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Hurricane Michael Public Advisory Number 8
2018-10-08 16:38:20| National Hurricane Center (Atlantic)
Issued at 1100 AM EDT Mon Oct 08 2018 000 WTNT34 KNHC 081438 TCPAT4 BULLETIN Hurricane Michael Advisory Number 8 NWS National Hurricane Center Miami FL AL142018 1100 AM EDT Mon Oct 08 2018 ...MICHAEL BECOMES A HURRICANE AND CONTINUED STRENGTHENING EXPECTED... ...HEAVY RAINFALL AND STRONG WINDS SPREADING ACROSS WESTERN CUBA... ...RISK OF LIFE-THREATENING STORM SURGE...HEAVY RAINFALL...AND DANGEROUS WINDS INCREASING FOR THE NORTHEASTERN GULF COAST... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...21.2N 84.9W ABOUT 50 MI...80 KM S OF THE WESTERN TIP OF CUBA ABOUT 140 MI...220 KM ENE OF COZUMEL MEXICO MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...N OR 10 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...982 MB...29.00 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The Cuban province of Pinar del Rio A Tropical Storm Warning is in effect for... * The Cuban province of the Isle of Youth * The coast of Mexico from Tulum to Cabo Catoche, including Cozumel A Storm Surge Watch is in effect for... * Navarre Florida to Anna Maria Island Florida, including Tampa Bay A Hurricane Watch is in effect for... * Alabama-Florida border to Suwannee River Florida A Tropical Storm Watch is in effect for... * Suwannee River to Anna Maria Island Florida, including Tampa Bay * Alabama-Florida border to the Mississippi-Alabama border A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning. A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere across the southeastern United States should monitor the progress of Michael. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM EDT (1500 UTC), the center of Hurricane Michael was located near latitude 21.2 North, longitude 84.9 West. Michael is moving toward the north near 7 mph (11 km/h). A northward motion at a slightly faster forward speed is expected through Tuesday night, followed by a northeastward motion on Wednesday and Thursday. On the forecast track, the center of Michael will move northward near the western tip of Cuba this afternoon and into the southeastern Gulf of Mexico by tonight. Michael will move across the eastern Gulf of Mexico Tuesday and Tuesday night, and is expected to move inland over the Florida Panhandle or Florida Big Bend area on Wednesday, and then move northeastward across the southeastern United States Wednesday night and Thursday. Data from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 75 mph (120 km/h) with higher gusts. Steady to rapid strengthening is forecast during the next day or so, and Michael is forecast to become a major hurricane by Tuesday or Tuesday night. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure based on Air Force Reserve reconnaissance data is 982 mb (29.00 inches). HAZARDS AFFECTING LAND ---------------------- STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water has the potential to reach the following heights above ground if peak surge occurs at the time of high tide... Indian Pass to Crystal River...8-12 ft Okaloosa/Walton County Line to Indian Pass...5-8 ft Crystal River to Anclote River...4-6 ft Anclote River to Anna Maria Island including Tampa Bay...2-4 ft Navarre to Okaloosa/Walton County Line...2-4 ft WIND: Hurricane conditions will spread across the far western part of the Cuban province of Pinar del Rio this afternoon and evening. Tropical storm conditions are expected across the remainder of the warning areas in Cuba and the Yucatan Peninsula later today. Hurricane conditions are possible within the hurricane watch area along the U.S. Gulf Coast by Wednesday, with tropical storm conditions possible by Tuesday night or early Wednesday. Tropical storm conditions are possible within the tropical storm watch area by Tuesday night or early Wednesday. RAINFALL: Michael is expected to produce the following rainfall amounts through the weekend... Western Cuba...4 to 8 inches, with isolated maximum amounts of 12 inches. This rainfall could lead to life-threatening flash floods and mudslides. Florida Panhandle and Big Bend into the Carolinas...4 to 8 inches, with isolated maximum amounts of 12 inches. This rainfall could lead to life threatening flash floods. Florida Peninsula, Florida Keys, portions of the Mid-Atlantic States, and the southern New England coast...2 to 4 inches with local amounts of 6 inches. This rainfall could lead to life- threatening flash floods. Yucatan Peninsula...1 to 2 inches. SURF: Swells generated by Michael are affecting the south coast of Cuba and the east coast of the Yucatan Peninsula. Swells are expected to begin affecting the coast of the eastern and northern Gulf of Mexico during the next day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM EDT. Next complete advisory at 500 PM EDT. $$ Forecaster Brown
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