Flash Flood Warning Hawaii | Effective 03/21/2026 14:32

Headline: 
Flash Flood Warning issued March 21 at 11:32AM HST until March 21 at 2:45PM HST by NWS Honolulu HI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
March 21, 2026 - 2:32pm
Expires: 
March 21, 2026 - 5:45pm
Description: 
FFWHFO The National Weather Service in Honolulu has issued a * Flash Flood Warning for... The island of Lanai in Maui County * Until 245 PM HST. * At 1132 AM HST, radar indicated heavy showers and thunderstorms moving moving over Lanai, with rain rates of of 1 to 3 inches per hour. Flash flooding is ongoing or expected to begin shortly. 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... Lanai City, Manele and Lanai Airport.
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