000
AGXX40 KNHC 160542
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
145 AM EDT SUN SEP 16 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 SURFACE TROUGH IS LOCATED IN THE WESTERN GULF WATERS. LATEST 
SCATTEROMETER...SHIP...BUOY...AND CMAN DATA DEPICT LIGHT TO 
MODERATE WINDS WITH SEAS GENERALLY 3 FT OR LESS ACROSS THE GULF 
WATERS. A WEAK SURFACE LOW MAY DEVELOP ALONG THE TROUGH OVER THE 
WESTERN GULF WATERS BY LATE TONIGHT. THE TROUGH/LOW IS EXPECTED 
TO TRACK INTO THE SOUTHEASTERN UNITED STATES ON MONDAY. A COLD 
FRONT IS FORECAST TO MOVE OFF INTO THE WESTERN GULF WATERS ON 
MON MORNING...THEN TRACK ACROSS THE GULF WATERS AND E OF THE 
AREA THU. ASIDE FROM A WIND SHIFT ASSOCIATED WITH THE 
FRONT...WINDS ARE EXPECTED TO REMAIN MODERATE ACROSS THE 
MAJORITY OF THE GULF. 

SOUTHWEST NORTH ATLC S OF 31N W OF 55W...
A SURFACE TROUGH EXTENDS FROM 31N61W TO 25N70W. LATEST  
SCATTEROMETER...SHIP AND BUOY DATA INDICATE LIGHT TO MODERATE 
WINDS ACROSS THE AREA. SEAS OVER THE WESTERN HALF OF THE 
FORECAST AREA ARE GENERALLY 4 TO 6 FT...WITH SEAS OF 2 TO 3 FT W 
OF THE BAHAMAS. SWELLS ASSOCIATED WITH HURRICANE NADINE ARE 
MOVING THROUGH NE PART OF THE FORECAST AREA WITH SEAS TO 6-8 FT. 
SEAS WILL START TO SUBSIDE TODAY AS NADINE CONTINUES TO MOVE 
FURTHER FROM THE FORECAST AREA. THE SURFACE TROUGH IS FORECAST 
TO TRACK EAST OF THE AREA BY TONIGHT AS HIGH PRESSURE BUILDS 
ACROSS THE FORECAST REGION. WINDS WILL VEER TO THE S AND SW OVER 
THE NW PORTION OF THE AREA MON THROUGH WED AS HIGH PRES MOVES 
EWD ACROSS THE W ATLC. A COLD FRONT WILL MOVE INTO THE NW PART 
OF THE AREA WED WHERE IT IS FORECAST TO STALL.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
BASED ON THE LATEST SCATTEROMETER...SHIP AND BUOY DATA...LIGHT 
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 
WILL MOVE INTO THE TROPICAL N ATLC WATERS TODAY...REACH THE 
EASTERN CARIBBEAN MONDAY...MOVE THROUGH THE CENTRAL CARIBBEAN 
WATERS TUE AND WED...THEN INTO THE WESTERN CARIBBEAN THU. A 
SECOND TROPICAL WAVE WILL REACH THE TROPICAL N ATLC WATERS THU. 

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