000
AGXX40 KNHC 280551
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 AM EDT FRI SEP 28 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...
HIGH PRESSURE IS CENTERED N OF THE AREA OVER THE SE UNITED 
STATES WITH ANTICYCLONIC FLOW PREVAILING ACROSS THE GULF OF 
MEXICO. LOW PRES AND ASSOCIATED COLD FRONT ARE EXPECTED TO MOVE 
OFF THE TEXAS COAST EARLY SUN MORNING. THE LOW AND FRONT WILL 
SLOWLY SHIFT EASTWARD REACHING FROM THE FLORIDA PANHANDLE TO THE 
BAY OF CAMPECHE MON NIGHT WHERE IT WILL STALL. SLY WINDS WILL 
INCREASE TO 20-25 KT SUN AND MON.

SOUTHWEST NORTH ATLC S OF 31N W OF 65W...
WEAK HIGH PRESSURE PREVAILS N OF THE AREA. THE PRESSURE GRADIENT 
IS WEAK ACROSS THE AREA WITH WINDS 15 KT OR LESS AND SEAS 5 FT 
OR LESS...AND 1-2 FT SW OF THE BAHAMAS. SURFACE TROUGH OVER THE 
SE PORTION WILL MOVE W THROUGH FRI...THEN MOVE NW FRI NIGHT AND 
SAT WHILE DISSIPATING. HIGH PRES WILL BUILD OVER THE CENTRAL 
ATLC SAT THROUGH TUE. A WEAK COLD FRONT IS EXPECTED TO APPROACH 
THE FAR NW WATERS EARLY NEXT WEEK.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
TROPICAL WAVE OVER THE CENTRAL CARIBBEAN WATERS ALONG 77W.
THE TROPICAL WAVE WILL CONTINUE ITS WESTWARD TRACK MOVING  
SLOWLY ACROSS THE WESTERN CARIBBEAN THROUGH THE WEEKEND. TRADES 
WILL REMAIN WEAK THROUGH SAT. HIGH PRES IS EXPECTED TO BUILD IN 
THE CENTRAL ATLC SUN WHICH WILL RESULT IN A TIGHTER PRES 
GRADIENT OVER THE CENTRAL CARIBBEAN WITH THE TRADES INCREASING 
TO 15-20 KT.
 
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 DGS