Marine Weather for HS 101


marine weather discussion NWS National Hurricane Center Miami FL 200 PM EST Tue Nov 20 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...

A frontal boundary extends from the Florida Panhandle to weak low pres over the NW Gulf near 27n93w Louisiana to near Tampico Mexico. A high pressure to the W of the front will support strong winds W of the front and W of 92w today and tonight. A weak trough extending SW from near Tampa Florida to near 23n86w will dissipate by tonight. The low will lose identity by tonight and the front will stall from S Florida to the NW Gulf near 26n95w to near Veracruz Mexico by Thu night. Weak low pres developing along the front E of Brownsville TX will generate strong winds within 120 nm of the TX coast on Thu, then the low and front will dissipate, allowing the winds to subside by Fri.

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

Fresh to strong winds will continue along the coast of Colombia through Thu, then a cold front heading se from the United States Mainland will weaken the ridge N of the Caribbean and allow the winds to subside. Large long period NE swell over the Atlantic will continue to impact the waters east of the Lesser Antilles through Wed night.

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

A weak surface trough over the se Bahamas will dissipate by Wed. A frontal boundary extending NE from near Cape Canaveral Florida to 31n75w will sink S to reach the central Bahamas on Wed, then stall Thu through Fri night. Strong high pressure building S behind a reinforcing cold front Fri and Sat will cause strong winds to develop NE of the Bahamas. Seas outside the Bahamas will build to between 9 and 14 ft from Fri through Sat night.


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

.Gulf of Mexico... .gmz017...W central Gulf from 22n to 26n W of 94w... gale conditions possible Sun night. .Gmz023...SW Gulf S of 22n W of 94w... gale conditions possible Sun night.

.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 McElroy. National Hurricane Center.

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