Flash Flood Warning Issued for Entire Big Island of Hawaii Through Early Sunday
This alert is no longer in effect.
NOAA issued it on April 1, 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 life-threatening Flash Flood Warning for the Big Island of Hawaii as heavy rain triggers stream overflows and road closures.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Big Island of Hawaii
- Issued
- April 1, 2026
- Issuing authority
- NWS Honolulu HI
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 Big Island of Hawaii.
Alert Details
The National Weather Service in Honolulu has issued a Flash Flood Warning for the entire island of Hawaii. This alert indicates that flash flooding is currently occurring or imminent, posing a significant threat to life and property.
Affected Areas
The warning covers the entire Big Island of Hawaii within Hawaii County. Radar data and stream gauges indicate widespread impacts across the island, with reports of ongoing flooding in local communities and multiple highway closures.
What You Should Do
Residents and travelers are urged to stay away from streams, rivers, drainage ditches, and culverts, even if they appear dry. Be especially cautious at night when flood dangers are harder to recognize. Do not attempt to travel unless you are fleeing an area subject to flooding or are under an evacuation order. Additionally, be alert for potential rock and mudslides in areas of steep terrain.
Expected Conditions
At the time of the alert, radar indicated heavy rain falling at a rate of 1 to 3 inches per hour. Several stream gauges have remained above flood warning thresholds island-wide. Expected impacts include significant flooding in drainages, roads, and low-lying areas, as well as landslides in steep terrain. The damage threat is considered considerable.
Timeline
The Flash Flood Warning is effective immediately and is scheduled to remain in effect until 1:00 AM HST on March 15, 2026.
Original source: NOAA Official Notice ↗
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