Public Tropical Cyclone Advisory
972 WTNT34 KNHC 092052 TCPAT4 BULLETIN Hurricane Isaias Advisory Number 13 NWS National Hurricane Center Miami FL AL092026 400 PM CDT Fri Oct 09 2026 ...CONDITIONS DETERIORATING QUICKLY WITHIN THE STORM SURGE AND HURRICANE WARNING AREAS... ...RESIDENTS SHOULD BE SEEKING SAFE SHELTER... SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...29.2N 87.0W ABOUT 90 MI...145 KM S OF PENSACOLA FLORIDA ABOUT 125 MI...195 KM SSE OF MOBILE ALABAMA MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...N OR 10 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...959 MB...28.32 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Mouth of the Mississippi River to the Suwannee River A Hurricane Warning is in effect for... * Ocean Springs, MS to the Bay/Gulf County Line, FL A Tropical Storm Warning is in effect for... * Jefferson/Plaquemines Parish Line, LA to west of Ocean Springs, MS * East of Bay/Gulf County Line to Aucilla River, FL A Storm Surge Watch is in effect for... * Suwannee River to Yankeetown, FL A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline. 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 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 area. A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 400 PM CDT (2100 UTC), the center of Hurricane Isaias was located near latitude 29.2 North, longitude 87.0 West. Isaias is moving toward the north near 17 mph (28 km/h), and this general motion is expected to continue through Saturday. A north-northeastward to northeastward motion is forecast on Sunday. On the forecast track, Isaias is expected to make landfall along the coast of the western Florida Panhandle this evening. The center is then expected to move across Alabama and into the Tennessee Valley Saturday and Sunday. Maximum sustained winds are near 115 mph (185 km/h) with higher gusts. Isaias is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Little change in strength is expected before Isaias makes landfall this evening. Weakening is expected to begin tonight after landfall, and Isaias is forecast to become post-tropical on Saturday. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 205 miles (335 km). A sustained wind of 46 mph (74 km/h) with a gust to 58 mph (93 km/h) was recently measured at Fair Point Light 2 near Gulf Breeze, Florida. A wind gust to 56 mph (90 km/h) was reported at the Pensacola Naval Air Station. The estimated minimum central pressure is 959 mb (28.32 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Isaias can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC. 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 could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... AL/FL Border to Grayton Beach, FL...6-9 ft Grayton Beach, FL to Indian Pass, FL...4-7 ft Indian Pass, FL to Steinhatchee River, FL...4-6 ft Dauphin Island, AL to AL/FL Border...4-6 ft Steinhatchee River, FL to Suwannee River, FL...3-5 ft Mouth of the Mississippi River, LA to Dauphin Island, AL...3-5 ft Lower Mobile Bay...3-5 ft Suwannee River, FL to Yankeetown, FL...2-4 ft Upper Mobile Bay...2-4 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous 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. For a complete depiction of areas at risk of storm surge inundation, please see the National Weather Service Peak Storm Surge Graphic, available at hurricanes.gov/graphics_at4.shtml?peakSurge. WIND: Within the Hurricane Warning area, tropical storm conditions are now occurring, and hurricane conditions are expected this evening into early Saturday. Hurricane-force winds are expected to spread inland as far as 100 miles from the coast into southern Alabama. Tropical storm conditions are also occurring in the tropical storm warning areas. RAINFALL: From Friday through the weekend, Isaias is expected to produce rainfall amounts of 4 to 8 inches across southern Alabama, the Florida Panhandle and Big Bend, and southwest Georgia. Localized totals up to 15 inches are possible, particularly within banding across the Florida Panhandle and Big Bend. Across much of the remainder of the Southeast, rainfall amounts of 2 to 5 inches are expected. Localized higher amounts up to 10 inches are possible, especially across the Southern Appalachians and coastal Carolinas. Flash, urban, and river flooding is possible across the region, with considerable impacts likely across much of southern Alabama and the Florida Panhandle into southwestern Georgia. Considerable flash flooding and landslides are also possible across the Southern Appalachians. For a complete depiction of forecast rainfall associated with Isaias, please see the National Weather Service Storm Total Rainfall Graphic available at hurricanes.gov/graphics_at4.shtml?rainqpf and the Flash Flood Risk graphic at hurricanes.gov/graphics_at4.shtml?ero. TORNADOES: The risk for tornadoes this afternoon in the Florida Panhandle will continue into this evening and tonight across the Florida Panhandle, southeast Alabama, and southern Georgia. The tornado threat will continue Saturday across parts of eastern Alabama, the Florida Panhandle, Georgia, and the Carolinas. SURF: Swells from Isaias are affecting much of the Gulf coasts of the United States, Mexico, and western Cuba. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. A depiction of rip current risk for the United States can be found at: hurricanes.gov/graphics_at4.shtml?ripCurrents NEXT ADVISORY ------------- Next intermediate advisory at 700 PM CDT. Next complete advisory at 1000 PM CDT.