Flash Flood Warning Issued for Coconino County, AZ (Aug 31, 2026)
This alert is no longer in effect.
NOAA issued it on August 31, 2026, 3 weeks 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.
NWS Flagstaff has issued a Flash Flood Warning for Coconino County in north central Arizona until 2:15 PM MST due to thunderstorms producing heavy rain.
The weather record, at a glance
- Record type
- Flash Flood Warning
- Affected area
- Coconino County, AZ
- Issued
- August 31, 2026
- Issuing authority
- NWS Flagstaff AZ
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 3 weeks ago; use the issuing agency's live warning service for current conditions in Coconino County, AZ.
Alert Details
A Flash Flood Warning (FFW) has been issued by the National Weather Service in Flagstaff AZ. The alert is effective from August 31, 2026 at 6:17 AM MST until August 31, 2026 at 2:15 PM MST. The warning carries a severity of Severe with immediate urgency.
Affected Areas
The warning covers Coconino County in north central Arizona, specifically the Paria River area. Locations include Paria Canyon, Paria River Slot Canyon, The Wave, Vermilion Cliffs National Monument, Lees Ferry, and the Colorado River between river miles 0 and 1. Affected recreation areas and campgrounds include Lee's Ferry Campground, Lees Ferry Campground, Paria Beach Camp Site, and Lees Ferry Camp Site. Creeks, washes, and rivers mentioned are the Paria River, Colorado River, and Ferry Swale Canyon.
What You Should Do
Flooding of washes and creeks will occur. Some dirt roads will become muddy and impassable. Paved roads and underpasses could become flooded as well. Residents and visitors should avoid flooded areas.
Expected Conditions
Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 0.5 inches of rain have fallen, with additional rainfall amounts up to 0.25 inches possible. Flash flooding is ongoing or expected to begin shortly. Hazard includes life threatening flash flooding of creeks and streams, normally dry washes, urban areas, highways, streets and underpasses.
Timeline
The Flash Flood Warning is in effect from 6:17 AM MST to 2:15 PM MST on August 31, 2026.
Original source: NOAA Official Notice ↗
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Similar body length
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