000 AGXX40 KNHC 310740 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 330 AM EDT THU MAR 31 2011 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... DEEPENING LOW PRES AT 29N86W TRACKS ACROSS N FLORIDA/SE GEORGIA INTO NW CORNER OF SW N ATLC TODAY. STATIONARY FRONT ASSOCIATED WITH LOW PRES BEGIN MOVING E WITH SCATTERED TO NUMEROUS TSTMS AFFECTING FLORIDA PENINSULA AND GULF ZONE E OF 85W WITH STRONG NW WINDS AND SEAS TO 8 FT. HIGH PRES BUILD ACROSS CENTRAL AND E GULF FRI NIGHT THROUGH MON PROMPTING FRESH RETURN FLOW W OF 90W WHICH STRENGTHENS BY MON. CARIBBEAN AND TROP N ATLC W OF 55W... FRESH TO STRONG TRADES OVER EASTERN AND CENTRAL CARIBBEAN AND FRESH SE WINDS OVER THE NW CARIBBEAN RESULT FROM OSCILLATIONS OF CENTRAL ATLC HIGH PRES. WEAK SURFACE TROUGH ALONG GREATER ANTILLES MOVE NW BEFORE BECOMING DIFFUSE FRI. COLD FRONT ENTER WESTERN CARIBBEAN FRI DIMINISHING TRADES ACROSS WRN CARIBBEAN... BUT BECOMES DIFFUSE SW OF CUBA ON SAT. FRESH TO STRONG WINDS PERSIST ACROSS TROP N ATLC THROUGH CENTRAL CARIBBEAN THROUGH MON AS HIGH PRES REMAINS N OF AREA. WEAK 1007 MB LOW PRES OVER NW COLOMBIA MAINTAINS STRONG NE BREEZE ALONG COASTAL SECTIONS W OF 73W WITH SEAS TO 9 FT. WINDS DIMINISH THU AS FRONT ENTER NW ZONE...BUT RETURN SUN AS FRONT BECOMES DIFFUSE. FRESH TO STRONG WINDS PERSIST FROM TROP N ATLC THROUGH CENTRAL CARIBBEAN THROUGH SUN AS HIGH PRES REMAINS N OF AREA. SW N ATLC... MAIN ISSUE CONTINUES TO BE PROBABILITY OF WINDS REACHING GALE FORCE N OF 30N IN THE WATERS BETWEEN N FLORIDA AND BERMUDA TONIGHT. THE DEEPENING LOW PRES CENTER OVER NE GULF CROSSING N FLORIDA EMERGE ON NW CORNER OF SW N ATLC WITH A VENGEANCE DEEPENING FURTHER OVER THE GULFSTREAM WITH SEVERE WEATHER VERY LIKELY. EVEN IF SUSTAINED GALE FORCE WINDS DO NOT OCCUR...THE NUMEROUS AND STRONG TSTMS ARE EXPECTED TO PRODUCE TEMPORARY DANGEROUS WINDS AND SEAS N OF 28N W OF 75W. TRAILING COLD FRONT MOVE OFF N FLORIDA COAST TONIGHT WITH MODEL GUIDANCE STOPPING SHORT OF GALE FORCE WINDS...BUT STRENGTH OF UPPER LEVEL SHORTWAVE IS SUCH THAT SHORT-LIVED INSTANCES MAY BE FELT N OF 30N FROM N OF 30N NEAR 76W TONIGHT. COLD FRONT WILL STALL AND BECOME DIFFUSE FROM BERMUDA TO S FLORIDA LATE FRI...UNTIL SECOND REINFORCING FRONT MERGES WITH IT MOVE E. MERGED FRONT EXTEND FROM 28N65W TO CENTRAL FLORIDA EARLY SUN. GLOBAL MODELS AGAIN HINT AT NEAR GALE FORCE WINDS AHEAD OF FRONT...BUT BY THEN UPPER LEVEL SUPPORT HAS MOVED TO HIGHER LATITUDES. FRONT BECOMES DIFFUSE EARLY MON FROM 24N65W TO 27N74W. HIGH PRES BUILDS OVER AREA N OF 28N MON WITH FRESH TRADES S OF 22N AND MODERATE TO FRESH SOUTHERLY RETURN FLOW N OF NORTHERN BAHAMAS LATE MON. WARNINGS.. ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER WALLY BARNES