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AGXX40 KNHC 120726
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
326 AM EDT Mon Apr 12 2021

Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea, and Tropical North Atlantic from 07N to 19N between 55W and 64W and the Southwest North Atlantic including the Bahamas


...GULF OF MEXICO...

A weak cold front extends from northern Florida southwest to near 25N92W. The front will reach from the southeastern Gulf to the central Gulf this afternoon and evening and to just SE of the Gulf tonight. An upper-level shortwave trough, in combination with the front, will continue to bring scattered showers and thunderstorms over the eastern Gulf south of 28N through early this morning. Some of this activity may contain frequent lightning and strong gusty winds. Another cold front will enter the northern Gulf Wed, reach from north-central Florida to southern Texas Thu and become stationary through Fri night.


...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...

An Ashfall Advisory is in effect for La Soufriere Volcano on the island of St. Vincent near 13.3N 61.2W. Mariners transiting the waters under the emitted ash should exercise caution. Fresh southeast winds will continue over the northwestern Caribbean through the period, while fresh to strong east to southeast winds continue in the Gulf of Honduras. Winds will pulse to strong speeds over a small area near the coast of Colombia during the afternoons and at night through Thu. Elsewhere, generally moderate to fresh east winds will change little through Fri night.


...SW N ATLANTIC INCLUDING THE BAHAMAS...

Fresh to strong southwest winds east of northern and central Florida will shift eastward today ahead of a cold front that will move off the southeastern U.S. coast this morning. The front will reach from near 31N73W to the northern Bahamas and to South Florida early this afternoon, from near 31N67W to the southeastern Bahamas and to eastern Cuba by late tonight and the southeast part of the area on Tue. The front will move east of the forecast waters on Wed as weak high pressure builds in behind it and as another cold front approaches the far northwest waters. This front will move across the water N and NE of the Bahamas from late Wed night through Fri night. Fresh to strong southwest winds are expected ahead of this front. Scattered showers and thunderstorms will continue to move offshore the South Florida coast this morning.

$$


.WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone:


.GULF OF MEXICO... None.


.CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...
.AMZ025...OFFSHORE WATERS LEEWARD ISLANDS... Ashfall Advisory early today into tonight.
.AMZ027...TROPICAL N ATLANTIC FROM 15N TO 19N BETWEEN 55W AND 60W... Ashfall Advisory early today into Tue night.
.AMZ035...OFFSHORE WATERS WINDWARD ISLANDS INCLUDING TRINIDAD AND TOBAGO... Ashfall Advisory early today into Tue night.
.AMZ037...TROPICAL N ATLANTIC FROM 07N TO 15N BETWEEN 55W AND 65W... Ashfall Advisory early today into Tue night.


.SW N ATLANTIC INCLUDING THE BAHAMAS... None.

$$

*For detailed zone descriptions, please visit: http://www.nhc.noaa.gov/abouttafbprod.shtml#OWF

Note: gridded marine forecasts are available in the National Digital Forecast Database (NDFD) at: http://www.nhc.noaa.gov/marine/grids.php

For additional information, please visit: http://www.nhc.noaa.gov/marine

$$


.Forecaster Aguirre. National Hurricane Center.

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