ZCZC MIATCPAT5 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM IAN ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL102016 500 AM AST TUE SEP 13 2016 ...IAN CHANGES LITTLE IN STRENGTH OVER THE CENTRAL ATLANTIC... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...24.0N 51.7W ABOUT 980 MI...1580 KM ESE OF BERMUDA MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 AM AST (0900 UTC), the center of Tropical Storm Ian was located near latitude 24.0 North, longitude 51.7 West. Ian is moving toward the north-northwest near 9 mph (15 km/h). A faster north-northwestward to northward motion is expected during the next couple of days. Maximum sustained winds remain near 45 mph (75 km/h) with higher gusts. Some slight strengthening is forecast during the next 48 hours. Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Cangialosi NNNN