Flash Flood Warning Hawaii | Effective 03/21/2026 14:57

Headline: 
Flash Flood Warning issued March 21 at 11:57AM HST until March 21 at 3:00PM HST by NWS Honolulu HI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
March 21, 2026 - 2:57pm
Expires: 
March 21, 2026 - 6:00pm
Description: 
FFWHFO The National Weather Service in Honolulu has issued a * Flash Flood Warning for... The island of Maui in Maui County * Until 300 PM HST. * At 1157 AM HST, radar indicated heavy showers and thunderstorms moving over West Maui from the south, with rain falling at rates of 1 to 3 inches per hour. Emergency management reported flooding with a road closure in Lahaina. Streams will rise rapidly across West Maui, including in areas not experiencing heavy rain, and heavy rain is expected to spread to additional areas of Maui this afternoon. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. * Some locations that will experience flash flooding include... Kahului, Kihei, Lahaina, Waikapu, Maalaea, Wailuku, Puunene, Waiehu, Waihee, Paia, Haliimaile, Olowalu, Pukalani, Makawao, Kahakuloa, Wailea, Kula, Keokea, Pauwela and Haiku-Pauwela.
Instruction: 
Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry.
Area Description: 
Maui, HI
Forcast Office: 
NWS Honolulu HI