Hawaii Flash Flood Warning | Effective 04/10/2026 00:30

Headline: 
Flash Flood Warning issued April 9 at 9:30PM HST until April 10 at 1:45AM HST by NWS Honolulu HI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
April 10, 2026 - 12:30am
Expires: 
April 10, 2026 - 4:45am
Description: 
FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Kauai in Kauai County * Until 145 AM HST. * At 930 PM HST, radar and automated rain gauges indicated moderate to heavy rain moving over Kauai from the south, with more rain upstream. Rain was falling at a rate of 1 to 2 inches per hour, and streams across Kauai remain elevated. Waimea River and Hanapepe River have been steadily increasing and Hanalei River remains closed. Additional heavy showers moving through could result in sharp rises in streams and new or worsening flooding. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar and automated gauges. 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... The island of Kauai.
Instruction: 
Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry.
Area Description: 
Kauai, HI
Forcast Office: 
NWS Honolulu HI