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#535778 (Received by flhurricane at: 4:41 AM 21.Aug.2012) TCPAT4 BULLETIN TROPICAL DEPRESSION NINE ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 500 AM AST TUE AUG 21 2012 ...NINTH DEPRESSION OF THE SEASON FORMS EAST OF THE LESSER ANTILLES...TROPICAL STORM WARNINGS AND WATCHES ISSUED... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...15.2N 51.2W ABOUT 715 MI...1150 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 20 MPH...32 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE METEOROLOGICAL SERVICE OF BARBADOS HAS ISSUED A TROPICAL STORM WARNING FOR DOMINICA. THE GOVERNMENT OF FRANCE HAS ISSUED A TROPICAL STORM WARNING FOR GUADELOUPE...DESIRADE...LES SAINTES...MARIE GALANTE...AND ST. MARTIN. THE GOVERNMENT OF ANTIGUA HAS ISSUED A TROPICAL STORM WARNING FOR ST. KITTS...NEVIS...ANTIGUA...MONTSERRAT...AND BARBUDA. THE GOVERNMENT OF CURACAO HAS ISSUED A TROPICAL STORM WATCH FOR SABA...ST. EUSTATIUS...AND ST. MAARTEN. THE GOVERNMENT OF ANTIGUA HAS ISSUED A TROPICAL STORM WATCH FOR THE BRITISH VIRGIN ISLANDS. A TROPICAL STORM WATCH HAS BEEN ISSUED FOR PUERTO RICO...VIEQUES... CULEBRA...AND THE U.S. VIRGIN ISLANDS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * DOMINICA *GUADELOUPE...DESIRADE...LES SAINTES...MARIE GALANTE...AND ST. MARTIN * ST. KITTS...NEVIS...ANTIGUA...MONTSERRAT...AND BARBUDA A TROPICAL STORM WATCH IS IN EFFECT FOR... * SABA...ST. EUSTATIUS...AND ST. MAARTEN * BRITISH VIRGIN ISLANDS * PUERTO RICO...VIEQUES...CULEBRA...AND THE U.S. VIRGIN ISLANDS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 AM AST...0900 UTC...THE CENTER OF TROPICAL DEPRESSION NINE WAS LOCATED NEAR LATITUDE 15.2 NORTH...LONGITUDE 51.2 WEST. THE DEPRESSION IS MOVING TOWARD THE WEST NEAR 20 MPH...32 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS. ON THE FORECAST TRACK...THE CYCLONE SHOULD MOVE THROUGH THE SOUTHERN LEEWARD ISLANDS AND NORTHERN WINDWARD ISLANDS WEDNESDAY AFTERNOON...AND EMERGE OVER THE EASTERN CARIBBEAN SEA BY THURSDAY MORNING. MAXIMUM SUSTAINED WINDS ARE NEAR 35 MPH...55 KM/H...WITH HIGHER GUSTS. STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS...AND THE DEPRESSION IS EXPECTED TO BECOME A TROPICAL STORM LATER TODAY. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB...29.74 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO REACH THE WARNING AREA BY WEDNESDAY AFTERNOON...MAKING OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. RAINFALL...TOTAL RAIN ACCUMULATIONS OF 4 TO 8 INCHES ARE POSSIBLE OVER THE NORTHERN WINDWARD ISLANDS AND THE LEEWARD ISLANDS. SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL AFFECT THE WINDWARD ISLANDS AND THE LEEWARD ISLANDS DURING THE NEXT COUPLE OF DAYS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR MORE INFORMATION. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...800 AM AST. NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER STEWART |