Marine Weather for HS 101

Forecast

marine weather discussion NWS National Hurricane Center Miami FL 124 PM EDT Tue Apr 21 2015

Marine weather discussion for the Gulf of Mexico...Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w...and the SW N Atlantic including the Bahamas.

...Gulf of Mexico...

Model preference: GFS blended with previous official. Blended mww3 with previous official for waves. High confidence.

Agriculture smoke indicated on visible satellite imagery across the SW Gulf. A weak cold front extends from Tampa Bay to 26n89w then stationary to the Texas Mexico border. The cold front will move E of the area tonight while the stationary front dissipates across the central portion of the area. Weak high pressure will build in the wake of the front and prevail through Sat night. A surface trough will shift W off the Yucatan Peninsula each night...move W across the SW waters during the early morning hours and dissipate by midday. Winds will remain 15 kt or less through the forecast period...except Ely increasing to 15-20 kt across the E Bay of Campeche Fri through Sat night.

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

Model preference: GFS blended with previous official. Blended mww3 with previous official for waves. High confidence.

Atlc ridging N of the area...combined with low pres over NW Colombia...will support 20-25 kt NE winds near the NW coast of Colombia tonight and Wed...then the affected area should shrink. E-se trades will increase to 20-25 kt across the Gulf of Honduras each night with seas building to 9 ft. Moderate to fresh trades expected elsewhere. N swell resulting in 7-8 ft combined seas extend W across the tropical Atlc waters S of 15n. These conditions will subside this evening ot less than 8 ft. The next round of NNE swell will reach 19n55w late Wed night with seas up to 8 ft again by Thu...with these conditions reaching near the E Caribbean passages Thu evening...and continuing through early Fri...then subsiding from the N on Fri night and Sat.

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

Model preference: GFS blended with previous official. Blended mww3 with previous official for waves. High confidence.

A cold front from 31n80w to the N Florida coast will extend from Bermuda to central Florida tonight...then stall from 31n55w to 25n70w on Wed...and dissipate through Thu. A second cold front will off the NE Florida coast late Thu and extend from Bermuda to the central Bahamas late Fri then stall and dissipate along 26n on Sat. Southerly winds will increase across the NW portion of the area Fri night ahead of a third cold front moving off the NE Florida coast on Sat late and extending from Bermuda to the NW Bahamas early sun.

$$

.Warnings...Any changes impacting coastal NWS offices will be coordinated through AWIPS 12 planet 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.Hurricane warnings.Gov/marine

$$

.Forecaster dgs. National Hurricane Center.

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