HS 101

marine weather discussion NWS National Hurricane Center Miami FL 157 am EDT Thu may 23 2013

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 and blended with official forecast with high confidence.

Ahigh pres ridge extending along 30n from the western Atlc across the northern Gulf to the Texas coast today. Cold front will move into the NE Gulf Fri move E of the area over the weekend. Seas currently 1-2 ft across the eastern Gulf are expected to build to 3-4 ft this weekend behind the front. NE winds are forecasst to increase to 15-20 kt in the Gulf of Campeche this weekend associated with trough currently crossing the Yucatan penisula as it intensifies between 90w- 95w.

...Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w... model preference: GFS blended official forecast with high confidence.

High pres N-NE of the area will maintain moderate trade winds across most of the region through sun. Weak tropical wave in the SW Caribbean S of 14n along 83w will move across Central America tonight will maintain fresh E winds in the Gulf of Honduras. Another tropical wave analyzed along 46w S of 07s is projected to reach the southern part of tropical N Atlc Fri then move into the se Caribbean early sun with an increase in trade winds and shower activity. Fresh E-NE winds off the coast of Colombia are expected Fri and Sat then diminish sun as a cold front moving across the SW N Atlantic weakens the ridge N of the Caribbean.

...SW N Atlantic including the Bahamas... model preference: GFS blended with official forecast with high confidence.

High pres ridge along 31n will maintain light to moderate se winds N of 25n and moderate to fresh trades over southern waters. Se winds are expected to increase W of 70w Thu as a weak trough develops off NE Florida N of Grand Bahama. A cold front will move off the southern Georgia coast Fri night and moves eastward through sun then weakens NE of the region Mon. A brief period of N-NE winds to 25 kt immediately behind front N of 30n early Sat increasing seas to 6-7 ft.

$$ .Warnings...Any changes impacting coastal NWS offices will be coordinated through AWIPS 12 planet chat or by telephone:

.Gulf of Mexico... Gmz011...none. Gmz013...none. Gmz015...none. Gmz017...none. Gmz019...none. Gmz021...none. Gmz023...none. Gmz025...none.

.Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w... amz011...none. Amz013...none. Amz015...none. Amz017...none. Amz019...none. Amz021...none. Amz023...none. Amz025...none. Amz027...none. Amz029...none. Amz031...none. Amz033...none. Amz035...none. Amz037...none. Amz039...none.

.SW N Atlantic including the Bahamas... Amz111...none. Amz113...none. Amz115...none. Amz117...none. Amz119...none. Amz121...none. Amz123...none. Amz125...none. Amz127...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.Hurricanes.Gov/marine

$$ .Forecaster dgs. National Hurricane Center.