Hawaii Minor Flood Advisory | Effective 06/18/2026 21:41

Headline: 
Flood Advisory issued June 18 at 6:41PM HST until June 18 at 9:45PM HST by NWS Honolulu HI
Event: 
Flood Advisory
Urgency: 
Expected
Effective: 
June 18, 2026 - 9:41pm
Expires: 
June 19, 2026 - 12:45am
Description: 
* WHAT...Flooding caused by excessive rainfall. * WHERE...The island of Oahu in Honolulu County. * WHEN...Until 945 PM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. * ADDITIONAL DETAILS... - At 641 PM HST, radar and automated rain gauges indicated heavy rain over windward portions Oahu from Kaneohe to Punaluu. Rain was falling at a rate of 0.5 to 1 inch per hour. - Some locations that will experience flooding include... Waikane, Waiahole, Kaaawa, Kahaluu, Ahuimanu, Punaluu, Hauula, Kaneohe, Kailua, Kahana Valley State Park, Kualoa and Heeia.
Instruction: 
Stay away from streams, drainage ditches and low lying areas prone to flooding.
Area Description: 
Oahu in Honolulu, HI
Forcast Office: 
NWS Honolulu HI