060=20
AXNT20 KNHC 040551
TWDAT=20
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0615 UTC Thu Sep 4 2025
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 0000 UTC surface analysis and satellite imagery through=20
0500 UTC.
...SPECIAL FEATURES...
Eastern Tropical Atlantic:
An eastern Atlantic tropical wave is near 34W from 19N southward,
several hundred nautical miles west-southwest of the Cabo Verde
Islands. It is moving west at 10 to 15 kt. Scattered moderate
convection is seen from 12N to 15N between 30W and 34W.
Environmental conditions are conducive for development of this
system during the next several days, and a tropical depression is
likely to form late this week or this weekend over the eastern or
central tropical Atlantic. There is a medium chance of formation=20
within the next 2 days, and a high chance within the next 7 days.=20
Refer to the latest NHC Tropical Weather Outlook at=20
https://urldefense.com/v3/__http://www.hurricanes.gov__;!!DZ3fjg!43yHqQkMN7= BJUATbBPhbZCd1FJdnq6ejoxd796X-hdjI6RbSxPW3_kBXWbpCGZmu3fH-bDWghhkgyrbWlPC5s= t0kP2Q$ for more details.
...TROPICAL WAVES...
Refer to the Special Features section above on an eastern=20
Atlantic tropical wave.
A tropical wave just east of the Lesser Antilles is near 59W from
21N southward, and moving west around 10 kt. Very dry air at low=20
to mid levels are hindering any significant convection.
...MONSOON TROUGH/ITCZ...=20
A monsoon trough enters the Atlantic along the coast of Senegal=20
near Dakar, then extends west-southwestward across 12N30W to=20
near 09N45W. An ITCZ continues from 09N45W to north of Suriname=20
at 07N56W. Scattered moderate to isolated strong convection is=20
noted near and south of the monsoon trough from 07N to 13N between
the coast of Guinea-Sirre Leon and 29W. Farther west, similar=20
convection is present up to 140 nm along either side of monsoon=20
trough and ITCZ between 38W and 48W.
The eastern end of the East Pacific monsoon trough is triggering
scattered heavy showers and isolated strong thunderstorms across
the Caribbean waters near Costa Rica, Panama and northwestern
Colombia.
...GULF OF AMERICA...
A frontal trough curves westward from near Key Largo, Florida
through a 1009 nm low near 26N88W to near 24N94W at the west-
central Gulf. Scattered moderate convection is occurring across
the Florida Straits, including the Florida Keys. Gentle to=20
moderate E to SE winds are seen over the northeastern Gulf, while
light to gentle winds dominate the rest of the Gulf. Seas of 1 to 3
ft prevail for the entire Gulf.
=20=20
For the forecast, the frontal trough is likely to persist over the
east-central Gulf through Sat. This feature will continue to=20
generate scattered to numerous showers and isolated thunderstorms,
mainly across the eastern part of the Gulf. A cold front is=20
forecast to enter the northern Gulf waters on Sun, becoming=20
stationary early next week. A slight increase in winds and seas is
expected behind this boundary. Elsewhere, a weak pressure=20
gradient in place will maintain gentle to moderate winds with=20
slight to locally moderate seas through early next week.=20
...CARIBBEAN SEA...
A 1015 mb high is located at the lee of Cuba, while an upper-level
trough is over Hispaniola and the central basin. Modest=20
convergent surface winds over the eastern half of the high are=20
being enhanced by divergent flow near the upper trough, resulting=20
in scattered showers and isolated strong thunderstorms across=20
eastern Cuba, Jamaica nearby waters, including the Windward=20
Passage. Refer to the Monsoon Trough/ITCZ section for additional=20
convection in the Caribbean Sea. Moderate to fresh ENE to ESE=20
winds and seas of 4 to 6 ft are present at the south-central=20
basin, and Gulf of Honduras. Light to gentle winds with 1 to 3 ft=20
seas are noted at the northwestern basin and near the Windward=20
Passage, except locally stronger winds and higher seas near=20
showers and thunderstorms. Gentle to moderate ENE to ESE winds and
seas at 2 to 4 ft prevail elsewhere in the Caribbean Sea.
For the forecast, the subtropical ridge extending southwestward
from the central Atlantic to the northwestern basin will combined
with lower pressures in northern Colombia to support moderate to=20
fresh easterly trade winds along with moderate seas across much of
the central basin through Sat. Fresh to locally strong winds are=20
expected to pulse at night off Colombia and the Gulf of Venezuela=20
through Fri night. In addition, moderate to locally fresh E winds=20
and slight to moderate seas will prevail in the Gulf of Honduras=20
through Sat night.=20
...ATLANTIC OCEAN...
Please read the Special Features section at the beginning about
the potential development of a tropical depression in the eastern
and central Atlantic.
A stationary front extends southwestward from a 1010 mb low=20
off the Georgia/south Carolina coast at 33N72W across 31N73W to=20
near Key Largo, Florida. Convergent winds near and south of this
boundary are causing scattered moderate to isolated strong=20
convection from 20N to 28N between 72W and 80W, including the=20
Bahamas, Turks and Caicos Islands and the Great Bahama Bank.
Farther east, an upper-level low near 25N59W and its related
surface troughs are generating scattered moderate to isolated
strong convection from 22N to 27N between 53W and 60W. Refer to
the Monsoon Trough/ITCZ and Tropical Waves sections for additional
convection in the Atlantic Basin.
Mainly gentle W to NW to NE winds with seas at 2 to 5 ft are
evident west of the stationary front. For the western and central
Atlantic north of 10N between 35W and the stationary front,
moderate with locally fresh NE to SE to S winds and 4 to 6 ft seas
are present. For the remainder of the Atlantic Basin west of 35W,
gentle to moderate SE to SW winds and seas of 4 to 6 ft in mixed
moderate swells prevail.
For the forecast west of 55W, the stationary front will persist
through the weekend but also shift slightly westward as the=20
Atlantic high pressure westward. Moderate to fresh southerly=20
winds are expected ahead of the boundary through late Thu. Unsettled
weather is expected to conditions will continue south and east of
the front, including Cuba over the next few days. Stronger winds=20
and higher seas are likely near heavy showers and strong thunderstorms. Elsewhere, the Atlantic ridge will continue to dominate the=20
weather pattern across the western Atlantic, supporting gentle to
moderate winds and mostly moderate seas.=20
$$
Chan
=3D =3D =3D =3D =3D =3D =3D
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