000 AGXX40 KNHC 281644 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1240 PM EDT WED MAY 28 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO...WEAK SURFACE HIGH PRES IS PARKED OVER NORTH FLORIDA...MAINTAINING GENERALLY LIGHT TO MODERATE SE TO S WINDS OVER THE WATERS OF THE NORTHERN GULF. MEANWHILE SHIP REPORTS NORTH OF CUBA AND C-MAN REPORTS FROM THE FLORIDA KEYS INDICATE MODERATE TO FRESH EAST FLOW IN PLACE. THIS IS THE RESULT OF A TIGHTENING GRADIENT BETWEEN THE WEAK HIGH PRES TO THE NORTH...AND BROAD LOW PRES NEAR NICARAGUA. AN ASCAT PASS FROM EARLIER THIS MORNING ALSO INDICATED UP TO 20 KT EAST WINDS ON THE WEST COAST OF YUCATAN. LITTLE CHANGE IS EXPECTED OVER THE NEXT COUPLE OF DAYS. CARIBBEAN AND TROPICAL NORTH ATLANTIC...1007 MB LOW PRES IS DEVELOPING ALONG THE CARIBBEAN COAST OF NICARAGUA...IN TANDEM WITH A 1006 MB LOW ON THE PACIFIC NICARAGUAN/COSTA RICAN COASTS. A TROPICAL WAVE ALONG 80W IS ANALYZED MOVING INTO THE BROAD LOW. WINDS WILL INCREASE STARTING LATE TODAY OVER MUCH OF THE CENTRAL AND WESTERN CARIBBEAN...BETWEEN THE LOW PRES AND WEAK HIGH PRES NORTH OF THE AREA. FRESH TO STRONG EAST TO SOUTHEAST WINDS ARE NOTED IN MOST GLOBAL MODELS THROUGH THE WEEKEND FROM COLOMBIA TO JAMAICA TO THE YUCATAN CHANNEL. FURTHER EAST...A TROPICAL WAVE IS ANALYZED NEAR 64W. WINDS ARE INCREASING TO 20 KT IN THE LESSER ANTILLES AND BUOYS OVER THE TROPICAL ATLANTIC...AS HIGH PRES OVER THE WESTERN ATLC BUILDS IN BEHIND THE WAVE. LOOKING AHEAD...AN UPPER TROUGH FROM NEAR BERMUDA TO THE GULF OF HONDURAS WILL SHIFT WEST THROUGH EARLY NEXT WEEK...RESULTING IN UPPER DIVERGENCE DIMINISHING SOMEWHAT...AND W TO NW DEEP LAYER SHEAR OVER THE AREA. SW N ATLC...WEAK 1020 MB HIGH PRES IS CENTERED BETWEEN THE CAROLINAS AND BERMUDA. FURTHER SOUTH...WEAK TROUGHING IS NOTED BETWEEN BERMUDA AND THE NORTHERN BAHAMAS...AND FROM THE SOUTHERN BAHAMAS THROUGH CENTRAL CUBA. LIGHT TO MODERATE WINDS PERSIST SOUTH OF THE HIGH THROUGH THE WEEKEND...EXCEPT MODERATE TO FRESH TRADES CAN BE EXPECTED JUST NORTH OF PUERTO RICO AND HISPANIOLA...BETWEEN THE WEAK HIGH PRES TO THE NORTH...AND TROPICAL WAVES MOVING THROUGH THE CARIBBEAN. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER CHRISTENSEN. TROPICAL PREDICTION CENTER.