Severe

Significant threat to life or property

Flash Flood Warning Severe Hawaii | Effective 03-21-2026 02:34

Public safety alert, emergency alert, and weather alert Description: FFWHFO The National Weather Service in Honolulu has issued a * Flash Flood Warning for... The island of Molokai in Maui County * Until 230 AM HST. * At 1134 PM HST, A line of heavy showers with embedded thunderstorms moving in from the west is producing rainfall rates of 1 to 3 inches per hour. Reports of flooding, downed trees, and landslides have already been received from emergency management

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 16:31

Public safety alert, emergency alert, and weather alert Description: FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 500 PM HST. * At 131 PM HST, emergency management reported ongoing flood impacts in the North Shore areas. The Wahiawa Reservoir and area streams remain elevated as well. Additional areas of heavy rain are expected over the next few hours which could exacerbate existing

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 13:54

Public safety alert, emergency alert, and weather alert Description: FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 200 PM HST. * At 1054 AM HST, additional water continued to run off into the Wahiawa Reservoir and area streams keeping water levels elevated. Flood impacts from earlier rainfall are ongoing. Despite a lull in rainfall at this time, additional areas of heavy rain are expected

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 10:43

Public safety alert, emergency alert, and weather alert Description: FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 1100 AM HST. * At 743 AM HST, emergency management reported widespread life-threatening flash flooding effects continuing across northern Oahu, particularly in the Haleiwa and Waialua areas. Although rainfall rates have temporarily decreased, significant runoff

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 07:53

Public safety alert, emergency alert, and weather alert Description: FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 800 AM HST. * At 453 AM HST, emergency management reported life-threatening flash flooding across northern Oahu, particularly in the Haleiwa and Waialua areas. Floodwaters have cut off road access in and out of Haleiwa, and widespread flooding of roadways and low-lying

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 06:16

Public safety alert, emergency alert, and weather alert Description: ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM HST EARLY THIS MORNING FOR THE ISLAND OF OAHU IN HONOLULU COUNTY... At 316 AM HST, emergency management reported life-threatening flash flooding across northern Oahu, particularly in the Haleiwa and Waialua areas. Floodwaters have cut off road access in and out of Haleiwa, and widespread flooding of roadways and low-lying areas is

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 04:53

Public safety alert, emergency alert, and weather alert Description: FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 500 AM HST. * At 153 AM HST, emergency management reported heavy rain and widespread flooding across northern Oahu this morning. Currently, there is no road access in or out of Haleiwa due to high flood waters. Although rainfall rates have decreased over the area,
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