ZCZC MIATCPAT1 ALL TTAA00 KNHC DDHHMM BULLETIN Hurricane Irma Advisory Number 11 NWS National Hurricane Center Miami FL AL112017 1100 PM AST Fri Sep 01 2017 ...IRMA FLUCTUATING IN INTENSITY BUT STILL A POWERFUL HURRICANE... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...19.1N 40.5W ABOUT 1405 MI...2260 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...967 MB...28.56 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the northern Leeward Islands should monitor the progress of this system. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 PM AST (0300 UTC), the center of Hurricane Irma was located near latitude 19.1 North, longitude 40.5 West. Irma is moving toward the west near 14 mph (22 km/h). A turn toward the west-southwest is expected on Saturday. Maximum sustained winds are near 115 mph (185 km/h) with higher gusts. Irma is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Fluctuations in strength, up or down, are possible during the next few days, but Irma is expected to remain a powerful hurricane through the weekend. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 70 miles (110 km). The estimated minimum central pressure is 967 mb (28.56 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. $$ Forecaster Zelinsky NNNN
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