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Atlantic Tropical Weather Discussion
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Expires:No;;051160
AXNT20 KNHC 171723
TWDAT
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1815 UTC Sat Jan 17 2026
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
1700 UTC.
...SPECIAL FEATURES...
Gulf of America Gale Warning:
Gale force winds are expected to develop this evening offshore of
Tampico, Mexico, with gales expanding into the central basin and
western Bay of Campeche overnight, in the wake of a cold front
moving southeastward over the Gulf. Very rough seas peaking near
13 to 15 ft are expected near these winds. Gales will end for most
areas Sun morning, but prevail through the day Sun offshore
Veracruz, Mexico. The hazardous seas will prevail into Sun night,
with conditions improving Mon as high pressure builds southward
into the region. Please read the latest High Sea and Offshore
Waters Forecasts issued by the National Hurricane Center at
website:
https://nhc.noaa.gov/text/MIAHSFAT2.shtml and
https://nhc.noaa.gov/marine/offshore.php for more details.
Significant Heavy Rainfall in the Gulf of Honduras:
Heavy rainfall is expected over the Gulf of Honduras Sun through
the middle of next week as a shear line or pre-frontal trough
interacts with low-level moisture in the region. The heaviest
precipitation is expected on Tue and Wed, with the most persistent
rain leading to totals of 8 to 12 inches over the southwestern
Gulf of Honduras, and local amounts over 12 inches will be
possible. Widespread amounts of 2 to 6 inches are expected over
the rest of the region. Please consult products from local
meteorological services for additional information.
...MONSOON TROUGH/ITCZ...
The monsoon trough enters the Atlantic near 08N13W and extends to
03N17.5W. The ITCZ continues from 03N17.5W to 02N37.5W. Scattered
moderate convection is occurring from 01N to 07N east of 18W, and
from 03N to 05N between 30W and 35W.
...GULF OF AMERICA...
Please read the Special Features section for information on the
Gale Warnings in the southwestern basin.
A cold front extends from the Florida Panhandle near 30.5N87W to
northeastern Mexico near 25.5N97W. Scattered showers are noted
along and ahead of the front in the central and northeastern
basin. Recent scatterometer satellite data and METAR data show
fresh to strong N to NE winds are occurring in the wake of the
front, and buoy data over the northwestern Gulf show 8 to 9 ft
seas are accompanying these winds. Farther south, a surface trough
is noted in the west-central Gulf through the western Bay of
Campeche, and locally fresh NW winds are noted west of this
feature offshore of east-central Mexico. Elsewhere, moderate to
fresh S to SE winds are noted in the northeastern basin, ahead of
the cold front. Moderate or weaker winds and slight seas prevail
over the rest of the Gulf.
For the forecast, the aforementioned cold front will move SE
through the basin this weekend and exit Sun night. Strong to near-
gale force N to NE winds are expected behind the front through
the weekend, with gales developing late this evening offshore
Tampico, Mexico, and spreading SE into the central basin and
western Bay of Campeche overnight. Gales will end for most areas
Sun morning, but prevail through the day Sun offshore Veracruz,
Mexico. Rough seas will accompany the strong winds, with very
rough seas where gales occur. The hazardous seas will prevail into
Sun night, with conditions improving Mon as high pressure builds
southward into the region. Looking ahead, building high pressure
over the SE United States should cause strengthening NE to E winds
over most of the Gulf on Tue and Wed.
...CARIBBEAN SEA...
An increasing pressure gradient between high pressure building
north of the Caribbean and low pressure over northern Colombia is
supporting widespread fresh to strong trade winds over the central
and eastern basin, as seen via recent scatterometer satellite
data. Altimeter satellite data and buoy data show rough seas,
peaking near 9 ft, over the central Caribbean. Moderate to locally
fresh NE winds and 4 to 6 ft seas prevail over the northwestern
basin. Elsewhere, an E swell over the central Atlantic is
supporting rough seas of 8 to 9 ft east of the Lesser Antilles and
through the passages into the eastern Caribbean.
For the forecast, strong trades will prevail in the central
Caribbean this weekend, before becoming confined to the south-
central basin next week, as they are disrupted by a cold front
entering from the northwest. Offshore Colombia, these trade winds
will pulse to near gale each night through early next week. The
aforementioned cold front will cross the Yucatan Channel Sun
night, then stall front central Cuba to Honduras Mon night. This
will lead to showers and thunderstorms over Honduras and adjacent
waters early next week, with fresh to strong NE winds behind the
front through Tue night.
...ATLANTIC OCEAN...
A decaying stationary front extends from the central Atlantic
near 31N56.5W to the southern Bahamas, and recent scatterometer
data show moderate to fresh NE winds are occurring north and west
of this feature as high pressure builds in the wake of the front.
Rough seas occurring in this region are noted via SOFAR buoy data.
Farther west, a surface trough has been analyzed offshore of
Florida through the Florida Straits, and locally fresh SW winds
are occurring offshore of northern Florida ahead of a cold front
moving through the southern U.S. Elsewhere, a 1037 mb high
building near 34.5N33.5W is supporting fresh to strong NE to E
winds along the periphery of the ridge, generally north of 15N.
Rough seas cover much of the open Atlantic as per altimeter data
and SOFAR data. Farther east, a cold front extends from northwest
Africa to 25.5N30W, and fresh to strong NE winds and rough to
locally very rough seas are occurring near this front.
For the forecast west of 55W, a building Bermuda-Azores High will
enhance the trades up to fresh to locally strong east of 65W for
the next few days. A cold front will emerge off the SE United
States coast Sun morning accompanied strong winds north of 27N.
Winds with the front will diminish on Mon. Looking ahead, building
high pressure over the SE United States on Tue and Wed will boost
NE winds to fresh to strong in the vicinity of the Bahamas and
Florida Straits.
$$
ADAMS
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