Flood Watch Hawaii | Effective 03/15/2026 16:59

Headline: 
Flood Watch issued March 15 at 1:59PM HST until March 16 at 6:00AM HST by NWS Honolulu HI
Event: 
Flood Watch
Urgency: 
Future
Effective: 
March 15, 2026 - 4:59pm
Expires: 
March 16, 2026 - 9:00am
Description: 
...FLOOD WATCH FOR MAUI COUNTY AND THE BIG ISLAND THROUGH TONIGHT... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...The Big Island. * WHEN...Through late tonight. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff. * ADDITIONAL DETAILS... - With deep moisture in place, southwest winds will deliver periods of moderate to heavy rain to portions of Leeward Big Island through tonight. Saturated ground conditions will increase the risk for flash flooding.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Kona; Kohala; Big Island Interior; Big Island South; Big Island Southeast; Big Island East; Big Island North
Forcast Office: 
NWS Honolulu HI
Sender: 
w-nws.webmaster@noaa.gov