ZCZC MIATCPAT4 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE IVAN ADVISORY NUMBER 15 NATIONAL WEATHER SERVICE MIAMI FL 11 PM AST WED SEP 23 1998 ...HURRICANE IVAN MOVING NORTHWEST OVER THE EASTERN ATLANTIC... AT 11 PM AST...0300Z...THE CENTER OF HURRICANE IVAN WAS LOCATED NEAR LATITUDE 30.9 NORTH...LONGITUDE 40.9 WEST OR ABOUT 875 MILES ...1415 KM...SOUTHWEST OF THE AZORES ISLANDS. IVAN IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE EARLY WEDNESDAY WITH A GRADUAL TURN TOWARD THE NORTH LATER WEDNESDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH 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 200 MILES...325 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB...29.15 INCHES. REPEATING THE 11 PM AST POSITION...30.9 N... 40.9 W. MOVEMENT TOWARD...NORTHWEST NEAR 12 MPH. MAXIMUM SUSTAINED WINDS... 75 MPH. MINIMUM CENTRAL PRESSURE... 987 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 AM AST...THURSDAY. GUINEY STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC. NNNN