000
AGXX40 KNHC 110610
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
210 AM EDT THU JUL 11 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/OFFICIAL BLEND WITH GOOD CONFIDENCE.

HIGH PRESSURE RIDGE PREVAILS OVER THE NORTHERN GULF OF MEXICO.
LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP AND BUOY
DATA DEPICT LIGHT WINDS OVER THE NORTHERN HALF OF THE GULF WITH
LIGHT TO GENTLE WINDS OVER THE SOUTHERN HALF OF THE GULF. SEAS
ARE IN THE 1-2 FT RANGE OVER THE NORTHERN HALF OF THE GULF WATERS
AND 2-3 FT OVER THE SOUTHERN GULF WATERS. THE HIGH PRESSURE RIDGE
WILL PREVAIL OVER THE NORTHERN GULF WATERS THROUGH FRI BEFORE
RETREATING EASTWARD. THIS WILL ENABLE A WEAK COLD FRONT TO MOVE
INTO THE NORTHWEST GULF WATERS LATE FRIDAY NIGHT WHERE IT WILL
STALL AND DISSIPATE THROUGH SAT. WEAK HIGH PRESSURE WILL THEN
BUILD BACK ACROSS THE GULF WATERS SUN AND MON.

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

TROPICAL STORM CHANTAL HAS WEAKENED AND OPENED INTO A TROPICAL
WAVE. THE MAIN CIRCULATION CENTER OF WHAT WAS TROPICAL STORM
CHANTAL HAS SPLIT FROM THE PARENT TROPICAL WAVE AND IS MOVING NW
ACROSS HAITI AND WILL MOVE INTO THE SW N ATLC WATERS AS A TROUGH
TODAY. THE PARENT TROPICAL WAVE WILL CONTINUE TO MOVE WESTWARD
OVER THE CARIBBEAN WATERS. SATELLITE DERIVED WINDS AND SEAS ALONG
WITH SHIP AND BUOY DATA DEPICT STRONG TO NEAR GALE FORCE WINDS
WITHIN 90 NM OF THE COAST OF COLOMBIA AND FRESH TO STRONG WINDS
OVER THE REMAINDER OF THE CENTRAL CARIBBEAN WATERS. GENTLE TO
MODERATE WINDS PREVAIL OVER THE WESTERN CARIBBEAN WITH MODERATE TO
FRESH WINDS PREVAILING OVER THE EASTERN CARIBBEAN WATERS. GENTLE
TO MODERATE WINDS PREVAIL OVER THE TROPICAL N ATLC WATERS. SEAS
ARE IN THE 8-11 FT RANGE OVER THE CENTRAL CARIBBEAN...4-6 FT OVER
THE EASTERN CARIBBEAN AND TROPICAL N ATLC WATERS WITH 3-5 FT SEAS
OVER THE WESTERN CARIBBEAN. THE TROPICAL WAVE OVER THE CENTRAL
CARIBBEAN WILL CONTINUE ON A WESTWARD TRACK MOVING INTO THE
WESTERN CARIBBEAN BY FRI...THEN SLOWLY MOVING THROUGH THE WESTERN
CARIBBEAN FRI AND SAT BEFORE MOVING W OF THE AREA BY SAT NIGHT.

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

A RIDGE OF HIGH PRESSURE PREVAILS OVER THE FAR NORTHERN WATERS.
THE REMNANT CIRCULATION OF TROPICAL STORM CHANTAL IS OVER HAITI
AND WILL MOVE INTO THE SW N ATLC WATERS AS A TROUGH TODAY. LATEST
SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP AND BUOY DATA
DEPICT FRESH TO STRONG WINDS NORTH OF HISPANIOLA AND CUBA AS A
RESULT OF A TIGHTER PRESSURE GRADIENT BETWEEN THE RIDGE AND THE
REMNANT CIRCULATION ASSOCIATED WITH CHANTAL. GENTLE TO MODERATE
WINDS PREVAIL OVER THE WESTERN AND SOUTHERN WATERS N OF PUERTO
RICO AND LIGHT TO GENTLE WINDS OVER THE NE WATERS. SEAS ARE IN THE
6-8 FT RANGE IN THE REGION OF FRESH TO STRONG WINDS...4-6 FT OVER
THE REMAINDER OF THE SOUTHERN WATERS AND 2-4 FT OVER THE NORTHERN
WATERS. SEAS ARE IN THE 2-4 FT RANGE W OF THE BAHAMAS. A
TROUGH...THE REMNANT CIRCULATION OF CHANTAL WILL CONTINUE ON A NW
TRACK AROUND THE PERIPHERY OF THE SUBTROPICAL HIGH. WINDS WILL BE
HIGHEST TO THE EAST OF THE TROUGH AS THE GRADIENT WILL BE TIGHTEST
BETWEEN THIS FEATURE AND THE RIDGE OF HIGH PRESSURE. A SURFACE
TROUGH OVER THE CENTRAL ATLANTIC WATERS IS ASSOCIATED WITH A TUTT
CELL. THE TUTT CELL WILL DRIFT WESTWARD OVER THE NEXT SEVERAL DAYS
WITH ASSOCIATED SURFACE TROUGH MOVING INTO THE FORECAST WATERS SAT
AND DRIFTING WESTWARD OVER THE FORECAST WATERS THIS WEEKEND.

$$

.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 AL. NATIONAL HURRICANE CENTER.