Severe Flood ● Closed
Flood Watch issued September 7 at 3:23PM HST until September 8 at 6:00PM HST by NWS Honolulu HI, United States of America
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Moisture along the eastern flank of Hurricane Lowell will bring
periods of heavy rain to the main Hawaiian Islands through Tuesday.
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Kauai and Niihau.
* WHEN...Through Tuesday afternoon.
* IMPACTS...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...
- As the center of Hurricane Lowell passes west of the islands,
deep moisture associated with its inner rainbands will spread
across Kauai and Niihau where significant rainfall has already
fallen. These additional periods of heavy rain can quickly lead
to additional flash flooding.
- Kauai and Niihau.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Niihau; Kauai Southwest; Kauai 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 | 2026-09-08T05:30:00-10:00 |
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: WMO
This event as JSON · API and licence
Source updated 41 days ago (Sep 8, 2026 01:24 UTC) · we last heard from WMO Alert Hub (national weather services) 17 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; 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.