[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 251723
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1223 PM EST Sat Nov 25 2017

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 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1715 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 12N17W to
11N18W. The Intertropical Convergence Zone extends from 11N18W to
04N40W. Scattered moderate convection is from 03N-13N between
20W-34W.

...DISCUSSION...

GULF OF MEXICO...

High pressure dominates the Gulf of Mexico with a 1017 mb high
centered over southeast Alabama, and a 1016 mb high centered over
the southwest Gulf near 25N92W. These features are supporting generally
fair weather over the basin. A surface trough extends from 30N85W
to 23N85W. Light to gentle winds prevail across the basin. Little
change is expected through tonight.

CARIBBEAN SEA...

The tail end of a cold front is over the northwest Caribbean from
central Cuba near 21N79W to 18N82W. South of the front, a
persistent surface trough extends from 19N79W to 13N80W. Scattered
showers are noted along and in the vicinity of the trough between
77W-83W. Gentle to moderate northwest winds are west of 80W,
except fresh near the coast of Honduras and Nicaragua. Mainly
moderate easterly trades cover the Caribbean east of 80W. Over
the next 24 hours the front will stall over the northwest
Caribbean and then dissipate through Monday. Otherwise, little
change is expected.

...HISPANIOLA...

Isolated showers continue over the area as moist southwest flow
aloft prevails over the region. Little change is expected through
tonight.

ATLANTIC OCEAN...

A cold front extends into the area of discussion over the west
Atlantic near 31N72W to 22N78W. The combination of this cold
front and an upper-level trough to the west supports scattered
moderate convection north of 23N between 65W-72W. To the east,
another cold front extends from 31N50W to 26N57W. No significant
convection is noted with this front. A 1000 mb low is centered
north of the discussion area near 31N25W. This low supports a
cold front that enters the area near 31N17W to 23N22W to 17N38W.
Scattered showers are noted near the low mainly north of 26W. Over
the next 24 hours, the southern portion of the west Atlantic cold
front will become stationary. The other fronts will continue to
move east.

For additional information please visit
http://www.hurricanes.gov/marine

$$

ERA
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