{"id": "1217182913558315015", "title": "Public Tropical Cyclone Advisory", "adv_date": "2026-10-09T06:00:00Z", "msg": "294\nWTNT34 KNHC 090552\nTCPAT4\n \nBULLETIN\nHurricane Isaias Intermediate Advisory Number 10A\nNWS National Hurricane Center Miami FL       AL092026\n100 AM CDT Fri Oct 09 2026\n \n...BOTH NOAA AND AIR FORCE HURRICANE HUNTERS FLYING INSIDE ISAIAS...\n...STORM SURGE AND HURRICANE WARNINGS REMAIN IN EFFECT...\n \n \nSUMMARY OF 100 AM CDT...0600 UTC...INFORMATION\n----------------------------------------------\nLOCATION...25.8N 88.4W\nABOUT 320 MI...515 KM NNE OF PROGRESO MEXICO\nABOUT 230 MI...375 KM S OF THE MOUTH OF THE MISSISSIPPI RIVER\nMAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H\nPRESENT MOVEMENT...NNE OR 30 DEGREES AT 14 MPH...22 KM/H\nMINIMUM CENTRAL PRESSURE...972 MB...28.71 INCHES\n \n \nWATCHES AND WARNINGS\n--------------------\nCHANGES WITH THIS ADVISORY:\n \nNone.\n \nSUMMARY OF WATCHES AND WARNINGS IN EFFECT:\n \nA Storm Surge Warning is in effect for...\n* Mouth of the Mississippi River to the Suwannee River\n \nA Hurricane Warning is in effect for...\n* Ocean Springs, MS to the Bay/Gulf County Line, FL\n \nA Tropical Storm Warning is in effect for...\n* Jefferson/Plaquemines Parish Line, LA to west of Ocean Springs, MS\n* East of Bay/Gulf County Line to Aucilla River, FL\n \nA Storm Surge Watch is in effect for...\n* Suwannee River to Yankeetown, FL\n \nA Storm Surge Warning means there is a danger of life-threatening\ninundation, from rising water moving inland from the coastline,\nduring the next 36 hours in the indicated locations. For a depiction\nof areas at risk, please see the National Weather Service Storm\nSurge Watch/Warning Graphic, available at hurricanes.gov. This is a\nlife-threatening situation. Persons located within these areas\nshould take all necessary actions to protect life and property from\nrising water and the potential for other dangerous conditions.\nPromptly follow evacuation and other instructions from local\nofficials.\n \nA Hurricane Warning means that hurricane conditions are expected\nsomewhere within the warning area, in this case within 24 hours. \nPreparations to protect life and property should be rushed to\ncompletion.\n \nA Tropical Storm Warning means that tropical storm conditions are\nexpected somewhere within the warning area within 36 hours.\n \nA Storm Surge Watch means there is a possibility of life-\nthreatening inundation, from rising water moving inland from the\ncoastline, in the indicated locations during the next 48 hours. For\na depiction of areas at risk, please see the National Weather\nService Storm Surge Watch/Warning Graphic, available at\nhurricanes.gov.\n \nFor storm information specific to your area, including possible\ninland watches and warnings, please monitor products issued by your\nlocal National Weather Service forecast office.\n \n \nDISCUSSION AND OUTLOOK\n----------------------\nAt 100 AM CDT (0600 UTC), the center of Hurricane Isaias was located\nby NOAA and Air Force Hurricane Hunter aircraft near latitude 25.8 \nNorth, longitude 88.4 West. Isaias is moving toward the \nnorth-northeast near 14 mph (22 km/h). A turn toward the \nnorth is expected later today. On the forecast track, Isaias is \nexpected to approach the U.S. northern Gulf Coast later today and \nmake landfall within the warning area tonight or early Saturday.\n \nMaximum sustained winds remain near 105 mph (165 km/h) with higher\ngusts.  Isaias could briefly become a major hurricane later today. \nAlthough some weakening is forecast thereafter, Isaias will remain \na dangerous hurricane as it approaches the northern Gulf Coast \ntonight.\n \nHurricane-force winds extend outward up to 25 miles (35 km) from\nthe center and tropical-storm-force winds extend outward up to 125\nmiles (205 km).\n \nThe estimated minimum central pressure is 972 mb (28.71 inches) \nbased on Air Force and NOAA dropsonde data.\n \n \nHAZARDS AFFECTING LAND\n----------------------\nKey messages for Isaias can be found in the Tropical Cyclone\nDiscussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.\n \nSTORM SURGE: The combination of a dangerous storm surge and the\ntide will cause normally dry areas near the coast to be flooded by\nrising waters moving inland from the shoreline. The water could\nreach the following heights above ground somewhere in the indicated\nareas if the peak surge occurs at the time of high tide...\n \nDauphin Island, AL to Indian Pass, FL...5-7 ft\nIndian Pass, FL to Steinhatchee River, FL...4-6 ft\nOcean Springs, MS to Dauphin Island, AL...4-6 ft\nMobile Bay...4-6 ft\nMouth of the Mississippi River, LA to Ocean Springs, MS...3-5 ft\nSteinhatchee River, FL to Suwannee River, FL...3-5 ft\nSuwannee River, FL to Yankeetown, FL...2-4 ft\nYankeetown, FL to Egmont Key, FL...1-3 ft\nLake Pontchartrain...1-3 ft\nMorgan City, LA to Mouth of the Mississippi River, LA...1-2 ft\n \nThe deepest water will occur along the immediate coast in areas of\nonshore winds, where the surge will be accompanied by large and\ndangerous waves. Surge-related flooding depends on the relative\ntiming of the surge and the tidal cycle, and can vary greatly over\nshort distances. For information specific to your area, please see\nproducts issued by your local National Weather Service forecast\noffice.\n \nFor a complete depiction of areas at risk of storm surge inundation,\nplease see the National Weather Service Peak Storm Surge Graphic,\navailable at hurricanes.gov/graphics_at4.shtml?peakSurge.\n \nWIND: Hurricane conditions are expected within the Hurricane Warning\narea tonight into early Saturday, with tropical storm conditions \nbeginning later today. Tropical storm conditions are expected in \nthe warning areas today and tonight.\n \nRAINFALL: From today through the weekend, Isaias is expected to\nproduce rainfall amounts of 4 to 8 inches across southern Alabama,\nthe Florida Panhandle and Big Bend, and southwest Georgia. Localized\ntotals up to 15 inches are possible, particularly within banding\nacross the Florida Panhandle and Big Bend. Across the coastal\nCarolinas, rainfall of 3 to 5 inches, with localized totals up to 8\ninches are possible. Rainfall amounts of 1 to 3 inches, with\nlocalized amounts up to 5 inches, are possible across much of the\nremainder of the Southeast. Flash and urban flooding is likely\nacross the region, with considerable impacts possible across much of\nsouthern Alabama and the Florida Panhandle into southwestern\nGeorgia. River flooding is also expected, some of which could be\nsignificant.\n \nFor a complete depiction of forecast rainfall associated with\nIsaias, please see the National Weather Service Storm Total Rainfall\nGraphic available at hurricanes.gov/graphics_at4.shtml?rainqpf and\nthe Flash Flood Risk graphic at\nhurricanes.gov/graphics_at4.shtml?ero.\n \nTORNADOES: A risk for tornadoes will begin this evening in coastal\nareas of Alabama, the Florida Panhandle, and far southwest Georgia.\nThe tornado threat will continue through Saturday for parts of\neastern Alabama into Georgia and the Florida Panhandle.\n \nSURF: Swells from Isaias are affecting the western and northern\nportions of the Yucatan Peninsula and will spread northward toward\nthe Gulf Coast later today. These swells are likely to cause\nlife-threatening surf and rip current conditions. Please consult\nproducts from your local weather office.\n \nA depiction of rip current risk for the United States can be found\nat: hurricanes.gov/graphics_at4.shtml?ripCurrents\n \n \nNEXT ADVISORY\n-------------\nNext complete advisory at 400 AM CDT.\n \n"}