000
AGXX40 KNHC 310640
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
240 AM EDT WED JUL 31 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 WITH GOOD CONFIDENCE.

WEAK HIGH PRES WILL PERSIST OVER THE EASTERN AND NE GULF THROUGH 
SUN. EXPECT GENTLE TO MODERATE E-SE WINDS ACROSS MOST OF THE 
REGION THROUGH FORECAST PERIOD WITH SEAS GENERALLY 3 FT OR LESS 
EXCEPT W OF 95W AND SW GULF WHERE SEAS MAY REACH 3-4 FT AT TIMES.

...CARIBBEAN SEA AND TROPICAL N ATLANTIC...                    
MODEL PREFERENCE: GFS WITH GOOD CONFIDENCE.

PERSISTENT HIGH PRES RIDGE IN WEST-CENTRAL ATLC AND STATIONARY 
LOW PRES OVER NORTHERN SOUTH AMERICA WILL MAINTAIN MODERATE PRES 
GRADIENT ACROSS REGION THROUGH SUN WITH FRESH E WINDS CONTINUING 
IN THE CENTRAL CARIBBEAN THROUGH FRI. TIGHTER PRES GRADIENT WILL 
DEVELOP FRI NIGHT...WHICH WILL ALLOW WINDS AND SEAS TO INCREASE 
NEAR THE COAST OF COLOMBIA THIS WEEKEND. WITH HIGH PRES EXPECTED 
TO STRENGTHEN NEAR 30N55W THU THROUGH SAT...SEAS WILL BUILD TO 5-
7 FT FRI AND SAT IN TROPICAL N ATLC FROM STRONGER NE TRADES IN 
THE WEST-CENTRAL ATLC BETWEEN 10N AND 20N.

...SW N ATLANTIC W OF 55W INCLUDING THE BAHAMAS...               
MODEL PREFERENCE: GFS WITH GOOD CONFIDENCE.

PERSISTENT HIGH PRES RIDGE ALONG 29N AND WEAKENING TROPICAL WAVE 
ACROSS CENTRAL BAHAMAS IS EXPECTED TO BECOME MORE DIFFUSE AS IT 
APPROACHES FLORIDA. WINDS AND SEA HEIGHTS WILL CONTINUE TO 
DIMINISH NEAR THE BAHAMAS THROUGH THU. GENTLE TO MODERATE E-SE 
WINDS WILL PREVAIL ELSEWHERE S OF 27N THROUGH SUN WITH GENTLE S-
SW WINDS N OF 27N.

$$

.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 MUNDELL. NATIONAL HURRICANE CENTER.