[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 230512
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1212 AM EST Sun Dec 23 2018

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 0000 UTC surface analysis and satellite imagery through
0500 UTC.

...SPECIAL FEATURES...

...Caribbean Gale Warning...

Northeast gale-force winds are forecast to pulse each night through
the weekend from 11N to 13N between 73W and 77W, with seas ranging
from 9 to 12 feet. See the latest High Seas Forecast product
under AWIPS/WHO headers HSFAT2/FZNT02 KNHC for more details.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from the coast of Sierra Leone near
07N11W to 05N14W. The ITCZ continues from that point to 03N30W to
02S44W. Scattered moderate convection is noted south of 06N
between 20W-48W.

GULF OF MEXICO...

Surface ridging prevails over the basin, anchored by a 1023 mb
high centered over northern Florida. Gentle to moderate winds are
observed across the Gulf as ridge remains in control. No
significant precipitation activity is observed at this time. The
ridge will shift southeast through Sunday. A weak cold front will
move into the northwest waters on Sun, stall from the Florida Big
Bend to the Texas Coastal Bend on Monday, and gradually dissipate
through early Tuesday.

CARIBBEAN SEA...

A stationary front extends from the Windward Passage to 15N80W.
Broken to overcast clouds and scattered showers are seen along the
front and extending to 180 nm west of the front. Elsewhere,
scattered showers are seen over Puerto Rico and the Virgin
Islands, and the southeast Caribbean. The central Caribbean
between 66W-75W is free of any significant shower activity, with
partly cloudy skies.

Strong to near gale force trades will continue across the
S-central Caribbean during the day through the week, increasing
to gale-force along the coast of Colombia during the overnight
hours. The stationary front over the west Caribbean will
gradually dissipate through Sunday. Fresh to locally strong
northeast flow will continue across the west Caribbean through
late Monday. Fresh to locally strong southeast flow will develop
across the northwest Caribbean on Tuesday night.

ATLANTIC OCEAN...

A cold front over the western Atlantic extends from 31N62W to
southern Bahamas near 22N72W, then transitions to a stationary
front from 22N72W to the Windward Passage. Scattered showers are
observed along the front. To the east, a pair of surface troughs
are depicted in scatterometer data. The first extends from 31N32W
to 28N35W. The second one extends from 28N32W to 22N34W. Scattered
moderate convection prevails in the vicinity of these troughs
north of 24N between 26W-36W.

The cold front overt he west Atlantic will slow down and become
weaker on Sunday. The remnants of the front will drift NW on Mon
and Tue. Moderate to fresh easterlies are expected S of 28N on
Tue, increasing fresh to locally strong on Wed and Thu.

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

$$

ERA
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