Hawaii Severe Flood Watch | Effective 10/08/2026 08:08

Headline: 
Flood Watch issued October 8 at 5:08AM HST until October 8 at 6:00PM HST by NWS Honolulu HI
Event: 
Flood Watch
Urgency: 
Future
Effective: 
October 8, 2026 - 8:08am
Expires: 
October 8, 2026 - 9:00pm
Description: 
A deepening area of low pressure north of the Hawaiian Islands has drawn deep tropical moisture over the area resulting in a threat for flooding for Oahu today. * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Oahu. * WHEN...Through this afternoon. * 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... - Heavy showers and isolated thunderstorms will continue into this afternoon as deep tropical moisture is drawn northward over the area. Training of heavy showers containing intense rain rates is possible.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward
Forcast Office: 
NWS Honolulu HI
Sender: 
w-nws.webmaster@noaa.gov