{"id": "1217041728803078151", "title": "Public Tropical Cyclone Advisory", "adv_date": "2026-10-08T18:00:00Z", "msg": "817\nWTNT34 KNHC 081754\nTCPAT4\n \nBULLETIN\nHurricane Isaias Intermediate Advisory Number 8A\nNWS National Hurricane Center Miami FL       AL092026\n100 PM CDT Thu Oct 08 2026\n \n...ISAIAS EXPECTED TO STRENGTHEN FURTHER...\n...PREPARATIONS TO PROTECT LIFE AND PROPERTY FROM STORM SURGE AND\nDAMAGING WINDS IN THE WARNING AREA SHOULD BE RUSHED TO COMPLETION\nTODAY...\n \n \nSUMMARY OF 100 PM CDT...1800 UTC...INFORMATION\n----------------------------------------------\nLOCATION...24.0N 89.8W\nABOUT 185 MI...300 KM N OF PROGRESO MEXICO\nABOUT 355 MI...570 KM S OF THE MOUTH OF THE MISSISSIPPI RIVER\nMAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H\nPRESENT MOVEMENT...ENE OR 60 DEGREES AT 10 MPH...17 KM/H\nMINIMUM CENTRAL PRESSURE...975 MB...28.80 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\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. A warning is typically issued 36\nhours before the anticipated first occurrence of\ntropical-storm-force winds, conditions that make outside\npreparations difficult or dangerous. Preparations to protect life\nand property should be rushed to completion.\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 PM CDT (1800 UTC), the center of Hurricane Isaias was located\nnear latitude 24.0 North, longitude 89.8 West.  Isaias is moving\ntoward the east-northeast near 10 mph (17 km/h).  A turn toward the \nnortheast is expected later today followed by a northward turn on \nFriday.  On the forecast track, Isaias is expected to pass to the \nnorth of the Yucatan Peninsula today and make landfall along the \nU.S. northern Gulf Coast within the warning area late Friday or \nearly Saturday.\n \nMaximum sustained winds are near 85 mph (140 km/h) with higher\ngusts.  Additional strengthening is expected through early Friday, \nand Isaias should remain a dangerous hurricane as it approaches the \nnorthern Gulf Coast Friday night.\n \nHurricane-force winds extend outward up to 15 miles (30 km) from\nthe center and tropical-storm-force winds extend outward up to 90\nmiles (150 km).\n \nThe estimated minimum central pressure is 975 mb (28.80 inches).\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 \nOcean Springs, MS to Indian Pass, FL...5-7 ft\nMobile Bay...5-7 ft\nIndian Pass, FL to Steinhatchee River, FL...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\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 Friday night into early Saturday, with tropical storm\nconditions beginning on Friday. Tropical storm conditions are\nexpected in the warning areas on Friday and Friday night.\n \nGusty winds are possible in portions of the Yucatan Peninsula today.\n \nRAINFALL: Isaias is expected to produce rainfall amounts of 1 to 3\ninches through Thursday across coastal portions of the eastern Bay\nof Campeche with isolated higher amounts possible in the states of\nCampeche and western Yucatan.\n \nFrom Friday through the weekend, Isaias is expected to produce\nrainfall amounts of 3 to 7 inches across the central U.S. Gulf Coast\nextending from far southeastern Louisiana to the Florida Big Bend\nregion. Localized totals up to 15 inches are possible, particularly\nwithin banding across the Florida Panhandle and Big Bend. Rainfall\namounts of 1 to 3 inches, with localized amounts up to 5 inches, are\npossible across much of the Southeast as far north as the Tennessee\nValley and the Carolinas. Flash and urban flooding is possible\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\nTropical Storm Isaias, please see the National Weather Service Storm\nTotal Rainfall Graphic available at\nhurricanes.gov/graphics_at4.shtml?rainqpf and the Flash Flood Risk\ngraphic at hurricanes.gov/graphics_at4.shtml?ero.\n \nTORNADOES: Isolated tornadoes will be possible Friday night in\ncoastal areas of Alabama and the Florida Panhandle and far\nsouthwestern Georgia. The tornado threat will continue Saturday for\neastern Alabama, Georgia and northern Florida.\n \nSURF: Swells will affect the western and northern portions of the\nYucatan Peninsula beginning today and spread northward toward the \nGulf Coast on Friday. 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 PM CDT.\n \n"}