000 AGXX40 KNHC 021800 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT SAT JUN 2 2007 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. UPPER LEVELS... WATER VAPOR IMAGERY SHOWS A MID/UPPER LEVEL SHORT WAVE TROUGH ACROSS THE GULF OF MEXICO...WITH THE AXIS EXTENDING SWD FROM SE LOUISIANA TO THE YUCATAN PENINSULA. THIS TROUGH WILL BEGIN TO LIFT NE SLOWLY BLOCKED BY A PERSISTENT RIDGE ALONG 74W. A DEEP LAYERED TROUGH HANGS ON NEAR 50W WITH THE BASE OF THE TROUGH NOW REACHING 18N. AN UPPER LEVEL HIGH OVER E CUBA EXTENDS A RIDGE N INTO THE W ATLANTIC. SURFACE... TROPICAL STORM BARRY MADE LANDFALL LATE THIS MORNING IN THE VICINITY OF TAMPA BAY IN THE FLORIDA WEST COAST. SATELLITE IMAGERY...RADAR...SURFACE DATA AND INFORMATION FROM AN AIR FORCE RECONNAISSANCE PLANE INDICATE THAT THE CENTER OF BARRY HAS BECOME ELONGATED. THE WINDS NEAR THE CENTER HAVE DIMINISHED TO BELOW TROPICAL STORM STRENGTH AND THE CYCLONE HAS BEEN DOWNGRADED TO TROPICAL DEPRESSION STATUS. AS A RESULT...TROPICAL STORM WARNINGS HAVE BEEN DROPPED ACROSS THE GULF OF MEXICO...BUT A GALE WARNING REMAINS IN EFFECT IN THE ATLC N OF 27N W OF 76W. BARRY IS EXPECTED TO BECOME FULLY EXTRATROPICAL LATER TODAY AFTER CROSSING FLORIDA. THE EXTRATROPICAL TRANSITION HAS BEEN SUGGESTED BY MOST OF THE GLOBAL MODELS. BARRY IS MOVING NNE AT 20 KT...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE WITH AN ADDITIONAL INCREASE IN FORWARD SPEED DURING THE NEXT 24 HOURS. ITS ASSOCIATED CONDITIONS WILL SHIFT N OF AREA EARLY SUN. AN OLD FRONTAL TROUGH EXTENDS ALONG 31N45W 22N53W. SCATTERED SHOWERS ARE SEEN AHEAD OF THE TROUGH AXIS. SOME CYCLOGENESIS IS TAKING SHAPE OVER MID ATLC WITH THIS OLD TROUGH THAT CONTINUES TO PRODUCE MODERATE TO STRONG WINDS. EARLIER QUIKSCAT PASS SHOWED WINDS OF 20 TO 25 KT ON EITHER SIDE OF TROUGH AXIS. THE ATLC RIDGE WILL BUILD W ALONG 23N WITH A SURGE IN THE TRADES MON THROUGH WED. WARNINGS... ATLANTIC... AMZ080...TROPICAL STORM WARNING N OF 27N W OF 76W. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER GR