Tropical Weather Discussion
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AXNT20 KNHC 131758

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
205 PM EDT Tue Mar 13 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 1200 UTC surface analysis and satellite imagery through
1745 UTC.


...Atlantic Ocean Gale Warning...

A cold front extends across the western Atlantic from 32N64W to the
central Bahamas to eastern Cuba near 21N76W. Gale-force winds are
expected tonight north of 28N west of the cold front to 76W, and
north of 27N within 300 nm east of the front, with seas to 14 feet.
These conditions will persist another six hours through this
evening. Please read the latest Atlantic Ocean High Seas Forecast
under AWIPS/WMO headers HSFAT2/FZNT02 KNHC, for more details.


The monsoon trough axis extends from the African coast near 07N11W
to 04N18W. The ITCZ continues from 04N18W to South America near
03S40W. Isolated showers are south of the monsoon trough and east of



A cold front has exited the basin. Scattered showers are noted over
the western Gulf south of 25N and west of 94W. Fresh to strong
northerly winds are across the basin. Strong northerly winds will
diminish from the northwest during the evening. A ridge extending
from northeast Texas to the Straits of Florida will develop into a
high pressure center over NE Gulf beginning Thu into Fri.


A cold front extends from eastern Cuba near 21N76W to the Yucatan
Channel near 18N88W. The front will extend from eastern Cuba to the
Gulf of Honduras this evening, stall from Hispaniola to Nicaragua
tonight, then dissipate by Thu. High pressure will build
southeastward from the Gulf of Mexico into the NW Caribbean by the
end of the week. Fresh to strong trades continue across the waters
east of 80W, except for near gale-force winds north of the A-B-C


A cold front extends from 32N64W to eastern Cuba near 21N76W. Gale
force winds are over the western Atlc N of 28N between the front and
76W, and also N of 27N within 300 nm east of the front. Scattered
moderate convection is within 240 nm E of the front N of 28N. A
broad area of high pressure prevails across the central and eastern
Atlc, anchored by a 1026 mb high center located near 27N38W.

The convection associated with the front will shift eastward and
diminish this evening as the front continues to push to the east.
The front will reach from near 30N60W to eastern Cuba tonight. High
pressure building from the northwest will cause the northern part of
the front to begin moving eastward again by Wed night.

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