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#901160 (Received by flhurricane at: 4:50 AM 02.Sep.2017) TCPAT1 BULLETIN Hurricane Irma Advisory Number 12 NWS National Hurricane Center Miami FL AL112017 500 AM AST Sat Sep 02 2017 ...IRMA CONTINUES TO FLUCTUATE IN STRENGTH BUT REMAINS A POWERFUL HURRICANE... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...19.0N 41.8W ABOUT 1320 MI...2120 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...970 MB...28.65 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 500 AM AST (0900 UTC), the center of Hurricane Irma was located near latitude 19.0 North, longitude 41.8 West. Irma is moving toward the west near 14 mph (22 km/h). A west-southwest motion is expected during the next couple of days. Maximum sustained winds are near 110 mph (175 km/h) with higher gusts. Fluctuations in strength, up or down, are possible during the next couple of days, but Irma is expected to remain a powerful hurricane into early next week. 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 970 mb (28.65 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Cangialosi |