000
AGXX40 KNHC 300622
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
220 AM EDT FRI SEP 30 2011

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 SURFACE HIGH PRES CENTERED OVER THE NW GULF WILL DISSIPATE 
TODAY AS A COLD FRONT MOVES INTO THE NORTHERN GULF TONIGHT. THE 
FRONT WILL EXTEND FROM TAMPA BAY TO SE TX SAT THEN STALL FROM 
THE FL STRAITS TO THE YUCATAN PENINSULA SUN. HIGH PRES WILL 
BUILD IN WAKE OF FRONT SUPPORTING N-NE 15-20 KT WINDS OVER 
WATERS N OF 25N THROUGH SAT...BUT SPREADING S OVER E GULF 
THROUGH LATE SUN. MOSTLY NE 10-15 KT MON AND TUE. 

TROPICAL AND SW N ATLC S OF 31N W OF 55W...
HURCN OPHELIA CENTERED NE OF PUERTO RICO NEAR 22N62W WILL TRACK 
N WITH ASSOCIATED CONDITIONS AFFECTING DISCUSSION WATERS BETWEEN 
65W-55W. A FRONTAL TROUGH OVER THE NW WATERS WILL DRIFT S TODAY 
AND TONIGHT. A REINFORCING COLD FRONT WILL MOVE INTO THE NW 
WATERS LATER TODAY AND MERGE WITH THE REMNANTS OF THE INITIAL 
FRONT EARLY SAT. THE COMBINED FRONT WILL EXTEND FROM 31N73W TO 
THE CENTRAL BAHAMAS LATE SAT...AND STALL FROM BERMUDA TO THE SE 
BAHAMAS EARLY SUN AND GRADUALLY DISSIPATE THROUGH TUE. 

CARIBBEAN SEA...
AS OPHELIA CONTINUES MOVING N AND AWAY FROM AREA EASTERLY 15-20 
KT TRADES WILL RESUME OVER THE E CARIBBEAN SAT...SPREADING W 
OVER THE CENTRAL PORTION ON SUN...AND THE SW WATERS SUN NIGHT.  
NE WINDS WILL INCREASE TO 15 KT OVER THE NW CARIBBEAN BEHIND 
WEAKENING FRONTAL TROUGH ON SUN AND MON...THEN DIMINISH SOME ON 
TUE.

WARNINGS...
GULF OF MEXICO...
.NONE.

CARIBBEAN SEA...
.NONE.

TROPICAL N ATLC...
.AMZ087...HURCN WRNG N OF 19N BETWEEN 64W-59W. 

SW N ATLC...
.NONE.
          
FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER NELSON