Marine Weather for HS 101


marine weather discussion NWS National Hurricane Center Miami FL 1207 PM EST Thu Dec 13 2018

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...

Fresh to strong southerly flow will continue east of a cold front moving off the Texas coast. The cold front will reach a position from the Mississippi Delta to the Bay of Campeche overnight, reach from the Florida Big Bend to the Yucatan Channel late Fri, and continue east through the Bahama channel on Sat. Strong to near gale force northwesterly flow west of the front will increase to gale force this evening over the northwest Gulf waters, with 30-40 kt conditions spreading south across the west-central Gulf overnight into Fri. The pressure gradient will relax on Fri night and Sat, with moderate west flow expected on Sat evening as the seas subside to less than 8 ft. The gradient will continue to relax with light northerly winds on Mon.

...Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w...

Fresh to strong trade winds will prevail across the S-central Caribbean through the upcoming weekend, with nocturnal pulses to near gale force off the northwest coast of Colombia. These strong trades will expand north across the entire central Caribbean on Fri and Fri night. The remnants of a frontal trough will gradually dissipate over the northwest Caribbean through Fri. A cold front will enter the Yucatan Channel on Fri afternoon, stall and then gradually dissipate over the NW Caribbean into early next week. Strong north winds are forecast west of the front across the Gulf of Honduras late Fri night and Sat. Large north swell will reach the leewards on Sat, and spread south through the northeast Atlantic passages during the upcoming weekend.

...SW N Atlantic including the Bahamas...

A frontal trough from 28n55w to the Windward Passage will drift back north and extend east to west along 25n on Fri, and then gradually wash out as it continues north across the northeast portion on Sat. Strong to near gale force southerly return flow will develop north of the Bahamas overnight and Fri, all ahead of another cold front that will sweep east across the northern waters during the upcoming weekend, reaching a position from Bermuda to northwest Cuba on Sun night, and from 31n71w to central Cuba on Mon. The front will stall across the tropical waters north of Antilles on Tue.


.Warnings...Any changes impacting coastal NWS offices will be coordinated through AWIPS ii collaboration chat, or by telephone:

.Gulf of Mexico... .gmz011...NW Gulf including Stetson bank... Gale Warning tonight into Fri. .Gmz017...W central Gulf from 22n to 26n W of 94w... Gale Warning tonight into Fri. .Gmz019...Central Gulf from 22n to 26n between 87w and 94w... Gale Warning Fri.

.Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w... none.

.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 Nelson. National Hurricane Center.

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