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| #900987 (Received by flhurricane at: 4:35 PM 31.Aug.2017) TCPAT1 BULLETIN Hurricane Irma Advisory Number 6 NWS National Hurricane Center Miami FL AL112017 500 PM AST Thu Aug 31 2017 ...IRMA BECOMES A CATEGORY 3 HURRICANE OVER THE EASTERN ATLANTIC... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...17.3N 34.8W ABOUT 720 MI...1160 KM W OF THE CABO VERDE ISLANDS ABOUT 1780 MI...2865 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...967 MB...28.56 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 PM AST (2100 UTC), the center of Hurricane Irma was located near latitude 17.3 North, longitude 34.8 West. Irma is moving toward the west-northwest near 12 mph (19 km/h). This motion is expected to continue today, followed by a westward turn on Saturday, and a west-southwestward motion by Sunday. Maximum sustained winds have increased to 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, both up and down, are possible, but Irma is expected to remain a powerful hurricane for several days. Hurricane-force winds extend outward up to 15 miles (30 km) from the center and tropical-storm-force winds extend outward up to 80 miles (130 km). The estimated minimum central pressure is 967 mb (28.56 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Blake |
