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#213431 (Received by flhurricane at: 2:03 AM 04.Sep.2008) TCPAT3 BULLETIN TROPICAL STORM HANNA INTERMEDIATE ADVISORY NUMBER 29A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082008 200 AM AST THU SEP 04 2008 ...HANNA HEADING NORTHWESTWARD JUST EAST OF THE BAHAMAS... A TROPICAL STORM WARNING REMAINS IN EFFECT FOR ALL OF THE BAHAMAS AND FOR THE TURKS AND CAICOS ISLANDS. A HURRICANE WATCH MAY BE REQUIRED FOR A PORTION OF THE SOUTHEASTERN UNITED STATES COAST LATER THIS MORNING AND INTERESTS IN THIS AREA SHOULD MONITOR THE PROGRESS OF HANNA. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 200 AM AST...0600Z...THE CENTER OF TROPICAL STORM HANNA WAS LOCATED NEAR LATITUDE 23.7 NORTH...LONGITUDE 72.4 WEST OR ABOUT 325 MILES...525 KM...EAST-SOUTHEAST OF NASSAU IN THE BAHAMAS. HANNA IS MOVING TOWARD THE NORTHWEST NEAR 13 MPH...20 KM/HR. A GENERAL NORTHWESTWARD MOTION IS EXPECTED DURING THE NEXT COUPLE OF DAYS...WITH A GRADUAL INCREASE IN FORWARD SPEED. ON THIS TRACK...THE CENTER OF HANNA SHOULD BE MOVING JUST EAST OF THE CENTRAL AND NORTHWESTERN BAHAMAS TODAY AND TONIGHT...AND SHOULD BE NEAR THE SOUTHEAST COAST OF THE UNITED STATES FRIDAY OR FRIDAY NIGHT. MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/HR...WITH HIGHER GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT COUPLE OF DAYS...AND HANNA COULD REGAIN HURRICANE STRENGTH BY FRIDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES...465 KM...MAINLY TO THE NORTH OF THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB...29.21 INCHES. HANNA IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 4 TO 8 INCHES... WITH MAXIMUM ISOLATED AMOUNTS OF 12 INCHES OVER THE BAHAMAS. ISOLATED AMOUNTS OF 15 INCHES ARE POSSIBLE IN PUERTO RICO. TOTALS OF 6 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 15 INCHES...ARE POSSIBLE OVER HISPANIOLA...WHERE THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. MODERATE TO LOCALLY HEAVY RAINFALL IS POSSIBLE ALONG THE EAST COAST OF FLORIDA BY FRIDAY MORNING. COASTAL STORM SURGE FLOODING OF 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS CAN BE EXPECTED IN AREAS OF ONSHORE WINDS WITHIN THE TROPICAL STORM WARNING AREA. SWELLS FROM HANNA ARE EXPECTED TO INCREASE THE RISK OF DANGEROUS RIP CURRENTS ALONG PORTIONS OF THE SOUTHEASTERN UNITED STATES COAST DURING THE NEXT COUPLE OF DAYS. ISOLATED TORNADOES AND WATERSPOUTS ARE POSSIBLE OVER PUERTO RICO AND THE ADJACENT WATERS EARLY THIS MORNING. REPEATING THE 200 AM AST POSITION...23.7 N...72.4 W. MOVEMENT TOWARD...NORTHWEST NEAR 13 MPH. MAXIMUM SUSTAINED WINDS...65 MPH. MINIMUM CENTRAL PRESSURE...989 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 500 AM AST. $$ FORECASTER KNABB |