ZCZC MIATCPAT5 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE HUMBERTO ADVISORY NUMBER 18 NATIONAL WEATHER SERVICE MIAMI FL 5 PM AST TUE SEP 25 2001 ...TENACIOUS HUMBERTO REFUSES TO WEAKEN... AT 5 PM AST...2100Z...THE CENTER OF HURRICANE HUMBERTO WAS LOCATED NEAR LATITUDE 39.5 NORTH... LONGITUDE 61.1 WEST OR ABOUT 310 MILES...500 KM...SOUTH OF SABLE ISLAND. HUMBERTO IS MOVING TOWARD THE NORTHEAST NEAR 12 MPH...19 KM/HR. A TURN TO THE EAST WITH A GRADUAL INCREASE IN FORWADR SPEED IS EXPECTED DURING THE NEXT DAY OR TWO. MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER GUSTS. SOME WEAKENING IS FORECAST DURING THE NEXT 24 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES... 35 KM... FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 990 MB...29.23 INCHES. REPEATING THE 5 PM AST POSITION...39.5 N... 61.1 W. MOVEMENT TOWARD...NORTHEAST NEAR 12 MPH. MAXIMUM SUSTAINED WINDS... 75 MPH. MINIMUM CENTRAL PRESSURE... 990 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 11 PM AST. FORECASTER AVILA NNNN