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| #451823 (Received by flhurricane at: 7:58 AM 21.Aug.2011) TCPAT4 BULLETIN TROPICAL STORM IRENE INTERMEDIATE ADVISORY NUMBER 3A NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011 800 AM AST SUN AUG 21 2011 ...IRENE MOVING INTO THE NORTHEASTERN CARIBBEAN SEA... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...16.5N 62.0W ABOUT 35 MI...55 KM WNW OF GUADELOUPE ABOUT 45 MI...70 KM SSW OF ANTIGUA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 21 MPH...33 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF BARBADOS HAS DISCONTINUED THE TROPICAL STORM WARNING FOR DOMINICA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * SOUTHERN COAST OF THE DOMINICAN REPUBLIC FROM CABO ENGANO WESTWARD TO THE HAITI BORDER A HURRICANE WATCH IS IN EFFECT FOR... * PUERTO RICO...VIEQUES...AND CULEBRA A TROPICAL STORM WARNING IS IN EFFECT FOR... * PUERTO RICO...U.S. VIRGIN ISLANDS...VIEQUES...AND CULEBRA * SABA...ST. EUSTATIUS...ST. MAARTEN...ST. MARTIN...AND ST. BARTHELEMY * ANTIGUA...BARBUDA...ST. KITTS...NEVIS...ANGUILLA...MONTSERRAT * BRITISH VIRGIN ISLANDS * NORTHERN COAST OF THE DOMINICAN REPUBLIC FROM THE HAITI BORDER EASTWARD TO NORTH OF CABO ENGANO A TROPICAL STORM WATCH IS IN EFFECT FOR... * HAITI A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 24 HOURS. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24 TO 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 36 TO 48 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 800 AM AST...1200 UTC...THE CENTER OF TROPICAL STORM IRENE WAS LOCATED NEAR LATITUDE 16.5 NORTH...LONGITUDE 62.0 WEST. IRENE IS MOVING TOWARD THE WEST NEAR 21 MPH...33 KM/H...AND A MOTION TOWARD THE WEST OR WEST-NORTHWEST AT A SLOWER RATE OF SPEED IS EXPECTED DURING THE NEXT 48 HOURS. ON THE FORECAST TRACK...IRENE WILL PASS NEAR PUERTO RICO TONIGHT OR EARLY MONDAY AND APPROACH THE DOMINICAN REPUBLIC ON MONDAY. MAXIMUM SUSTAINED WINDS ARE ESTIMATED TO BE NEAR 50 MPH...85 KM/H...WITH HIGHER GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT DAY OR SO...AND IRENE COULD BECOME A HURRICANE ON MONDAY. TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 150 MILES...240 KM FROM THE CENTER...MAINLY TO THE NORTH OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1005 MB...29.68 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN THE LEEWARD ISLANDS TODAY. TROPICAL STORM CONDITIONS ARE EXPECTED TO BEGIN THIS AFTERNOON IN THE VIRGIN ISLANDS AND PUERTO RICO...AND IN THE DOMINICAN REPUBLIC BY MONDAY AFTERNOON. HURRICANE CONDITIONS ARE POSSIBLE OVER PUERTO RICO...VIEQUES...AND CULEBRA TONIGHT...AND ARE EXPECTED OVER THE DOMINICAN REPUBLIC BY LATE MONDAY. RAINFALL...IRENE IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 4 TO 7 INCHES IN THE LEEWARD ISLANDS...PUERTO RICO AND THE VIRGIN ISLANDS...WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 10 INCHES. TOTAL RAINFALL ACCUMULATIONS OF 6 TO 10 INCHES ARE POSSIBLE ACROSS THE DOMINICAN REPUBLIC AND HAITI...WITH ISOLATED MAXIMUM AMOUNTS OF 20 INCHES POSSIBLE. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES IN AREAS OF STEEP TERRAIN. STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 3 TO 5 FEET ABOVE NORMAL TIDE LEVELS ALONG THE SOUTHERN COAST OF THE DOMINICAN REPUBLIC. A STORM SURGE OF 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS IS EXPECTED ALONG THE IMMEDIATE COAST IN THE TROPICAL STORM WARNING AREA. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER KIMBERLAIN/PASCH |
