Marine Weather for HS 101


marine weather discussion NWS National Hurricane Center Miami FL 115 am EDT Wed Oct 18 2017

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 quasi-stationary front extending from Tampa Bay to 25n90w to the central Bay of Campeche will creep S across the S FL peninsula throughout today and gradually lose identity W of 80w. Strong to near gale NW flow will continue along the coast of Veracruz today. A strong NE breeze is expected across the NE waters today. A fresh to locally strong E breeze is expected across the northern Gulf waters on Thu and Fri, becoming se across the NW Gulf waters on Thu night and continuing through Sat night, with the next cold front expected on sun.

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

A tropical wave currently along 82w will move W across Central America today. Fresh to locally strong trades have set up E of this wave. A second tropical wave is along 67w and will continue W accompanied by isol ts. A third tropical wave accompanied by considerable convection and will pass W through the windwards today and effectively reinforce the existing trade flow resulting in strong E trades, and seas of 7-11 ft, spreading W across the Caribbean E of 73w by sunrise on Thu. These strong conditions will shift further W and extend across the central Caribbean beginning on Fri and persisting well into next week.

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

A broad surface trough continues between 68w and 73w. A cold front is approaching the trough along a position from 31n70w to se FL. Strong Post-frontal NE flow with seas to 12 ft expected W of a line from 31n72w to Post Canaveral FL today and diminishing tonight. The northern portion of the front is expected to merge with trough tonight, becoming quasi-stationary along a position from 31n67w to the NW Bahamas to the FL straits. The merged boundary will drift W on Thu with global models agreeing that a surface low will develop along the front near 31n71w around sunrise on Thu, and immediately begin to move N-NE while dragging the cold front E to a position from Bermuda to the central Bahamas around sunrise on Fri. A second low may develop along the front near 30n62w on Sat as the front begins to stall again. The front expected to dissipate W of 65w by sun as fresh se return sets up across the waters N of 23n W of 72w.


.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... 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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