000
AGXX40 KNHC 180622
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
220 AM EDT TUE SEP 18 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...
LOW PRES OVER THE NW GULF OF MEXICO HAS SHIFTED INTO SE 
LOUISIANA MON EVENING. A COLD FRONT EXTENDS FROM SE LOUISIANA TO 
THE SW GULF WATERS. LATEST SCATTEROMETER...SHIP...AND BUOY DATA 
DEPICT FRESH WINDS N OF 27N E OF THE FRONT WITH MODERATE WINDS 
PREVAILING ACROSS THE REST OF THE GULF WATERS N OF 25N WHILE S 
OF 25N GENTLE TO MODERATE WINDS PREVAILED. SEAS WERE 3 TO 5 FT 
OVER THE NE GULF WATERS...AND 1 TO 3 FT OVER THE REMAINDER OF 
THE GULF WATERS. THE FRONT WILL MOVE EASTWARD AND EXTEND FROM 
THE FLORIDA BIG BEND REGION TO THE YUCATAN PENINSULA LATE TUE 
NIGHT WHERE IT WILL STALL AND DISSIPATE THROUGH THU NIGHT AS 
HIGH PRES BUILDS IN FROM THE N THROUGH SAT. 

SOUTHWEST NORTH ATLC S OF 31N W OF 55W...
HIGH PRESSURE PRES IS CENTERED N OF THE AREA WITH RIDGE 
EXTENDING SE ACROSS THE FORECAST AREA. THIS HAS HELPED MAINTAIN 
SE RETURN FLOW OVER THE WESTERN PORTION OF THE FORECAST AREA. 
LATEST SCATTEROMETER...SHIP...AND BUOY DATA DEPICT FRESH SE TO S 
WINDS PREVAIL OVER THE NE PART OF THE FORECAST AREA WITH GENTLE 
TO MODERATE WINDS PREVAILING ACROSS THE REMAINDER OF THE 
FORECAST AREA. SEAS AREA GENERALLY 4 TO 6 FT OVER THE NW PART OF 
THE AREA AND 4 TO 5 FT OVER THE REMAINDER OF THE WATERS E OF THE 
BAHAMAS...AND 1 TO 3 FT W OF THE BAHAMAS. THE HIGH PRESSURE 
CENTER...AND ASSOCIATED RIDGE WILL SHIFT EASTWARD ENABLING A 
WEAK COLD FRONT TO MOVE INTO THE FAR NW PART OF THE FORECAST 
AREA ON WED. THE FRONT WILL STALL THERE AND DISSIPATE BY FRI. 

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
GENTLE TO MODERATE TRADE WINDS PREVAIL ACROSS THE CARIBBEAN 
WATERS AND THE TROPICAL N ATLC WATERS...EXCEPT FOR MODERATE TO 
FRESH WINDS ACROSS THE SOUTHERN CENTRAL CARIBBEAN WATERS. A 
TROPICAL WAVE IS IN THE EASTERN CARIBBEAN WATERS. THE WAVE WILL 
MOVE INTO THE CENTRAL CARIBBEAN LATE TONIGHT AND AND WED...THEN 
MOVE ACROSS THE WESTERN CARIBBEAN THU AND FRI...REACHING THE 
YUCATAN PENINSULA FRI. A SECOND TROPICAL WAVE WILL REACH THE 
TROPICAL N ATLC WATERS THU...AND MOVE INTO THE E CARIBBEAN 
WATERS FRI...AND THE CENTRAL CARIBBEAN WATERS SAT. 

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