{"id": "1217077712732323847", "title": "Public Tropical Cyclone Advisory", "adv_date": "2026-10-08T21:00:00Z", "msg": "645\nWTNT34 KNHC 082057\nTCPAT4\n \nBULLETIN\nHurricane Isaias Advisory Number   9\nNWS National Hurricane Center Miami FL       AL092026\n400 PM CDT Thu Oct 08 2026\n \n...HURRICANE HUNTERS FIND THAT ISAIAS NOW HAS 100 MPH WINDS...\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 400 PM CDT...2100 UTC...INFORMATION\n----------------------------------------------\nLOCATION...24.4N 89.3W\nABOUT 215 MI...345 KM N OF PROGRESO MEXICO\nABOUT 325 MI...525 KM S OF THE MOUTH OF THE MISSISSIPPI RIVER\nMAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H\nPRESENT MOVEMENT...NE OR 50 DEGREES AT 12 MPH...19 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 400 PM CDT (2100 UTC), the eye of Hurricane Isaias was located\nnear latitude 24.4 North, longitude 89.3 West. Isaias is moving\ntoward the northeast near 12 mph (19 km/h).  A turn toward the\nnorth is expected on Friday.  On the forecast track, Isaias is\nexpected to pass to the north of the Yucatan Peninsula through\nthis evening and make landfall along the U.S. northern Gulf Coast\nwithin the warning area late Friday or early Saturday.\n \nMaximum sustained winds have increased to near 100 mph (155 km/h) \nwith higher gusts.  Additional strengthening is expected through \nearly Friday, and Isaias should remain a dangerous hurricane as it \napproaches the northern Gulf Coast Friday night.\n \nHurricane-force winds extend outward up to 15 miles (30 km) from the\ncenter and tropical-storm-force winds extend outward up to 125 miles\n(205 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 for\nthe next several hours.\n \nRAINFALL: From Friday 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: An isolated risk for tornadoes will begin Friday night in\ncoastal areas of Alabama, the Florida Panhandle and far southwestern\nGeorgia. The tornado threat will continue Saturday for eastern\nAlabama, Georgia, and the Florida Panhandle.\n \nSURF: Swells will affect the western and northern portions of the\nYucatan Peninsula today and spread northward toward the Gulf Coast\non Friday. These swells are likely to cause life-threatening surf\nand rip current conditions. Please consult products from your local\nweather 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 intermediate advisory at 700 PM CDT.\nNext complete advisory at 1000 PM CDT.\n \n"}