000
AGXX40 KNHC 301801
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
201 PM EDT WED OCT 30 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: LATEST GFS BLENDED WITH OFFICIAL FORECAST. 
MWW3 USED FOR WAVE PARAMETERS. HIGH CONFIDENCE.

HIGH PRES CENTERED OVER THE SE UNITED STATES EXTENDS A RIDGE SW
ACROSS THE NORTHERN GULF WATERS. LATEST SATELLITE DERIVED WINDS
AND SEAS AS WELL AS SHIP...BUOY...AND CMAN DATA DEPICT FRESH TO
STRONG SE RETURN FLOW OVER THE NW GULF WATERS WITH MODERATE TO
FRESH ANTICYCLONIC WIND FLOW PREVAILING ACROSS THE REMAINDER OF
THE GULF WATERS. SEAS OVER THE FAR NW GULF WATERS ARE IN THE 6-8
FT RANGE. SEAS ARE IN THE 4-6 FT RANGE OVER THE REMAINDER OF THE
GULF WATERS EXCEPT THE FAR NE GULF WHERE SEAS IN THE 2-4 FT RANGE
PREVAIL. THE HIGH PRESSURE CENTER AND ASSOCIATED RIDGE WILL SHIFT
EASTWARD THROUGH THU WHICH WILL LOOSEN THE PRESSURE GRADIENT AND
DIMINISH WINDS OVER THE GULF. THE EASTWARD SHIFT OF THE RIDGE WILL
ENABLE A COLD FRONT TO MOVE OFF THE TEXAS COAST INTO THE NW GULF
WATERS BY THU NIGHT. THE FRONT WILL EXTEND FROM SE LOUISIANA TO SE
TEXAS EARLY FRI...FROM N FLORIDA TO NE MEXICO EARLY SAT...AND FROM
S FLORIDA TO THE SW GULF EARLY SUN. HIGH PRESSURE WILL BUILD IN
THE WAKE OF THE FRONT.

...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 65W...

MODEL PREFERENCE: LATEST GFS BLENDED WITH OFFICIAL FORECAST. 
MWW3 USED FOR WAVE PARAMETERS. HIGH CONFIDENCE.

A TROPICAL WAVE IS MOVING THROUGH THE WESTERN CARIBBEAN WITH A
SURFACE TROUGH OVER THE TROPICAL N ATLC WATERS. LATEST SATELLITE
DERIVED WINDS AND SEAS AS WELL AS SHIP...BUOY...AND CMAN DATA
DEPICT MODERATE TO FRESH TRADES OVER THE CENTRAL AND WESTERN
CARIBBEAN...AND GENTLE TO MODERATE TRADES OVER THE EASTERN
CARIBBEAN AND TROPICAL N ATLC. SEAS ARE IN THE 5-7 FT RANGE OVER
THE CENTRAL AND WESTERN CARIBBEAN...4-6 FT RANGE OVER THE EASTERN
CARIBBEAN...AND 6-8 FT IN NE TO E SWELL IN THE TROPICAL N ATLC
WATERS. THE TROPICAL WAVE WILL CONTINUE MOVING WESTWARD OVER THE
WESTERN CARIBBEAN WATERS WHILE WEAKENING THROUGH THU. THE TROUGH
WILL MOVE INTO THE EASTERN CARIBBEAN WATERS OVERNIGHT THEN INTO
THE CENTRAL CARIBBEAN WATERS BY EARLY FRI WHERE IT WILL STALL BY
SAT. BROAD TROUGHING WILL THEN PREVAIL OVER THE CENTRAL CARIBBEAN
THROUGH THE WEEKEND.

...SW N ATLANTIC INCLUDING THE BAHAMAS...

MODEL PREFERENCE: LATEST GFS BLENDED WITH OFFICIAL FORECAST. 
MWW3 USED FOR WAVE PARAMETERS. HIGH CONFIDENCE.

A COLD FRONT EXTENDS ACROSS THE SE WATERS. LATEST SATELLITE
DERIVED WINDS AND SEAS AS WELL AS SHIP...BUOY...AND CMAN DATA
DEPICT FRESH WINDS OVER THE SW WATERS WITH GENTLE TO MODERATE
WINDS PREVAILING OVER THE REMAINDER OF THE WATERS. SEAS ARE IN THE
4-6 FT RANGE ACROSS MUCH OF THE BASIN. THE COLD FRONT WILL SHIFT E
OF THE FORECAST AREA BY THU. A SECOND COLD FRONT WILL MOVE INTO
THE NW WATERS THIS COMING WEEKEND. WINDS WILL STRENGTHEN AHEAD OF
THE FRONT BY SAT AFTERNOON...AND BEHIND THE FRONT THROUGH SUN. THE
FRONT WILL EXTEND OVER THE FAR NW WATERS SAT AFTERNOON...THEN
EXTEND FROM NEAR BERMUDA TO THE FLORIDA STRAITS BY SUN AFTERNOON. 
 
$$

.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.