000
AGXX40 KNHC 031812
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
220 PM EDT WED OCT 3 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 DISSIPATING STATIONARY FRONT EXTENDS FROM THE FLORIDA BIG BEND 
REGION TO THE YUCATAN PENINSULA. LATEST SCATTEROMETER...SHIP... 
AND BUOY DATA DEPICT LIGHT TO GENTLE WINDS W OF THE FRONT AND 
GENTLE TO MODERATE WINDS E OF THE FRONT. SEAS ARE GENERALLY 2 TO 
4 FT E OF THE FRONT AND 1 TO 2 FT W OF THE FRONT. THE STATIONARY 
FRONT WILL DISSIPATE BY THU. HIGH PRESSURE WILL BUILD IN THE 
WAKE OF THE FRONT WITH GENTLE TO MODERATE ANTICYCLONIC WINDS 
PREVAILING ACROSS THE GULF WATERS THROUGH SAT. A COLD FRONT IS 
EXPECTED TO MOVE OFF THE TEXAS COAST SAT NIGHT WITH FRESHENED 
WINDS BEHIND THE FRONT. 

SOUTHWEST NORTH ATLC S OF 31N W OF 65W...
HIGH PRES IS CENTERED JUST E OF THE AREA WITH ASSOCIATED RIDGE 
PREVAILING ALONG 29/30N OVER THE FORECAST AREA. LATEST 
SCATTEROMETER...SHIP...AND BUOY DATA DEPICT LIGHT TO GENTLE 
WINDS N OF 23N AND MODERATE TO FRESH WINDS S OF 23N. SEAS ARE 
GENERALLY 3 TO 5 FT N OF 23N AND 5 TO 7 FT S OF 23N E OF THE 
BAHAMAS...AND 1 TO 2 FT N OF 23N AND 3 TO 5 FT S OF 23N W OF THE 
BAHAMAS. THE HIGH PRESSURE CENTER WILL SHIFT NW OVER THE NEXT 24 
TO 36 HOURS AS A TROUGH SHIFTS AROUND THE PERIPHERY OF THIS AREA 
OF HIGH PRESSURE INTO THE SW N ATLC WATERS. AN AREA OF LOW 
PRESSURE WILL FORM ALONG THE TROUGH BY FRI WITH FRESH WINDS 
PRIMARILY OVER THE NW QUADRANT OF THE LOW WHERE THE PRESSURE 
GRADIENT WILL BE TIGHTEST. THE AREA OF LOW PRESSURE WILL SLOWLY 
DRIFT WESTWARD OVER THE SOUTHERN PART OF THE FORECAST AREA THIS 
WEEKEND.  

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
HIGH PRESSURE IS CENTERED N OF THE AREA WITH A TROPICAL WAVE IN 
THE TROPICAL N ATLC WATERS. LATEST SCATTEROMETER...SHIP...AND 
BUOY DATA DEPICT MODERATE TO FRESH TRADEWINDS ACROSS MUCH OF THE 
AREA...WITH FRESH TO STRONG TRADES PREVAILING OVER THE CENTRAL 
CARIBBEAN WATERS. SEAS ARE GENERALLY 4 TO 7 FT...EXCEPT 7 TO 9 
FT OVER THE CENTRAL ATLANTIC WATERS. THE HIGH PRESSURE CENTER N 
OF THE AREA WILL SHIFT NW WITH THE ASSOCIATED SURFACE RIDGE 
WEAKENING FRIDAY. THIS WILL LOOSEN THE PRESSURE GRADIENT OVER 
THE CARIBBEAN WATERS AND DECREASE TRADEWINDS ACROSS THE AREA BY 
THIS WEEKEND. THE TROPICAL WAVE WILL MOVE INTO THE EASTERN 
CARIBBEAN BY THU...INTO THE CENTRAL CARIBBEAN FRI...AND THE 
WESTERN CARIBBEAN SAT AND SUN. 

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