Severe

Significant threat to life or property

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,

Flash Flood Warning Severe Hawaii | Effective 03-20-2026 02:39

Public safety alert, emergency alert, and weather alert Description: At 1139 PM HST, radar and rain gauges indicated heavy rain falling over the northern half of Oahu. Rain was falling at a rate of 1 to 3 inches per hour. Flash flooding is ongoing potentially making roadways impassable. Flooding conditions will rapidly worsen as additional heavy rain continues to fall over the next hour. Oahu Emergency Management officials are reporting streams and drainages
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