ZCZC MIATCPAT3 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM GABRIELLE ADVISORY NUMBER 20 NATIONAL WEATHER SERVICE MIAMI FL 11 AM EDT SUN SEP 16 2001 ...GABRIELLE STRENGTHENS SLIGHTLY AS IT MOVES AWAY FROM THE U.S. EAST COAST... AT 11 AM EDT...1500Z...THE CENTER OF TROPICAL STORM GABRIELLE WAS LOCATED NEAR LATITUDE 31.9 NORTH...LONGITUDE 74.1 WEST OR ABOUT 255 MILES...415 KM...SOUTH-SOUTHEAST OF CAPE HATTERAS NORTH CAROLINA. THIS IS ALSO ABOUT 555 MILES...890 KM...WEST OF BERMUDA. GABRIELLE IS MOVING TOWARD THE EAST-NORTHEAST NEAR 20 MPH ...32 KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24 HOURS. GABRIELLE MAY BECOME EXTRATROPICAL DURING THE NEXT 12 TO 24 HOURS AS IT INTERACTS WITH A FRONTAL SYSTEM. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES ...280 KM FROM THE CENTER. AN AIR FORCE HURRICANE HUNTER AIRCRAFT EARLIER REPORTED THAT THE MINIMUM CENTRAL PRESSURE IS 995 MB...29.38 INCHES. REPEATING THE 11 AM EDT POSITION...31.9 N... 74.1 W. MOVEMENT TOWARD...EAST-NORTHEAST NEAR 20 MPH. MAXIMUM SUSTAINED WINDS... 65 MPH. MINIMUM CENTRAL PRESSURE... 995 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 PM EDT. FORECASTER STEWART NNNN