Severe Flood ● Closed
Flash Flood Warning issued October 8 at 10:21AM HST until October 8 at 1:15PM HST by NWS Honolulu HI, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
FFWHFO
The National Weather Service in Honolulu has issued a
* Flash Flood Warning for...
The island of Oahu in Honolulu County
* Until 115 PM HST.
* At 1021 AM HST, emergency management reported water flowing over
portions of Kamehameha Highway on the North Shore between Turtle
Bay and Sharks's Cove, making passage through the area dangerous.
Moderate to locally heavy rain continues to develop and move over
the island with the majority occurring over the western half of the
island. Rain rates range from 0.5 to 2 inches per hour. Flash
flooding is ongoing or expected to begin shortly. Additional
showers with embedded heavier rain are expected to move over the
island for the next few hours, especially the western half.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Emergency management reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
the entire island of Oahu.
Measurements
| Coordinates | 21.3938, -157.8805 |
|---|---|
| Region | Oahu in Honolulu, HI |
| Location Precision | polygon |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Immediate |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-08T13:15:00-10:00 |
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).
View original reportAlso reported by: NWS NWS NWS
This event as JSON · API and licence
Source updated 11 days ago (Oct 8, 2026 20:22 UTC) · we last heard from WMO Alert Hub (national weather services) 15 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
Satellite view, before and after
The latest clear Sentinel-2 pass before this event and the earliest one after it.
6 Oct 2026, 2 days before this event. 15.4% cloud across the tile.
9 Oct 2026, the day after this event. 11.6% cloud across the tile.
The white ring marks where the event was reported.
Each image is a preview of a whole Sentinel-2 tile — an area of roughly 110 by 110 km, where one pixel is about 320 metres — not a close-up of the event, which may be a small part of it. "Clear" means under 30% cloud across the entire tile, so the exact place that matters can still be hidden. These are pictures for context, not an assessment of damage.
Contains modified Copernicus Sentinel data 2026, found through the Earth Search catalogue (Element 84) and served from the AWS Open Data Sentinel-2 archive.
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.