000
AGXX40 KNHC 020655
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
300 AM EDT FRI NOV 02 2012

MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA 
AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

GULF OF MEXICO...
A FRONTAL BOUNDARY EXTENDS FROM CENTRAL FLORIDA INTO THE CENTRAL 
GULF OF MEXICO. ONE AREA OF HIGH PRESSURE PREVAILING OVER THE 
SOUTH CENTRAL GULF WATERS WILL DISSIPATE TODAY WITH A SECOND 
HIGH PRESSURE AREA CENTERED OVER THE NW GULF WATERS. LATEST 
SCATTEROMETER...SHIP...AND BUOY STATIONS DEPICT GENTLE TO LIGHT 
WINDS WITH SEAS 3 FT OR LESS PREVAIL ACROSS THE GULF OF MEXICO. 
WHILE THE AREA OF HIGH PRESSURE OVER THE SOUTH CENTRAL WATERS 
DISSIPATES TODAY...THE HIGH PRESSURE CENTER IN THE NW GULF 
WATERS WILL SHIFT EASTWARD...REACHING THE FLORIDA BIG BEND 
REGION TONIGHT. THIS WILL ENABLE THE COLD FRONT TO CONTINUE 
SHIFTING SOUTHWARD...REACHING THE FLORIDA STRAITS TONIGHT. 
SURFACE RIDGE AND ANTICYCLONIC FLOW WILL THEN PREVAIL ACROSS THE 
GULF WATERS THROUGH SUN. THE RIDGE WILL SHIFT SOUTHWARD ENABLING 
A COLD FRONT TO MOVE INTO THE NORTHERN GULF WATERS ON MON NIGHT. 
A SECONDARY SURGE WILL THEN HELP THE FRONT TO RAPIDLY PUSH THE 
SOUTHWARD MOVING ACROSS THE REMAINING GULF WATERS TUE.  
          
CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
A TROUGH MOVING THROUGH THE WESTERN CARIBBEAN IS ACCOMPANIED BY 
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. LATEST 
SCATTEROMETER...SHIP...AND BUOY DATA DEPICT MODERATE TRADEWIND 
FLOW PREVAILS ACROSS THE CARIBBEAN AND TROPICAL N ATLC WATERS. 
SEAS AREA GENERALLY 3 TO 5 FT OVER THE CARIBBEAN WATERS AND 6 TO 
8 FT IN NW SWELL OVER THE TROPICAL N ATLC WATERS. A WEAK AREA OF 
LOW PRESSURE IS FORECAST TO DEVELOP IN THE SW CARIBBEAN WATERS 
ASSOCIATED WITH THIS TROUGH. THE LOW PRESSURE AREA IS EXPECTED 
TO REMAIN WEAK AND DISSIPATE LATE IN THE WEEKEND. 

SOUTHWEST NORTH ATLC S OF 31N W OF 55W...
COMPLEX WEATHER PATTERN EXISTS WITH TWO FRONTAL BOUNDARIES 
EXTENDING ACROSS THE AREA. ONE EXTENDS FROM BERMUDA TO THE 
NORTHERN BAHAMAS WITH THE SECOND ONE OVER THE NW PART OF THE 
AREA. LATEST SCATTEROMETER...SHIP...AND BUOY DATA DEPICT FRESH 
TO STRONG WINDS OVER THE NORTHERN PART OF THE AREA W OF THE 
FRONTAL BOUNDARIES...AND GENTLE TO MODERATE WINDS OVER THE 
SOUTHERN PART OF THE AREA. SEAS ARE GENERALLY 8 TO 11 FT IN THE 
NORTHERN PART OF THE AREA AND 5 TO 7 FT ACROSS THE REMAINDER OF 
THE AREA E OF THE BAHAMAS...AND 1 TO 3 FT W OF THE BAHAMAS. A 
SURGE BEHIND THE WESTERN FRONT WILL SHIFT IT RAPIDLY EASTWARD TO 
MERGE WITH THE FRONT TO THE EAST ON SAT. THE FRONT WILL THEN 
DISSIPATE THROUGH SUN AS CONDITIONS W OF THE FRONT IMPROVE. 
SURFACE HIGH PRESSURE WILL MOVE ACROSS THE NORTHERN PART OF THE 
FORECAST AREA IN THE WAKE OF THE FRONT THIS WEEKEND WITH 
ASSOCIATED RIDGE PREVAILING ACROSS THE N PART OF THE AREA 
THROUGH TUE. THE RIDGE WILL THEN SHIFT EASTWARD ENABLING ANOTHER 
COLD FRONT TO MOVE INTO THE NW WATERS TUE NIGHT.  
 
NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE

GULF OF MEXICO...
.NONE.

CARIBBEAN SEA AND TROPICAL N ATLC...
.NONE.

SW N ATLANTIC...
.NONE.
  
FOR ADDITIONAL INFORMATION PLEASE VISIT
WWW.HURRICANES.GOV/MARINE

$$
FORECASTER AL