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ZCZC MIATCPAT5 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM DENNIS ADVISORY NUMBER 9 NATIONAL WEATHER SERVICE MIAMI FL 11 PM AST WED AUG 25 1999 ...DENNIS DRIFTING WEST-NORTHWEST WITH LITTLE CHANGE IN STRENGTH... A HURRICANE WATCH AND A TROPICAL STORM WARNING REMAIN IN EFFECT FOR THE CENTRAL BAHAMAS...INCLUDING CAT...EXUMAS...LONG...RUM CAY...AND SAN SALVADOR ISLANDS. A HURRICANE WATCH REMAINS IN EFFECT FOR THE NORTHWESTERN BAHAMAS...INCLUDING ABACOS...ANDROS ...BERRY...BIMINI...ELEUTHERA...GRAND BAHAMA...AND NEW PROVIDENCE ISLANDS. A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE SOUTHEASTERN BAHAMAS AND THE TURKS AND CAICOS ISLANDS. RESIDENTS ALONG THE SOUTHEAST COAST OF THE UNITED STATES...PRIMARILY THE CAROLINAS...SHOULD CLOSELY MONITOR THE PROGRESS OF DENNIS. AT 11 PM AST...0300Z...THE CENTER OF TROPICAL STORM DENNIS WAS LOCATED NEAR LATITUDE 23.7 NORTH...LONGITUDE 72.7 WEST OR ABOUT 315 MILES...505 KM...EAST-SOUTHEAST OF NASSAU IN THE BAHAMAS. DENNIS IS DRIFTING TOWARD THE WEST NORTHWEST...AND THIS MOTION IS EXPECTED TO CONTINUE TONIGHT AND THURSDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/HR...WITH HIGHER GUSTS. SOME STRENGTHENING IS FORECAST AND DENNIS IS EXPECTED TO BECOME A HURRICANE DURING THE NEXT 24 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM ...MAINLY TO THE EAST OF THE CENTER. THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE U.S. AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT WAS 998 MB...29.47 INCHES. REPEATING THE 11 PM AST POSITION...23.7 N... 72.7 W. MOVEMENT TOWARD...DRIFTING WEST-NORTHWEST. MAXIMUM SUSTAINED WINDS... 65 MPH. MINIMUM CENTRAL PRESSURE... 998 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 2 AM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 5 AM AST...THURSDAY. GUINEY STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT5 AND WMO HEADER WTNT75 KNHC. NNNN