000
AGXX40 KNHC 080607
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
207 AM EDT THU AUG 8 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: HIGH CONFIDENCE. LATEST GFS/ECMWF BLENDED WITH
THE OFFICIAL FORECAST. NWPS USED FOR WAVE PARAMETERS.

1015 MB HIGH PRES IS CENTERED OVER THE NW GULF NEAR 28N91W. A
SURFACE TROUGH IS MOVING FROM E TO W CURRENTLY IN THE GULF FROM
NEAR 29N87W TO THE WESTERN TIP OF CUBA. LIGHT TO MODERATE WINDS
DOMINATE THE BASIN UNDER THIS PRES PATTERN ALONG WITH 1-3 FT
SEAS...EXCEPT 2-4 FT IN GULF W OF 96W. SCATTERED SHOWERS AND
ISOLATED TSTMS ARE ACCOMPANYING THE TROUGH. THE TROUGH WILL REACH
ALONG 89W THIS EVENING...ALONG 93W FRI EVENING...ALONG 96W SAT 
EVENING...PUSHING INLAND OVER TEXAS/MEXICO BY SUN. HIGH PRES WILL
BUILD BACK IN FROM THE NE IN THE WAKE OF THE TROUGH FOR THE END OF
THE WEEKEND INTO EARLY NEXT WEEK.

...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 
55W AND 64W...                    
MODEL PREFERENCE: HIGH CONFIDENCE. LATEST GFS/ECMWF BLENDED WITH
THE OFFICIAL FORECAST. NWPS USED FOR WAVE PARAMETERS.

LIGHT TO MODERATE WINDS ARE PREVAILING ACROSS THE MAJORITY OF THE
BASIN. A TROPICAL WAVE ALONG 73W IS HELPING TO ENHANCE WINDS IN
THE S CENTRAL CARIBBEAN TO FRESH LEVELS WITH AN ALTIMETER PASS
DOWNWIND OF THESE WINDS CATCHING 6 TO NEAR 8 FT SEAS. THIS WAVE
WILL MOVING THROUGH THE W CARIBBEAN THROUGH SAT...THEN INLAND OVER
CENTRAL AMERICA BY SUN. A SURFACE TROUGH IS ALONG 64W WITH A 1009
MB SURFACE LOW NEAR 14N64W. MODERATE TO FRESH WINDS ARE OCCURRING
WITHIN 120-180 NM OF THESE FEATURES AS WELL...WITH 5-7 FT SEAS N
OF 15N. THE LOW IS FORECAST TO DISSIPATE WHILE THE TROUGH REACHES
ALONG 70W THIS EVENING...76W FRI EVENING...AND 81W SAT EVENING.
SCATTERED SHOWERS AND ISOLATED TSTMS WILL ACCOMPANY THE
TROUGH/LOW. THE NEXT TROPICAL WAVE IS EXPECTED TO APPROACH THE
TROPICAL N ATLC WATERS EARLY NEXT WEEK.

...SW N ATLANTIC W OF 55W INCLUDING THE BAHAMAS...
MODEL PREFERENCE: HIGH CONFIDENCE. LATEST GFS/ECMWF BLENDED WITH
THE OFFICIAL FORECAST. NWPS USED FOR WAVE PARAMETERS.

THE NORTHERN PORTION OF A TROPICAL WAVE IS MOVING ACROSS THE TURKS
AND CAICOS EARLY THIS MORNING WITH SCATTERED SHOWERS AND TSTMS
WITHIN 60-120 NM EITHER SIDE OF THE WAVE. MODERATE TO FRESH
EASTERLY WINDS ARE ACROSS THE SOUTHERN HALF OF THE WATERS WITH
LIGHT TO MODERATE EASTERLY WINDS ACROSS THE NORTHERN HALF. SEAS
ARE 4-7 FT ACROSS THE SOUTHERN WATERS AND 3-5 FT ACROSS THE
NORTHERN WATERS. THESE WEATHER CONDITIONS ARE EXPECTED TO PERSIST
THROUGH THE FORECAST PERIOD IN THE WAKE OF THE TROPICAL WAVE WITH
A SERIES OF WEAK SURFACE TROUGHS MOVING FROM E TO W ACROSS THE
BASIN INTO EARLY NEXT WEEK.

$$

.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 LEWITSKY. NATIONAL HURRICANE CENTER.