken as it moves southeast of the area Tue followed by weak high
    pressure over the northern Gulf. Winds and seas will diminish
    accordingly through Tue night in all but the far southeast Gulf
    where fresh winds and rough seas may persist.

    ...CARIBBEAN SEA...

    A Gale Warning is in effect for the waters near the coast of
    Colombia. Please refer to the Special Features section for more details.

    Gale-force winds off the northern coast of Colombia persist early
    this morning due to a tight pressure gradient between high
    pressure north of the area and the Colombian low. The remainder of
    the basin is dominated by fresh to strong trades, including the
    northern Caribbean passages, except near gale-force in the Gulf of
    Honduras. Seas are 6 to 10 ft across the majority of the basin,
    with localized seas up to 12 to 14 ft offshore of northern
    Colombia Colombia.

    For the forecast, a strong pressure gradient from the Bermuda
    High to the Colombian Low will continue to produce gale-force
    winds N of Colombia until around sunrise, with another round
    forecast tonight. Rough to very rough seas will accompany these
    winds. Fresh to near-gale trades will prevail across most of the
    remainder of the basin, including Atlantic passages and the Gulf
    of Honduras. By early next week, as the weakening Bermuda High
    shifts eastward, trades across the Caribbean will be reduced to
    moderate to fresh. A cold front may reach the northwest Caribbean
    Tue with winds shifting from southeasterly to northerly behind it.
    The front may then stall and dissipate over the NW Caribbean mid-week.

    ...ATLANTIC OCEAN...

    A Gale Warning is in effect for the far NE Atlantic waters east of
    42W. Please refer to the Special Features section for more details.

    A weakening cold front enters the Atlantic forecast waters along
    31N24W and continues to 24N48W. A surface trough, formerly part
    of the aforementioned front, then extends from 24N48W to 25N65W.
    Moderate to fresh N to NE winds and 6 to 10 ft seas follow the
    front. Scattered showers and isolated thunderstorms are along and
    within 100 nm ahead of the front. The subtropical ridge is
    anchored by 1026 mb high pressure SW of Bermuda near 29N67W. This
    pattern is supporting fresh to strong E to SE winds and 7 to 10
    ft seas from offshore of the northern portion of the Greater
    Antilles through the Bahamas and Straits of Florida. Mostly
    moderate winds and seas are noted elsewhere across the basin,
    except moderate to fresh S of 19N where seas are 6 to 9 ft.

    For the forecast west of 55W, a Bermuda High will continue to
    force fresh to strong trades and resultant rough seas from
    offshore of the northern portion of the Greater Antilles through
    the Bahamas and Straits of Florida through tonight. A frontal
    trough will rotate through the NE waters today and tonight,
    bringing fresh to strong winds through tonight. At the same time,
    a large N swell will start impacting the waters east of 62W
    tonight and will subside by mid-week. Fresh to strong S winds will
    develop off the coast of northeast Florida tonight and Mon ahead
    of a cold front moving through the southeastern United States. The
    front is forecast to move off of the coast Mon night, and reach
    from Bermuda to eastern Cuba by mid-week where it may stall and
    become a trough. This front will be followed by fresh to strong NE
    winds and moderate to rough seas.

    $$
    Lewitsky
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  • From Mike Powell@1:2320/105 to All on Sun Apr 6 09:25:00 2025
    723
    AXNT20 KNHC 060932
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Sun Apr 6 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 0900 UTC.

    ...SPECIAL FEATURES...

    Central Atlantic Gale Warning/Swell Event: A cold front is moving
    southward east of Bermuda and is now along 30N. Recent
    scatterometer satellite data indicated SW winds to minimal gale
    force within 90 nm ahead of the front. In addition to the gale
    force winds, buoy observations and altimeter satellite data
    indicated large N swell is following the front. The front will
    continue southward east of 65W through early next week, before
    eventually stalling and dissipating along 20N by late Tue. Winds
    will diminish below gale- force through late Sun. Meanwhile, the
    swell will produce seas 12 ft as far south as 18N through Mon
    night, with highest seas near 30N around 23 ft. The swell will
    subside below 12 ft through mid week.

    Caribbean Gale Warning: The pressure gradient between 1025 mb high
    pressure of 1025 mb southwest of Bermuda near 31N70W and a 1010
    mb Colombian Low will continue to support strong to near- gale
    force trades across the south-central Caribbean through tonight.
    Winds will peak at gale-force through the early morning off
    Colombia with seas reaching to 12 ft with the strongest winds.

    Gulf of Mexico Gale Warning: A strong late-season cold front is
    moving into the northwest Gulf this morning. The front will reach
    from Mobile Bay to Coatzacoalcos, Mexico by Sun evening, followed
    by strong to near- gale force N winds and building seas. Winds
    will reach gale force off Tampico, Mexico Sun morning, and off
    Veracruz, Mexico by Sun afternoon. The winds will diminish below
    gale force into Mon night, as the front reaches from Cedar Key,
    Florida to near Merida, Mexico, but strong winds and rough seas
    will follow the front across most of the western Gulf.

    Please refer to the latest NWS High Seas and Offshore Waters
    Forecasts issued by the National Hurricane Center, at website:

    https://www.nhc.noaa.gov/

    ...MONSOON TROUGH/INTERTROPICAL CONVERGENCE ZONE...

    The monsoon trough enters the Atlantic Ocean through the coast
    of Guinea near 10N14W and continues southwestward to 02N20W,
    where it transitions to the ITCZ and extends to near the coast of
    Brazil near 02S47W. Scattered moderate convection is active from
    02S to 04N between 10W and 45W.

    ...GULF OF MEXICO...

    A Gale Warning is in effect for the western Gulf of Mexico.
    Please refer to the Special Features section for more details.

    A strong late-season cold front extends from near Cameron,
    Louisiana to Tecolutla, Mexico. A recent buoy observations and
    scatterometer satellite data showed strong to near- gale force
    northerly winds and seas to 9 ft following the front over the
    northwest Gulf. Fresh to strong SE to S winds and 8 to 11 ft seas
    are noted across the central Gulf ahead of the front, and moderate
    to fresh SE winds and 5 to 8 ft seas are evident across the
    eastern Gulf. The moist southerly flow ahead of the front is
    sustaining areas of sea fog, and platform observations indicate
    visibility is 2 to 5 miles in these areas. Scattered to numerous
    showers and thunderstorms are active over Matagorda Bay in Texas
    following the front.

    For the forecast, the cold front will reach from Mobile Bay to
    Coatzacoalcos, Mexico this evening, followed by strong to near-
    gale force N winds and building seas. Winds will reach gale force
    off Tampico, Mexico later this morning, and off Veracruz, Mexico
    by this afternoon. The winds will diminish below gale force into
    Mon night, as the front reaches from Cedar Key, Florida to near
    Merida, Mexico, but strong winds and rough seas will follow the
    front across most of the western Gulf. Winds and seas will
    diminish through Tue from west to east as high pressure builds
    over the southern Plains and the front moves southeast of the
    basin. Looking ahead, gentle breezes and slight seas will persist
    Wed into Thu in all but the southeast Gulf, where large swell may
    persist through Wed.

    ...CARIBBEAN SEA...

    A Gale Warning is in effect for the waters near the coast of
    Colombia. Please refer to the Special Features section for more details.

    Recent scatterometer satellite data indicate strong to near- gale
    force winds off Colombia, in the Gulf of Honduras and across the
    Windward Passage. Since this pass occurred around 0130 UTC, the
    winds off Colombia have likely increased to gale force. The
    observations also confirm fresh to strong E to SE winds across the
    basin, except for the eastern Caribbean, south of Cuba in the
    northwest Caribbean, and south of 10N off Panama and Costa Rica.
    These winds are due to a tight gradient between 1025 mb high
    pressure west of Bermuda, and lower pressure over northern
    Colombia. Altimeter satellite data and buoy observations indicate
    9 to 13 ft over the central Caribbean, 8 to 11 ft over the Gulf of
    Honduras and off Belize, 7 to 9 ft in the Windward Passage, and 5
    to 8 ft elsewhere. Scattered showers and thunderstorms are noted
    between Haiti and Jamaica and south of the Dominican Republic.

    For the forecast, a strong pressure gradient between the Bermuda
    High and the Colombian Low will continue to produce strong trade
    winds across the central Caribbean, the Atlantic Passages and the
    Gulf of Honduras through this morning, with another pulse of gale-
    force winds expected offshore of Colombia tonight. Rough to very
    rough seas will accompany these winds. The Bermuda high will
    weaken and shift eastward late Sun through mid-week, leading to
    diminishing trades across the Caribbean. A cold front is expected
    to reach the northwest Caribbean Tue morning, with fresh to
    locally strong northerly winds filling in behind it. The front
    will move eastward and stall from central Cuba to NE Honduras and
    through Thu before dissipating.

    ...ATLANTIC OCEAN...

    A Gale Warning is in effect for the far NE Atlantic waters east of
    40W. Please refer to the Special Features section for more details.

    In addition to the gale-force winds ahead of the cold front described
    in the Special Features section, fresh to strong winds and rough
    seas are noted near the front covering the area north of 28N
    between 30W and 55W. Farther west, 1025 mb high pressure is centered
    southwest of Bermuda near 30N72W. Recent scatterometer satellite
    data shows this pattern is supporting fresh to strong E winds
    near the approaches of the Windward Passage and north of Haiti. It
    also show E to SE winds in the Old Bahama Channel between Cuba and
    the Bahamas. Moderate to occasionally fresh NE to E winds are
    evident over the tropical Atlantic, with 6 to 8 ft seas. Farther
    east, fresh N winds and rough seas are noted off Senegal. Gentle
    to moderate breezes are noted elsewhere, with 5 to 7 ft seas.

    For the forecast west of 55W, fresh N to NE winds and large swell
    follow a cold front extending from 31N38W to 27N55W to 31N65W.
    High pressure southwest of Bermuda is supporting fresh to strong
    winds off the north coast of Hispaniola and near the approaches to
    the Windward Passage, and fresh to strong S winds off northeast
    Florida ahead of an approaching cold front expected to move off
    the northeast Florida coast Mon night into Tue. Looking ahead, the
    front will generally stall from Bermuda to central Cuba by mid-
    week, followed by fresh to strong NE winds and rough to very rough seas.

    $$
    Christensen
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