Severe Flood ● Closed
Flood Watch issued September 26 at 3:48AM HST until September 26 at 6:00PM HST by NWS Honolulu HI, United States of America
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Hurricane Nolo remains nearly stationary south of the Big Island.
The possibility of heavy rain could lead to localized flooding over
portions of the Big Island and Maui.
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Big Island, Maui, Lanai, Molokai, and Kahoolawe.
* 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. Significant flooding may occur due to the overflow of
streams and drainages. Roads in several areas may be closed, along
with property damage in urban or low lying spots due to runoff.
Landslides may also occur in areas with steep terrain.
* ADDITIONAL DETAILS...
- The possibility remains for localized flooding over areas of the
Big Island and Maui due to heavy rain from slow moving Hurricane
Nolo to the south of the Big Island. Areas most at risk for
flooding are the windward and southeast portions of the Big
Island where the ground remains saturated after recent rains.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; Molokai Windward; Mo |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-09-26T18:00:00-10:00 |
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 reportThis event as JSON · API and licence
Source updated 23 days ago (Sep 26, 2026 13:49 UTC) · we last heard from WMO Alert Hub (national weather services) 24 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: Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; Molokai Windward; Mo
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.