Severe Flood ● Closed
Flood Watch issued October 7 at 1:41AM HST until October 8 at 6:00PM HST by NWS Honolulu HI, United States of America
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A developing area of low pressure north of the Hawaiian Islands will draw deep tropical moisture northward resulting in a threat for heavy rain over Kauai and Oahu tonight through Thursday.* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Kauai, Niihau and Oahu. * WHEN...From Wednesday evening through Thursday 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 develop tonight and continue through Thursday as deep tropical moisture is drawn northward over the state. Training of heavy showers containing intense rain rates will be possible.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South; |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-08T13:45:00-10:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
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Source updated 12 days ago (Oct 7, 2026 11:42 UTC) · we last heard from WMO Alert Hub (national weather services) 9 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South;
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.