000
AGXX40 KNHC 020659
MIMATS

MARINE WEATHER DISCUSSION        
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
300 AM EDT SAT MAY O2 2009
 
MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND 
SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

GULF OF MEXICO...
RIDGE AXIS OVER NE GULF AND BROAD TROUGHING OVER NRN MEXICO AND 
TEXAS WILL MAINTAIN MODERATE TO FRESH SE WINDS OVER GULF WATERS 
THROUGH TUE...WITH THE STRONGEST WINDS OF UP TO 25 KT OVER THE 
WESTERN GULF. THE STRONG COUNTER-CURRENT EASTERLY FLOW IN THE 
STRAITS OF FLORIDA WILL DIMINISH TO 15-20 KT DURING THIS 
WEEKEND. THE WINDS WILL DROP OFF FURTHER TO 10-15 KT LATE MON 
THROUGH WED. IN THE MEANTIME A WEAK COLD FRONT IS FORECAST TO 
MOVE OFF THE TEXAS COAST SUN NIGHT AND EXTEND FROM SE LOUISIANA 
TO THE DEEP SOUTH TEXAS BY LATE MON BEFORE RETREATING NORTHWARD 
ON TUE.

SW N ATLC...
THE HIGH PRES SYSTEM LOCATED WELL NE OF AREA NEAR 40N49W THAT 
HAS DRIVEN THE STRONG WINDS S OF 25N IN THE SW N ATLC THE LAST 
FEW DAYS WILL CONTINUE TO SHIFT NE KEEPING A RIDGE OVER THE 
FORECAST AREA. AS A RESULT...WINDS HAVE SLIGHTLY DIMINISHED TO 
15-20 KT IN THE BAHAMAS AND THE STRAITS OF FL. MEANWHILE A 
SURFACE TROUGH IN THE EASTERLIES CURRENTLY EXTENDING FROM 27N56W 
TO 17N60W IS DRIFTING WWD. AN EARLIER QSCAT PASS SHOWED VERY 
WELL THE WIND SHIFT ASSOCIATED WITH THE TROUGH. AN AREA OF 
SHOWERS WITH ISOLATED TSTMS IS NEAR THE NORTHERN END OF THE 
TROUGH AXIS WHICH IS FORECAST TO MOVE WWD THROUGH THE WEEKEND TO 
ALONG 67W/68W BY EARLY MON...AND DISSIPATE NEAR THE BAHAMAS TUE. 
SEAS WILL RANGE FROM 6 TO 9 FT BEHIND THE TROUGH AXIS. A NEW 
HIGH PRES CENTER IS FORECAST TO FORM WITHIN THE RIDGE NEAR 
35N54W ON TUE AND WED. THE COMBINATION OF THIS HIGH WITH LOWER 
PRESSURES AS A RESULT OF THE REMNANT TROUGH NEAR THE BAHAMAS 
WILL ONCE AGAIN BRING AN INCREASE IN ELY WINDS AND SEAS S OF 25N 
BUT E OF THE BAHAMAS. 

CARIBBEAN AND TROPICAL N ATLC...
A QSCAT PASS FROM AROUND 2335 UTC AND SFC DATA SHOWED AREAS OF 
20 KT EASTERLY WINDS OVER MOST OF THE CARIBBEAN WITH THE 
STRONGEST WINDS OF UP TO 25 KT NEAR THE COAST OF COLOMBIA AND 
ACROSS THE WINDWARD PASSAGE. THE QSCAT ALSO SHOWED A SHIFT OF 
WINDS FROM THE NE TO SE ACROSS THE N PORTION OF THE TROPICAL N 
ATLC ZONE AS A RESULT OF THE SURFACE TROUGH NOTED ABOVE. OVERALL 
WINDS WILL CONTINUE TO DIMINISH OVER THE WEEKEND WITH THE 
LIGHTEST WINDS OVER THE E CARIBBEAN SUN AND MON AS THE AREA IS 
SITUATED TO THE S OF THE WWD MOVING SFC TROUGH. ELY WINDS 
INCREASE TO 20 KT OVER THE TROPICAL N ATLC TUE AND WED DUE TO 
THE PRESENCE OF A 1032 MB SURFACE HIGH LOCATED N OF AREA NEAR 
35N57W. 

ATLC...
.NONE.. 

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

FORECASTER GR. TROPICAL PREDICTION CENTER.