Flash Flood Warning Issued for Kauai as Heavy Rain Impacts Island
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Flash Flood Warning for Kauai until 6:00 AM HST following reports of heavy rain and rising river levels.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Kauai, HI
- Issued
- April 6, 2026
- Issuing authority
- NWS Honolulu
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Kauai, HI.
Alert Details
The National Weather Service in Honolulu has issued a Flash Flood Warning for the island of Kauai. This is an immediate-response alert based on radar indications of heavy rainfall and observed river rises.
Affected Areas
The warning covers the entire island of Kauai in Kauai County. Specific areas of concern include windward sections of the island and the Hanalei River. Officials report that the Hanalei River is rising rapidly, reaching levels that typically result in the closure of Kuhio Highway near the Hanalei River Bridge due to water over the roadway.
What You Should Do
Residents and visitors are urged to stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Do not attempt to cross fast-flowing or rising water in your vehicle or on foot; remember the safety phrase: "Turn around, don't drown."
Be especially cautious at night when it is harder to recognize the dangers of flooding. Additionally, the heavy rains may cause rock and mudslides in areas with steep terrain.
Expected Conditions
As of 2:50 AM HST, radar indicated heavy rain falling over windward sections of Kauai at a rate of 2 to 3 inches per hour. Flooding is expected in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures are possible in some areas.
Timeline
The Flash Flood Warning is effective immediately and is currently set to expire at 6:00 AM HST on February 21, 2026.
Original source: NOAA Official Notice ↗
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