Flash Flood Warning Hawaii | Effective 03/21/2026 17:36

Headline: 
Flash Flood Warning issued March 21 at 2:36PM HST until March 21 at 5:45PM HST by NWS Honolulu HI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
March 21, 2026 - 5:36pm
Expires: 
March 21, 2026 - 8:45pm
Description: 
FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Lanai in Maui County * Until 545 PM HST. * At 236 PM HST, radar indicated heavy showers and thunderstorms moving over Lanai from the southwest, with rain rates of 1 to 2 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