ZCZC MIATCPAT3 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM GABRIELLE ADVISORY NUMBER 28 NATIONAL WEATHER SERVICE MIAMI FL 11 AM AST TUE SEP 18 2001 ...GABRIELLE LOSING TROPICAL CHARACTERISTICS OVER THE NORTH ATLANTIC SHIPPING LANES... AT 11 AM AST...1500Z...THE CENTER OF TROPICAL STORM GABRIELLE WAS LOCATED NEAR LATITUDE 39.5 NORTH...LONGITUDE 59.6 WEST OR ABOUT 305 MILES...490 KM...SOUTH OF SABLE ISLAND NOVA SCOTIA. GABRIELLE IS MOVING TOWARD THE NORTHEAST NEAR 18 MPH ...30 KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 24 HOURS WITH A GRADUAL INCREASE IN FORWARD SPEED. MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS EXPECTED DURING THE NEXT 24 HOURS...BUT GABRIELLE MAY TRANSITION TO AN EXTRATROPICAL LOW PRESSURE SYSTEM LATER TODAY OR WEDNESDAY AS IT INTERACTS WITH A COLD FRONT. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES ...465 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 990 MB...29.23 INCHES. REPEATING THE 11 AM AST POSITION...39.5 N... 59.6 W. MOVEMENT TOWARD...NORTHEAST NEAR 18 MPH. MAXIMUM SUSTAINED WINDS... 65 MPH. MINIMUM CENTRAL PRESSURE... 990 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 PM AST. FORECASTER STEWART/MAINELLI NNNN