ZCZC MIATCPAT1 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM ALEX ADVISORY NUMBER 17 NATIONAL WEATHER SERVICE MIAMI FL 11 AM AST FRI JUL 31 1998 ...ALEX MOVING SLOWLY...LESS ORGANIZED... AT 11 AM AST...1500Z...THE POORLY DEFINED CENTER OF TROPICAL STORM ALEX WAS RELOCATED BY VISIBLE SATELLITE IMAGES NEAR LATITUDE 15.5 NORTH...LONGITUDE 49.5 WEST OR ABOUT 725 MILES...1165 KM...EAST OF THE LEEWARD ISLANDS. ALEX HAS BEEN MOVING LITTLE DURING THE PAST FEW HOURS BUT IS EXPECTED TO MOVE TOWARD THE WEST NEAR 12 MPH...19 KM/HR...TODAY WITH A GRADUAL TURN TO THE WEST-NORTHWEST THEREAFTER. MAXIMUM SUSTAINED WINDS REMAIN NEAR 50 MPH... 85 KM/HR...WITH HIGHER GUSTS IN SQUALLS NORTH AND EAST OF THE CENTER. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 145 MILES...230 KM MAINLY TO THE NORTH OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB...29.53 INCHES. REPEATING THE 11 AM AST POSITION...15.5 N... 49.5 W. MOVEMENT TOWARD...WEST 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 PM AST. AVILA STRIKE PROBABILITIES ASSOCIATED WITH THIS ADVISORY NUMBER CAN BE FOUND UNDER AFOS HEADER MIASPFAT1 AND WMO HEADER WTNT71 KNHC. NNNN