000 WTNT33 KNHC 021453 TCPAT3 BULLETIN TROPICAL STORM HANNA ADVISORY NUMBER 23 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082008 1100 AM AST TUE SEP 02 2008 ...HANNA PRODUCING HEAVY RAINS OVER THE SOUTHEASTERN BAHAMAS AND HISPANIOLA... AT 11 AM AST...1500 UTC...A TROPICAL STORM WARNING HAS BEEN ISSUED FOR THE NORTHERN COAST OF HAITI FROM LE MOLE ST NICHOLAS EASTWARD TO THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. A HURRICANE WARNING REMAINS IN EFFECT FOR THE CENTRAL BAHAMAS...THE SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS. INTERESTS IN EASTERN CUBA...THE NORTHWESTERN BAHAMAS...AND THE FLORIDA PENINSULA SHOULD MONITOR THE PROGRESS OF HANNA. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 1100 AM AST...1500Z...THE CENTER OF TROPICAL STORM HANNA WAS LOCATED NEAR LATITUDE 21.0 NORTH...LONGITUDE 73.5 WEST OR ABOUT 20 MILES... 35 KM...WEST-SOUTHWEST OF GREAT INAGUA ISLAND AND ABOUT 370 MILES...600 KM...SOUTHEAST OF NASSAU. HANNA IS MOVING TOWARD THE WEST-SOUTHWEST NEAR 6 MPH...9 KM/HR. A TURN TOWARD THE NORTHWEST IS EXPECTED TONIGHT AND WEDNESDAY WITH AN INCREASE IN FORWARD SPEED. ON THE FORECAST TRACK...HANNA WILL MOVE OVER THE SOUTHEASTERN BAHAMAS TODAY AND INTO THE CENTRAL BAHAMAS TONIGHT AND WEDNESDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH...110 KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24 HOURS. AN AIR FORCE RECONNAISSANCE AIRCRAFT WILL INVESTIGATE HANNA THIS AFTERNOON. SOME STRENGTHENING IS POSSIBLE ON WEDNESDAY NIGHT AND THURSDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM FROM THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB...29.15 INCHES. HANNA IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 4 TO 8 INCHES... WITH ISOLATED AMOUNTS OF 12 INCHES...OVER THE SOUTHEASTERN BAHAMAS ...THE TURKS AND CAICOS ISLANDS...AND EASTERN CUBA. RAINFALL TOTALS OF 6 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF UP TO 20 INCHES...ARE POSSIBLE OVER HISPANIOLA WHERE THESE RAINS COULD CAUSE LIFE-THREATENING MUDSLIDES AND FLASH FLOODING. COASTAL STORM SURGE FLOODING OF 3 TO 5 FEET ABOVE NORMAL TIDE LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED IN AREAS OF ONSHORE FLOW WITHIN THE HURRICANE 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. REPEATING THE 1100 AM AST POSITION...21.0 N...73.5 W. MOVEMENT TOWARD...WEST-SOUTHWEST NEAR 6 MPH. MAXIMUM SUSTAINED WINDS...70 MPH. MINIMUM CENTRAL PRESSURE...987 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 200 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500 PM AST. $$ FORECASTER RHOME/KNABB