{"id": "1213254303253069831", "title": "Public Tropical Cyclone Advisory", "adv_date": "2026-09-25T09:00:00Z", "msg": "838\nWTPA32 PHFO 250850\nTCPCP2\n \nBULLETIN\nHurricane Nolo Advisory Number  19\nNWS Central Pacific Hurricane Center Honolulu HI   EP152026\nIssued by NWS National Hurricane Center Miami FL\n1100 PM HST Thu Sep 24 2026\n \n...NOLO STRENGTHENING WHILE MOVING NORTH-NORTHEASTWARD...\n...CATASTROPHIC AND LIFE-THREATENING FLASH FLOODING POSSIBLE ON THE\nBIG ISLAND OF HAWAII INTO THE WEEKEND...\n \n \nSUMMARY OF 1100 PM HST...0900 UTC...INFORMATION\n-----------------------------------------------\nLOCATION...15.5N 155.6W\nABOUT 240 MI...390 KM S OF SOUTH POINT HAWAII\nABOUT 430 MI...690 KM SSE OF HONOLULU HAWAII\nMAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H\nPRESENT MOVEMENT...NNE OR 30 DEGREES AT 5 MPH...7 KM/H\nMINIMUM CENTRAL PRESSURE...985 MB...29.09 INCHES\n \n \nWATCHES AND WARNINGS\n--------------------\nCHANGES WITH THIS ADVISORY:\n \nNone.\n \nSUMMARY OF WATCHES AND WARNINGS IN EFFECT:\n \nA Hurricane Watch is in effect for...\n* Hawaii County\n \nA Tropical Storm Warning is in effect for...\n* Hawaii County\n \nA Tropical Storm Watch is in effect for...\n* Maui County\n \nA Hurricane Watch means that hurricane conditions are possible\nwithin the watch area, in this case within 36 hours.\n \nA Tropical Storm Warning means that tropical storm conditions are\nexpected somewhere within the warning area within 36 hours.\n \nA Tropical Storm Watch means that tropical storm conditions are\npossible within the watch area, generally within 48 hours.\n \nInterests elsewhere in the Hawaiian Islands should closely monitor\nthe progress of this system.\n \nFor storm information specific to your area, please monitor products \nissued by your local National Weather Service forecast office.\n \n \nDISCUSSION AND OUTLOOK\n----------------------\nAt 1100 PM HST (0900 UTC), the center of Hurricane Nolo was located\nnear latitude 15.5 North, longitude 155.6 West. Nolo is moving\ntoward the north-northeast near 5 mph (7 km/h), and this \ngeneral motion with a decrease in forward speed is expected through \nlate Friday. A turn toward the west-northwest and west with an \nincrease in forward speed is forecast Saturday and Sunday. On the \nforecast track, the center of Nolo will remain well south of the \nmain Hawaiian Islands.\n \nData from an Air Force Reserve reconnaissance aircraft indicate that \nmaximum sustained winds have increased to near 80 mph (130 km/h) \nwith higher gusts.  Additional strengthening is forecast, and Nolo \nis expected to become a major hurricane on Saturday.\n \nHurricane-force winds extend outward up to 40 miles (65 km) from the\ncenter and tropical-storm-force winds extend outward up to 105 miles\n(165 km).\n \nThe minimum central pressure based on dropsonde data is 985 mb \n(29.09 inches).\n \n \nHAZARDS AFFECTING LAND\n----------------------\nKey messages for Nolo can be found in the Tropical Cyclone\nDiscussion under AWIPS header HFOTCDCP2 and WMO header WTPA42 PHFO.\n \nWIND: Tropical storm conditions are expected to begin by late\nFriday in the warning area, with hurricane conditions possible by\nearly Saturday, particularly in areas of steep terrain.\n \nTropical storm conditions are possible in the tropical storm watch\narea beginning on Saturday.\n \nRAINFALL: For the eastern and southern portions of the Big Island, \nNolo will produce rainfall totals of 15 to 30 inches with maximum \namounts of 35 inches.  This rainfall could produce catastrophic \nlife-threatening flooding and mudslides, especially in areas of \nsteep terrain.\n\nFor the western portions of the Big Island, rainfall totals of 5 to \n8 inches with maximum amounts of 10 inches are expected. For Maui, \nrainfall totals of 4 to 8 inches with maximum amounts of 15 inches \nare expected. Life-threatening flooding and mudslides are possible, \nespecially in areas of high terrain. \n\nAcross the remainder of the Hawaiian Islands, rainfall totals of 1 \nto 3 inches with maximum amounts of 6 inches are expected with \nisolated flooding possible.\n\nFor a complete depiction of forecast rainfall associated with \nHurricane Nolo, please see the National Weather Service Storm Total \nRainfall Graphic available at \nhurricanes.gov/graphics_cp2.shtml?rainqpf\n \nSTORM SURGE: The combination of a dangerous storm surge and the tide\nwill cause normally dry areas near the coast to be flooded by rising\nwaters moving inland from the shoreline. The water could reach the\nfollowing heights above ground somewhere in the indicated areas if\nthe peak surge occurs at the time of high tide...\n \nHawaii County...1 to 3 ft\n \nThe deepest water will occur along the immediate coast and will be\naccompanied by large and dangerous waves. Surge-related flooding\ndepends on the relative timing of the surge and the tidal cycle,\nand can vary greatly over short distances. For information\nspecific to your area, please see products issued by your local\nNational Weather Service forecast office.\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_cp2.shtml?peakSurge.\n \nSURF: Swells generated by Nolo are expected to reach exposed east-\nand south-facing shores of the Big Island by Friday, spreading\nwestward and building through the weekend. These swells are likely\nto cause life-threatening surf and rip current conditions. Please\nconsult products from your local weather office.\n \n \nNEXT ADVISORY\n-------------\nNext intermediate advisory at 200 AM HST.\nNext complete advisory at 500 AM HST.\n \n"}