000
AGXX40 KNHC 111747
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
147 PM 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.
BUOY DATA INDICATES 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. THE HIGH PRESSURE
RIDGE WILL CONTINUE OVER THE NORTHERN GULF THROUGH FRI BEFORE
MOVING EASTWARD. THIS WILL ENABLE A WEAK COLD FRONT TO MOVE INTO
THE NORTHWEST GULF LATE FRI 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 ALONG 77W. THE TROPICAL WAVE WILL CONTINUE TO MOVE W OVER
THE CARIBBEAN. ELY WINDS 20-25 KT ACROSS THE CENTRAL CARIBBEAN. 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 NORTHERN PORTION OF THE
AREA. THE REMNANT TROUGH OF TROPICAL STORM CHANTAL IS OVER THE
SOUTHERN BAHAMAS. A TIGHTER PRESSURE GRADIENT BETWEEN THE RIDGE
AND THE REMNANT TROUGH ASSOCIATED WITH CHANTAL IS PRODUCING ELY
WINDS 20-25 KT E OF THE TROUGH TO 71W. THE REMNANT TROUGH OF
CHANTAL WILL CONTINUE ON A NW TRACK AROUND THE PERIPHERY OF THE
SUBTROPICAL HIGH. THE TROUGH WILL DISSIPATE SAT AND WINDS WILL
DECREASE. 

$$

.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.