000
AGXX40 KNHC 191852 CCA
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
300 PM EDT TUE MAY 19 2009

LOW PRES IS FORECAST TO DEVELOP OVER THE SE GULF OF MEXICO THIS 
EVENING. THIS COMBINED WITH HIGH PRES TO THE N OF THE AREA WILL 
TIGHTEN THE GRADIENT OVER THE NE GULF TONIGHT WITH WINDS 
EXPECTED TO INCREASE TO GALE FORCE. THE LOW DRIFTS W AND 
MEANDERS ACROSS THE MIDDLE LATE WED THROUGH FRI...THEN DRIFTS TO 
THE N SAT AND APPROACHES THE SE LOUISIANA COAST SUN. WINDS 
DECREASE TO BELOW GALE FORCE WED NIGHT. AS THE LOW WEAKENS ELY 
15-20 KT ACROSS THE NE GULF AND LIGHT WINDS ELSEWHERE BY THE END 
OF THE WEEK THEN BELOW 20 KT ACROSS THE ENTIRE GULF OVER THE 
WEEKEND.

ATLC STATIONARY FRONT FROM 31N78W TO 27N80W WILL DISSIPATE LATER 
TONIGHT. GALE FORCE WINDS BEHIND THE FRONT. SURFACE TROUGH NEAR 
THE BAHAMAS FROM 25N77W TO 23N70W. AS THE FRONT DISSIPATES LATER 
TONIGHT HIGH PRES STRENGTHENS N OF THE AREA...THIS COMBINED WITH 
THE TROUGH WILL CONTINUE GALE FORCE WINDS OVER THE NW PORTION OF 
THE AREA THROUGH WED NIGHT. BRISK ELY WINDS CONTINUE N OF AROUND 
27N W OF 70W THROUGH THE END OF THE WEEK. GFS DEVELOPS ANOTHER 
LOW OVER THE SOUTHERN BAHAMAS THU THEN MOVES NE FRI AND WEAKENS 
TO A TROUGH FROM 29N65W TO SOUTHERN BAHAMAS SAT AND SUN.

TRADE WIND FLOW WILL CONTINUE TO BE DISRUPTED IN THE WESTERN 
CARIBBEAN...W OF 70W...THROUGH THE FORECAST PERIOD BY THE LOW IN 
THE GULF OF MEXICO. E OF 70W TRADES WILL CONTINUE IN THE 15-20 
KT RANGE THROUGH THE WEEKEND.

WARNINGS
ATLC...
.GALE WARNING N OF 27N W OF 75W...AMZ080.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.GALE WARNING N OF 28N E OF 85W...GMZ086.

FORECASTER DGS. TROPICAL PREDICTION CENTER.