000 AGXX40 KNHC 240743 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 345 AM EDT SUN JUN 24 2012 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... BASED ON AIRCRAFT RECONNAISSANCE...SATELLITE...AND BUOY DATA THE AREA OF LOW PRESSURE IN THE GULF OF MEXICO WAS CLASSIFIED AS TROPICAL STORM DEBBY AT 23/2100 UTC. SEVERAL SCATTEROMETER PASSES SHOW A BROAD CYCLONIC CIRCULATION COVERING MOST OF THE GULF WATERS WITH THE MAJORITY OF WEATHER AND WINDS ASSOCIATED WITH DEBBY CONFINED TO E SIDE OF THE STORM. SHIP ZCDJ2 LOCATED ABOUT 80 NM EAST OF THE CENTER AND NEAR NOAA BUOY 42003 REPORTED 38 KT WINDS AT 24/00Z. THE BUOY HAS REPORTED SEAS TO AROUND 13-14 FT. THE GFS MODEL CONTINUES TO CARRY THE STORM EASTWARD TOWARD FLORIDA WHILE THE REMAINDER OF THE GLOBAL MODELS CARRY THE LOW WESTWARD TOWARD TEXAS. A SLOW NORTHWARD MOTION OF DEBBY IS FORECAST TODAY DUE TO A BLOCKING RIDGE TO THE NORTH OF SYSTEM ACROSS THE CENTRAL AND EASTERN UNITED STATES...FOLLOWED BY A GRADUAL WESTWARD TURN TONIGHT OR MONDAY MORNING. ON THE FORECAST TRACK...THE CENTER OF DEBBY WILL BE MOVING OVER THE NORTHERN GULF OF MEXICO DURING THE NEXT FEW DAYS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 150 NM...MAINLY NORTHEAST AND EAST OF THE CENTER. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... NARROW AND WEAK ATLC RIDGE IS NOTED N OF THE AREA. UNDER THE INFLUENCE OF THIS SYSTEM...FRESH TRADE WINDS CONTINUE TO BLOW ACROSS PARTS OF THE E AND CENTRAL CARIBBEAN WHILE FRESH SE TO S WIND FLOW IS OBSERVED OVER THE NW CARIBBEAN. THE MOST RECENT ASCAT PASS PROVIDE OBSERVATIONS OF THESE 20 KT WINDS THROUGH THE NW CARIBBEAN AND THE YUCATAN CHANNEL. LIGHT TO MODERATE TRADES WILL PREVAIL ACROSS THE TROPICAL N ATLC THROUGH SUN. WITH SLOW WWD MOTION OF THE LOW IN GULF OF MEXICO MON-WED...LITTLE CHANGES EXPECTED IN OVERALL CONDITIONS ACROSS THE CARIB...WITH SEAS OF 8-9 FT ACROSS THE SOUTH-CENTRAL CARIBBEAN. A TROPICAL WAVE IS EXPECTED TO ENTER THE TROPICAL N ATLC MON AND INTO THE CARIBBEAN TUE THROUGH THU WITH A MODEST INCREASE IN WINDS AND SEAS AND MUCH SAL BEHIND. SOUTHWEST NORTH ATLC S OF 31N W OF 55W... MAINLY LIGHT WINDS DOMINATE THE AREA UNDER THE INFLUENCE OF THE WEAK ATLC RIDGE. PRES GRADIENT BETWEEN DEBBY AND THE ATLC RIDGE WILL RESULT IN SE TO S WINDS NEAR 20 KT WITH ISOLATED SPOTS TO 25 KT ACROSS STRAITS OF FLORIDA UP FLORIDA COAST AND THROUGH THE BAHAMAS TODAY AND MON. NOTE...GRIDDED MARINE OUTPUT IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE (LOWER CASE) GULF OF MEXICO... .TROPICAL STORM WARNING GMZ013-GMZ15-GMZ19. CARIBBEAN SEA... .NONE. SW N ATLANTIC... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT WWW.HURRICANES.GOV/MARINE $$ FORECASTER GR