000
AGXX40 KNHC 301703
MIMATS

MARINE WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
100 PM EDT TUE SEP 30 2008

MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...
CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

A WEAK 1012 MB LOW PRES OVER THE SE GULF OF MEXICO IS CENTERED 
NEAR 26N83W WITH A TROUGH FROM THE LOW TO ANOTHER WEAK 1013 MB 
LOW NEAR 23N90W. THE LATEST GFS AND NAM HAVE BACKED OFF 
CONSIDERABLY ON THE WINDS WITH THE LOW. THE LOW IS FORECAST TO 
MOVE E OF THE GULF OF MEXICO LATER TONIGHT. A COLD FRONT WILL 
MOVE INTO THE GULF WED AND EXTEND FROM THE FLORIDA BIG BEND TO 
THE S TEXAS COAST LATE AND THEN ACROSS THE SE GULF THU THEN E OF 
THE AREA FRI. WEAK HIGH PRES BUILDS ACROSS THE NORTHERN GULF 
OVER THE WEEKEND.

ATLC SURFACE TROUGH EXTENDS FROM 31N75W TO 27N80W TO A LOW IN 
THE SE GULF OF MEXICO. AS MENTIONED ABOVE THE MODELS HAVE BACKED 
OFF ON THE GULF OF MEXICO LOW AND REALLY DOES NOT BRING IT INTO 
THE ATLC. HOWEVER THE GRADIENT BETWEEN THE TROUGH AND RIDGE IS 
STRONG ENOUGH TO SUPPORT 20-25 KT SW WINDS OVER THE NW PORTION 
OF THE AREA. COLD FRONT WILL MOVE OFF THE SE U.S. COAST LATE WED 
AND EXTEND FROM 31N75W TO CENTRAL FLORIDA THU AND BECOME 
STATIONARY FROM 31N73W STRAITS OF FLORIDA FRI AND SAT THEN MOVE 
N AS A WARM FRONT SUN.

CARIBBEAN TRADES 15-20 CONFINED TO E OF 75W WITH WIND 10 KT W OF 
75W. COLD FRONT WILL MOVE INTO THE NW CARIBBEAN WED AND 
EXTENDING FROM W CUBA TO BELIZE THU AND BECOME STATIONARY FRI 
AND SAT THEN DISSIPATE SUN.

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER DGS. TROPICAL PREDICTION CENTER.