ZCZC MIATCPAT4 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE IVAN ADVISORY NUMBER 25 NATIONAL WEATHER SERVICE MIAMI FL 11 AM AST SAT SEP 26 1998 THE HURRICANE IS NOW ACCELERATING EASTWARD WELL NORTH OF THE AZORES ISLANDS. HURRICANE AND TROPICAL STORM CONDITIONS ARE NOT LIKELY TO SPREAD OVER THESE ISLANDS. AT 11 AM AST...1500Z...THE CENTER OF HURRICANE IVAN WAS LOCATED NEAR LATITUDE 40.4 NORTH...LONGITUDE 31.2 WEST OR ABOUT 280 MILES...440 KM...WEST-NORTHWEST OF LAJES IN THE AZORES ISLANDS. IVAN IS MOVING TOWARD THE EAST NEAR 35 MPH...56 KM/HR...AND THIS MOTION IS EXPECTED TO INCREASE IN THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 85 MPH...140 KM/HR...WITH HIGHER GUSTS. SOME WEAKENING IS FORECAST DURING THE NEXT 24 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES... 45 KM... FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 975 MB...28.79 INCHES. REPEATING THE 11 AM AST POSITION...40.4 N... 31.2 W. MOVEMENT TOWARD...EAST NEAR 35 MPH. MAXIMUM SUSTAINED WINDS... 85 MPH. MINIMUM CENTRAL PRESSURE... 975 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 PM AST. GROSS STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC. NNNN