000
AGXX40 KNHC 041447
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1047 AM EDT SAT MAY 4 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: BLENDED GFS INTO PREVIOUS OFFICIAL GRIDS
WITH HIGH CONFIDENCE

COLD FRONT EXTENDING FROM FLORIDA PANHANDLE TO 27N86W WILL WEAKEN
AS IT MOVES SLOWLY E THROUGH TONIGHT. WINDS BEHIND THE FRONT WILL
CONTINUE TO DIMINISH. ANOTHER COLD FRONT IS EXPECTED TO MOVE INTO
THE NW GULF EARLY SUN...THEN QUICKLY MOVE ACROSS THE NORTHERN GULF
WATERS THROUGH LATE SUN FOLLOWED BY FRESH TO STRONG WINDS. WINDS
AND SEAS WILL DIMINISH OVER MUCH OF THE AREA MON THROUGH WED AS
WEAK HIGH PRES SETTLES OVER THE GULF WATERS.

...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 64W...
MODEL PREFERENCE: GFS BLENDED INTO PREVIOUS OFFICIAL GRIDS WITH
HIGH CONFIDENCE

LIGHT WINDS AND VERY CALM SEAS PREVAIL ACROSS JUST ABOUT THE
ENTIRE REGION...WITH SEAS OF AROUND 2-3 FT. THE EXCEPTION IS IN
THE FAR WRN PORTION OF THE CARIBBEAN WHERE NW FLOW FUNNELING IN
FROM THE GULF OF MEXICO WITH NW WINDS OF 20-25 KT N OF 19N AND W
OF 84W AND THROUGH THE YUCATAN CHANNEL. EXPECT THIS NW FLOW TO
DIMINISH TO 10-15 KT TONIGHT INTO SUN WITH SEAS THERE LOWERING TO
5-6 FT.

...SW N ATLANTIC INCLUDING THE BAHAMAS...                   
MODEL PREFERENCE: GFS BLENDED INTO PREVIOUS OFFICIAL GRIDS
WITH AVERAGE TO HIGH CONFIDENCE

HIGH PRES BUILDING ACROSS THE N WATERS AND A 1006 MB LOW PRES
LOCATED NEAR CAPE CANAVERAL FLORIDA WILL CONTINUE TO BRING STRONG
WINDS AND LARGE SEAS ACROSS MUCH OF THE N PORTION OF THE AREA
THROUGH TONIGHT. THE LOW PRES WILL DRIFT TO NE FLORIDA
TONIGHT...AND TO ACROSS SE GEORGIA SUN. A FRONTAL TROUGH
ASSOCIATED WITH THE LOW WILL ALSO LIFT IN N THROUGH TONIGHT
REACHING FROM NEAR 31N80W TO 25N73W SUN...AND THE NE WATERS BY MON
WITH AS A WEAK PRES PATTERN SETTLES IN ACROSS THE REGION THROUGH
WED. A COLD FRONT WILL MOVE ACROSS THE FAR NW AND N CENTRAL WATERS
LATE MON AND TUE. LONG PERIOD NE SWELLS WILL CONTINUE OVER MUCH OF
THE REGION THROUGH THE FORECAST PERIOD.

.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.