Honolulu, Hawaii

Regional Weather Alerts


Alert: Flood Watch
Area(s): Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward
Effective: 2025-12-12 @ 6:48 pm -> 2025-12-16 @ 10:00 am
Onset: 2025-12-14 @ 4:00 am -> 2025-12-13 @ 10:00 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Honolulu HI on 2025-12-12 @ 6:48 pm
Headline: Flood Watch issued December 12 at 2:48PM HST until December 16 at 6:00AM HST by NWS Honolulu HI
Description: ...FLOOD WATCH FOR KAUAI, NIIHAU, AND OAHU...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Kauai, Oahu, and Niihau.

* WHEN...From late Saturday night through late Monday night.

* 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...
- The potential for locally heavy showers and isolated
thunderstorms will increase across the western end of the
state as a front approaches from the northwest on Saturday,
then stalls Sunday and Monday.