000 WTNT33 KNHC 312348 TCPAT3 BULLETIN TROPICAL STORM HANNA INTERMEDIATE ADVISORY NUMBER 15A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082008 800 PM AST SUN AUG 31 2008 ...HANNA CONTINUES TO MOVE WESTWARD.... A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE CENTRAL AND SOUTHEASTERN BAHAMAS...AND THE TURKS AND CAICOS ISLANDS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 800 PM AST...0000Z...THE CENTER OF TROPICAL STORM HANNA WAS LOCATED NEAR LATITUDE 23.5 NORTH...LONGITUDE 71.6 WEST OR ABOUT 140 MILES...225 KM...NORTH-NORTHWEST OF GRAND TURK ISLAND. HANNA IS MOVING TOWARD THE WEST NEAR 9 MPH...15 KM/HR. HANNA IS EXPECTED TO CONTINUE WESTWARD TONIGHT WITH A DECREASE IN FORWARD SPEED...THEN TURN TOWARD THE SOUTHWEST ON TUESDAY. ON THE FORECAST TRACK...HANNA WILL GRADUALLY APPROACH THE SOUTHERN AND CENTRAL BAHAMAS OVER THE NEXT COUPLE OF DAYS. MAXIMUM SUSTAINED WINDS ARE NEAR 45 MPH...75 KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM FROM THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 997 MB...29.44 INCHES. RAINFALL AMOUNTS OF 2 TO 4 INCHES IS POSSIBLE IN THE TURKS AND CAICOS ISLANDS. 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 800 PM AST POSITION...23.5 N...71.6 W. MOVEMENT TOWARD...WEST NEAR 9 MPH. MAXIMUM SUSTAINED WINDS...45 MPH. MINIMUM CENTRAL PRESSURE...997 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 PM AST. $$ FORECASTER BROWN