ZCZC MIATCPAT4 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM IVAN ADVISORY NUMBER 7 NATIONAL WEATHER SERVICE MIAMI FL 11 PM AST MON SEP 21 1998 ...IVAN MOVING TOWARD THE NORTHWEST...FAR FROM LAND... AT 11 PM AST...0300Z...THE CENTER OF TROPICAL STORM IVAN WAS LOCATED NEAR LATITUDE 20.2 NORTH...LONGITUDE 36.6 WEST OR ABOUT 765 MILES...1230 KM...WEST-NORTHWEST OF THE CAPE VERDE ISLANDS. IVAN IS MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/HR...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE TONIGHT AND TUESDAY. MAXIMUM SUSTAINED WINDS ARE ESTIMATED NEAR 50 MPH... 85 KM/HR...WITH HIGHER GUSTS. SOME STRENGTHENING IF POSSIBLE DURING THE NEXT 24 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 85 MILES ...140 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB...29.53 INCHES. REPEATING THE 11 PM AST POSITION...20.2 N... 36.6 W. MOVEMENT TOWARD...NORTHWEST NEAR 12 MPH. MAXIMUM SUSTAINED WINDS... 50 MPH. MINIMUM CENTRAL PRESSURE...1000 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 AM AST...TUESDAY. MAYFIELD STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT4 AND WMO HEADER WTNT74 KNHC. NNNN