marine weather discussion NWS National Hurricane Center Miami FL 116 am EDT Sat may 27 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 thermal trough will develop late each afternoon over the Yucatan Peninsula, and shift W across the southwestern Gulf waters, generally to S of 24n between 90w and 93w, during the overnight and early daylight hours, and gradually lose identity along about 94w by late each morning. Expect a NE-E-se 15-20 kt wind shift along the trough axis, except 20 to 25 kt along the N coast of the Yucatan Peninsula where seas will build to 6 ft.
A surface high will meander over the far NE Gulf waters through Wed night with fresh southerly return flow, and 3 to 5 ft seas, expected over the W and SW Gulf waters through Mon night, except for an embedded swatch of strong se winds expected along the Mexico coast near 21n97w during the evenings. Moderate se return flow forecast over the western Gulf on Tue through Wed night. Light to moderate anticyclonic flow forecast E of 88w through Wed night.
...Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w...
Atlc high pressure will support strong E trades, with 7-11 ft seas, across the central Caribbean through Sun morning, with these conditions developing again on Tue as Atlc high pressure restrengthens. Moderate to locally fresh trades, and 3 to 6 ft seas, forecast over the western and eastern portion of the discussion area through Wed night. The only exception is strong E trades will develop across the Gulf of Honduras during the overnight hours.
...SW N Atlantic including the Bahamas...
A cold front extends from Bermuda to 29n72w then becomes stationary to se FL. The cold front will continue a little further E stalling from 31n60w to 28n65w tonight as the stationary segment dissipates. An E to W ridge currently along a position from 29n55w to 26n77w will extend E to W along 27n by Sun night where it will meander through Tue, then shift N to along 28n on Wed. Moderate to fresh easterlies are expected S of 23n, except becoming a strong E breeze along the N coast of Hispaniola during the evenings beginning on Tue. Moderate SW flow forecast N of the ridge.
.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.