Issued at 500 PM EDT Mon Sep 26 2022
000 WTNT34 KNHC 262100 CCA TCPAT4 BULLETIN Hurricane Ian Advisory Number 15...Corrected NWS National Hurricane Center Miami FL AL092022 500 PM EDT Mon Sep 26 2022 Corrected header and next advisory time ...IAN CONTINUES TO QUICKLY INTENSIFY... ...CONDITIONS IN WESTERN CUBA TO DETERIORATE THIS EVENING AND TONIGHT WITH SIGNIFICANT WIND AND STORM SURGE IMPACTS EXPECTED... SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------- LOCATION...20.3N 83.2W ABOUT 155 MI...250 KM SE OF THE WESTERN TIP OF CUBA MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H PRESENT MOVEMENT...NNW OR 330 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...972 MB...28.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Hurricane Warning has been issued for the Dry Tortugas. A Storm Surge Warning has been issued for Anclote River southward to Flamingo, including Tampa Bay. A Storm Surge Watch has been issued for Altamaha Sound to the Flagler/Volusia County Line, including the St. Johns River. The Tropical Storm Watch has been upgraded to a Tropical Storm Warning from Englewood southward to Flamingo. A Hurricane Watch has been issued from Bonita Beach to Englewood. The Hurricane Watch from Englewood to the Anclote River, including Tampa Bay, has been upgraded to a Hurricane Warning. A Hurricane Watch has been issued from the Anclote River to the Suwannee River. A Tropical Storm Watch has been issued from the Suwannee River to Indian Pass, and from Jupiter Inlet to Altamaha Sound. The government of the Cayman Islands has discontinued the Tropical Storm Warning for Grand Cayman and the Tropical Storm Watch for Little Cayman and Cayman Brac. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Cuban provinces of Isla de Juventud, Pinar del Rio, and Artemisa * Englewood to the Anclote River, including Tampa Bay * Dry Tortugas A Storm Surge Warning is in effect for... * Anclote River southward to Flamingo * Tampa Bay A Tropical Storm Warning is in effect for... * Cuban provinces of La Habana, Mayabeque, and Matanzas * Lower Florida Keys from Seven Mile Bridge westward to Key West * Flamingo to Englewood A Storm Surge Watch is in effect for... * Florida Keys from the Card Sound Bridge westward to Key West * Dry Tortugas * Florida Bay * Aucilla River to Anclote River * Altamaha Sound to Flagler/Volusia County Line * Saint Johns River A Hurricane Watch is in effect for... * North of Anclote River to the Suwannee River * Bonita Beach to Englewood A Tropical Storm Watch is in effect for... * Florida Keys from Seven Mile Bridge to the Channel 5 Bridge * Lake Okeechobee * North of the Suwannee River to Indian Pass * Jupiter Inlet to Altamaha Sound A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within 24 to 36 hours. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. 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 in central Cuba, the remainder of the Florida Keys, and the Florida peninsula should monitor the progress of Ian. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 500 PM EDT (2100 UTC), the center of Hurricane Ian was located near latitude 20.3 North, longitude 83.2 West. Ian is moving toward the north-northwest near 13 mph (20 km/h). A turn toward the north with a slightly slower forward speed is expected on Tuesday. A turn toward the north-northeast with a further reduction in forward speed is forecast on Wednesday. On the forecast track, the center of Ian is expected to move near or over western Cuba tonight and early Tuesday. Ian will then emerge over the southeastern Gulf of Mexico on Tuesday, pass west of the Florida Keys late Tuesday, and approach the west coast of Florida on Wednesday into Thursday. Maximum sustained winds have increased to near 100 mph (155 km/h) with higher gusts. Rapid strengthening is expected during the next day or so, and Ian is forecast to become a major hurricane tonight or early Tuesday when it is near western Cuba and remain a major hurricane over the southeastern Gulf of Mexico on Wednesday. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km). The estimated minimum central pressure is 972 mb (28.71 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Ian can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC and on the web at hurricanes.gov/text/MIATCDAT4.shtml. STORM SURGE: The combination of 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 could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... *Anclote River to Middle of Longboat Key, FL including Tampa Bay...5-10 ft *Suwannee River to Anclote River...5-8 ft *Middle of Longboat Key, FL to Englewood, FL...5-8 ft *Englewood, FL to Bonita Beach, FL including Charlotte Harbor... 4-7 ft *Bonita Beach, FL to East Cape Sable, FL...3-5 ft *Flagler/Volusia County Line, FL to Altamaha Sound including St. Johns River...2-4 ft *East Cape Sable, FL to Card Sound Bridge, FL including Florida Bay...2-4 ft *Aucilla River to Suwannee River...2-4 ft *Florida Keys including the Dry Tortugas...2-4 ft *Indian Pass, FL to Aucilla River...1-3 ft The deepest water will occur along the immediate coast near and to the right of the center, where the surge will be accompanied by large waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. Storm surge could raise water levels by as much as 9 to 14 feet above normal tide levels along the coast of western Cuba in areas of onshore winds in the hurricane warning area tonight and early Tuesday. WIND: Hurricane conditions are expected within the warning area in Cuba tonight, with tropical storm conditions expected by this evening. Destructive winds are possible where the core of Ian moves across western Cuba. Tropical storm conditions are expected within the tropical storm warning area in Cuba tonight and Tuesday. Hurricane conditions are expected along the west coast of Florida within the Hurricane Warning area on Wednesday, with tropical storm conditions possibly beginning by Tuesday night. Tropical storm conditions are expected in the warning area by Tuesday evening. Hurricane conditions are possible in the watch area beginning on Wednesday, and tropical storm conditions are possible in the watch area on Wednesday into early Thursday. Tropical storm conditions are expected in the warning area in the lower Florida Keys and are possible in the watch area in the middle Florida Keys on Tuesday. RAINFALL: Ian is expected to produce the following rainfall through Thursday: Jamaica: An additional 1 to 3 inches, with local maximum of 5 inches, especially along the south coastal region. Cayman Islands: 3 to 6 inches, with local maxima up to 8 inches. Western Cuba: 6 to 10 inches, with local maxima up to 16 inches. These rains may produce flash flooding and mudslides in areas of higher terrain over western Cuba. Florida Keys: 4 to 6 inches, with local maxima up to 8 inches Coastal Southwest and Southeast Florida: 4 to 6 inches with local maxima up to 10 inches Central West Florida: 6 to 12 inches, with local maxima up to 20 inches. Northeast Florida: 6 to 10 inches, with local maxima up to 12 inches. Remainder of the Central Florida Peninsula: 4 to 8 inches. Heavy rainfall is expected to affect the Southeast U.S. Friday and Saturday. Widespread considerable flash and urban flooding, and prolonged significant river flooding impacts are likely mid-to-late week across central and northern Florida, southern Georgia, and coastal South Carolina. Flash and urban flooding impacts are also possible with rainfall across the Florida Keys and the Florida peninsula through mid week. Limited flooding impacts and rises on area streams and rivers are also possible over portions of the Southeast mid-to-late week. TORNADOES: A few tornadoes are possible late tonight and Tuesday across the Florida Keys and the southern/central Florida Peninsula. SURF: Swells generated by Ian are affecting Jamaica and the Cayman Islands. Swells will spread northwestward to the southwestern coast of Cuba and the coasts of Honduras, Belize, and the Yucatan Peninsula of Mexico tonight. Swells are expected to begin affecting the Florida Keys Tuesday and spread northward along the west coast of Florida through Wednesday. 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 800 PM EDT. Next complete advisory at 1100 PM EDT. $$ Forecaster Reinhart
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