• TROPDISC: Tropical Weather Discussion...corrected

    From COD Weather Processor @1:2320/107 to All on Thursday, July 30, 2026 19:42:02
    726
    AXNT20 KNHC 301941 CCA
    TWDAT

    Tropical Weather Discussion...Corrected
    NWS National Hurricane Center Miami FL
    1815 UTC Thu Jul 30 2026

    Corrected Gulf of America synopsis

    Tropical Weather Discussion for North America, Central America
    Gulf of America, 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 1200 UTC surface analysis and satellite imagery through
    1515 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: A tight pressure gradient between the
    subtropical ridge north of the islands and lower pressures in NW
    South America will support strong to near gale-force winds and
    rough seas in the central Caribbean during the next several days.
    Winds will increase to gale-force in the offshore waters of
    Colombia and in the Gulf of Venezuela tonight. Seas are expected
    to build to around 13 ft with these winds.

    Please read the latest High Seas Forecast issued by the National
    Hurricane Center at website - https://urldefense.com/v3/__https://www.nhc.gov/text/MIAHFSAT2.shtml__;!!DZ3fjg!5bjOoYnqtUrhbNNxbGocpxpONKprqYCnj8GEOW6Nx1mHDk9ntaIc_P-_VeqcNRDuu441Ws7sbZtOQ4J4MStOILP6uqA$

    ...TROPICAL WAVES...

    An eastern Atlantic tropical wave is along 33W, south of 18N,
    moving westward at 15 kt. Scattered moderate to isolated strong
    convection is present from 04N to 11N and between 23W and 24W.

    A central Atlantic tropical wave is along 54W, south of 17N,
    moving westward at around 15-20 kt. Scattered moderate to isolated
    strong convection is observed from 07N to 16N and between 44W and
    61W.

    An eastern Caribbean tropical wave is along 68W, south of 19N,
    moving westward at 15 kt. A few showers are noted near the trough
    axis.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough reaches the Atlantic from Mauritania at 18N16W
    to 06N25W and to 12N38W. The ITCZ extends from 12N38W to 11N53W
    and then from 10N55W to 08N59W. Please see the Tropical Waves
    section above for information on the convection near the monsoon
    trough and ITCZ.

    ...GULF OF AMERICA...Corrected

    Scattered showers and isolated thunderstorms are seen in the NE
    Gulf waters associated with a frontal boundary north of the area
    and low-level convergence. The remainder of the basin is under
    fairly tranquil weather conditions. A weak pressure gradient
    dominates the Gulf waters, resulting in moderate or weaker winds
    and slight seas. However, stronger winds and higher seas are
    likely occurring near the stronger convection.

    For the forecast, a surface ridge will remain in control of the
    weather pattern across the Gulf region promoting gentle to
    moderate winds for the next several days. The exception will be
    fresh NE winds off the northwest coast of the Yucatan peninsula
    nightly into the weekend. Unsettled weather in the form of scattered
    shwoers and thunderstorms will continue over the NE Gulf through the
    weekend as a frontal boundary remains just N of the area, and as a
    moist and unstable airmass prevails over that section of the Gulf.

    ...CARIBBEAN SEA...

    Please see the Special Features section above for details on the
    Gale Warning in effect for the south-central Caribbean.

    An upper-level low over the Yucatan peninsula is generating a few
    showers and isolated thunderstorms west of 80W in the western
    Caribbean. Drier conditions are noted elsewhere.

    High pressure north of the islands forces fresh to near gale-
    force easterly trade winds and rough seas across the central
    Caribbean, with the strongest winds and highest seas to 11 ft
    occurring off NW Colombia. A recent partial scatterometer
    satellite pass captured winds up to 29 kt. Moderate to fresh
    easterly breezes and moderate seas are found in the eastern
    Caribbean. In the remainder of the basin, moderate or lighter
    winds and slight to locally moderate seas prevail.

    For the forecast, Gale Warning is in effect for the offshore waters
    of Colombia for tonight. Seas are expected to build to around 13
    ft with these winds. Elsewhere across the central Caribbean, fresh
    to near gale trades will continue to expand in coverage through
    early Fri as the pressure gradient between the Atlantic high
    pressure and low pressure in northern Colombian tightens. Mostly
    fresh trades will continue elsewhere south S of about 18N through
    the rest of the forecast period. Fresh to strong winds are
    expected to pulse in the Gulf of Honduras tonight and Fri night.

    ...ATLANTIC OCEAN...

    A broad subtropical ridge continues to dominate much of the
    tropical Atlantic waters. In the SW North Atlantic, scattered
    showers and isolated thunderstorms are noted north of 28N and west
    of 70W associated with a cold front and upper-level trough just
    north of the area. The pressure gradient between the aforementioned
    high pressure and frontal boundary results in fresh to strong
    S-SW winds and seas of 6-9 ft north of 27N and west of 65W.
    Stronger winds and higher seas may be occurring near the stronger
    convection.

    Meanwhile, moderate to locally fresh easterly winds and seas of
    5-8 ft are occurring north of the ITCZ and monsoon trough to 25N
    and west of 35W. In the far eastern Atlantic, fresh to strong N
    winds and seas of 5-8 ft are evident north of 15N and east of
    25W. Elsewhere, moderate or lighter winds and moderate seas are
    prevalent.

    For the forecast west of 55W, a high pressure ridge extending from
    25N65W to the Straits of Florida will change little through Sat
    night before it shifts northward to near 28N into early next week.
    The gradient between the ridge and a frontal boundary just NW of
    the forecast waters will continue to generally support fresh to
    strong SW winds along with scattered showers and thunderstorms
    primarily north of 27N and west of 65W for the rest of the week
    and into the weekend. Fresh to strong trades will pulse just north
    of Hispaniola at night and into the mornings through the upcoming
    weekend.

    $$
    Delgado

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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)
  • From COD Weather Processor @1:2320/107 to All on Thursday, July 30, 2026 21:20:28
    174
    AXNT20 KNHC 302120 CCA
    TWDAT

    Tropical Weather Discussion...Corrected
    NWS National Hurricane Center Miami FL
    1815 UTC Thu Jul 30 2026

    Corrected Gulf of America synopsis

    Tropical Weather Discussion for North America, Central America
    Gulf of America, 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 1200 UTC surface analysis and satellite imagery through
    1515 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: A tight pressure gradient between the
    subtropical ridge north of the islands and lower pressures in NW
    South America will support strong to near gale-force winds and
    rough seas in the central Caribbean during the next several days.
    Winds will increase to gale-force in the offshore waters of
    Colombia and in the Gulf of Venezuela tonight. Seas are expected
    to build to around 13 ft with these winds.

    Please read the latest High Seas Forecast issued by the National
    Hurricane Center at website - https://urldefense.com/v3/__https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml__;!!DZ3fjg!9zskMTgGuLtDCTj1NuoHse4WouoGZ1CmTg_fhOdLlKHzlwGoIX5x8ckSnHbbAjC9kz7cNwxcSA0qluDb5VBOk2P6H8I$

    ...TROPICAL WAVES...

    An eastern Atlantic tropical wave is along 33W, south of 18N,
    moving westward at 15 kt. Scattered moderate to isolated strong
    convection is present from 04N to 11N and between 23W and 24W.

    A central Atlantic tropical wave is along 54W, south of 17N,
    moving westward at around 15-20 kt. Scattered moderate to isolated
    strong convection is observed from 07N to 16N and between 44W and
    61W.

    An eastern Caribbean tropical wave is along 68W, south of 19N,
    moving westward at 15 kt. A few showers are noted near the trough
    axis.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough reaches the Atlantic from Mauritania at 18N16W
    to 06N25W and to 12N38W. The ITCZ extends from 12N38W to 11N53W
    and then from 10N55W to 08N59W. Please see the Tropical Waves
    section above for information on the convection near the monsoon
    trough and ITCZ.

    ...GULF OF AMERICA...Corrected

    Scattered showers and isolated thunderstorms are seen in the NE
    Gulf waters associated with a frontal boundary north of the area
    and low-level convergence. The remainder of the basin is under
    fairly tranquil weather conditions. A weak pressure gradient
    dominates the Gulf waters, resulting in moderate or weaker winds
    and slight seas. However, stronger winds and higher seas are
    likely occurring near the stronger convection.

    For the forecast, a surface ridge will remain in control of the
    weather pattern across the Gulf region promoting gentle to
    moderate winds for the next several days. The exception will be
    fresh NE winds off the northwest coast of the Yucatan peninsula
    nightly into the weekend. Unsettled weather in the form of scattered
    shwoers and thunderstorms will continue over the NE Gulf through the
    weekend as a frontal boundary remains just N of the area, and as a
    moist and unstable airmass prevails over that section of the Gulf.

    ...CARIBBEAN SEA...

    Please see the Special Features section above for details on the
    Gale Warning in effect for the south-central Caribbean.

    An upper-level low over the Yucatan peninsula is generating a few
    showers and isolated thunderstorms west of 80W in the western
    Caribbean. Drier conditions are noted elsewhere.

    High pressure north of the islands forces fresh to near gale-
    force easterly trade winds and rough seas across the central
    Caribbean, with the strongest winds and highest seas to 11 ft
    occurring off NW Colombia. A recent partial scatterometer
    satellite pass captured winds up to 29 kt. Moderate to fresh
    easterly breezes and moderate seas are found in the eastern
    Caribbean. In the remainder of the basin, moderate or lighter
    winds and slight to locally moderate seas prevail.

    For the forecast, Gale Warning is in effect for the offshore waters
    of Colombia for tonight. Seas are expected to build to around 13
    ft with these winds. Elsewhere across the central Caribbean, fresh
    to near gale trades will continue to expand in coverage through
    early Fri as the pressure gradient between the Atlantic high
    pressure and low pressure in northern Colombian tightens. Mostly
    fresh trades will continue elsewhere south S of about 18N through
    the rest of the forecast period. Fresh to strong winds are
    expected to pulse in the Gulf of Honduras tonight and Fri night.

    ...ATLANTIC OCEAN...

    A broad subtropical ridge continues to dominate much of the
    tropical Atlantic waters. In the SW North Atlantic, scattered
    showers and isolated thunderstorms are noted north of 28N and west
    of 70W associated with a cold front and upper-level trough just
    north of the area. The pressure gradient between the aforementioned
    high pressure and frontal boundary results in fresh to strong
    S-SW winds and seas of 6-9 ft north of 27N and west of 65W.
    Stronger winds and higher seas may be occurring near the stronger
    convection.

    Meanwhile, moderate to locally fresh easterly winds and seas of
    5-8 ft are occurring north of the ITCZ and monsoon trough to 25N
    and west of 35W. In the far eastern Atlantic, fresh to strong N
    winds and seas of 5-8 ft are evident north of 15N and east of
    25W. Elsewhere, moderate or lighter winds and moderate seas are
    prevalent.

    For the forecast west of 55W, a high pressure ridge extending from
    25N65W to the Straits of Florida will change little through Sat
    night before it shifts northward to near 28N into early next week.
    The gradient between the ridge and a frontal boundary just NW of
    the forecast waters will continue to generally support fresh to
    strong SW winds along with scattered showers and thunderstorms
    primarily north of 27N and west of 65W for the rest of the week
    and into the weekend. Fresh to strong trades will pulse just north
    of Hispaniola at night and into the mornings through the upcoming
    weekend.

    $$
    Delgado

    = = = = = = =
    To unsubscribe from WX-ATLAN and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-ATLAN.
    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)