{"id": "1213361979974451207", "title": "Public Tropical Cyclone Advisory", "adv_date": "2026-09-25T18:00:00Z", "msg": "641\nWTPA32 PHFO 251758\nTCPCP2\n \nBULLETIN\nHurricane Nolo Intermediate Advisory Number 20A\nNWS Central Pacific Hurricane Center Honolulu HI   EP152026\nIssued by NWS National Hurricane Center Miami FL\n800 AM HST Fri Sep 25 2026\n\n...NOLO COULD CAUSE CATASTROPHIC AND LIFE-THREATENING FLASH \nFLOODING ON THE BIG ISLAND OF HAWAII THIS WEEKEND...\n \n \nSUMMARY OF 800 AM HST...1800 UTC...INFORMATION\n----------------------------------------------\nLOCATION...16.3N 155.5W\nABOUT 185 MI...300 KM S OF SOUTH POINT HAWAII\nABOUT 380 MI...610 KM SSE OF HONOLULU HAWAII\nMAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H\nPRESENT MOVEMENT...NNE OR 20 DEGREES AT 5 MPH...7 KM/H\nMINIMUM CENTRAL PRESSURE...980 MB...28.94 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 24-36 hours.\n \nA Tropical Storm Warning means that tropical storm conditions are\nexpected somewhere within the warning area within 24-36 hours.\n \nA Tropical Storm Watch means that tropical storm conditions are\npossible within the watch area, in this case within 36-48 hours.\n \nInterests elsewhere in the Hawaiian Islands should closely monitor\nthe progress of this system.\n \nFor storm information specific to your area, 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 800 AM HST (1800 UTC), the center of Hurricane Nolo was located\nnear latitude 16.3 North, longitude 155.5 West. Nolo is moving\ntoward the north-northeast near 5 mph (7 km/h), and this general \nmotion with a decrease in forward speed is expected through \ntonight. A turn toward the west-northwest and west with an increase \nin forward speed is forecast Saturday and Sunday. On the forecast \ntrack, the center of Nolo will remain well south of the main \nHawaiian Islands.\n \nMaximum sustained winds remain near 85 mph (140 km/h) with higher\ngusts.  Strengthening is forecast, and Nolo is expected to become a \nmajor hurricane this weekend.\n \nHurricane-force winds extend outward up to 45 miles (75 km) from\nthe center and tropical-storm-force winds extend outward up to 115\nmiles (185 km).\n \nThe estimated minimum central pressure is 980 mb (28.94 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 tonight in\nthe warning area, with hurricane conditions possible by early\nSaturday, 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 10 to 15 inches with maximum\namounts of 25 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 2 to\n4 inches with maximum amounts of 8 inches are expected. For Maui,\nrainfall totals of 4 to 6 inches with maximum amounts of 10 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 isolated maximum amounts of 6 inches are expected\nwith isolated 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 today, spreading westward\nand building through the weekend. These swells are likely to cause\nlife-threatening surf and rip current conditions. Please consult\nproducts from your local weather office.\n \n \nNEXT ADVISORY\n-------------\nNext complete advisory at 1100 AM HST.\n \n"}