Alert archive / Arizona / Flash Flood Warnings in 2026
Flash Flood Warning 129, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Aug 20, 2026, 9:55 PM MST for Coconino County, Arizona. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 20, 2026, 9:55 PM MST (04:55 UTC)
- Expired
- Aug 21, 2026, 1:00 AM MST
- In force
- 3 hr
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Coconino County, AZ
The radar
The Flagstaff radar (KFSX), 150 km from the middle of the area, began a volume at 04:55 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 5:08 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 37 min |
| Aug 20, 6:05 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 25 min |
| Aug 20, 6:30 PM MST | Severe Thunderstorm Warning | FGZ | Coconino, Navajo | 23 min |
| Aug 20, 7:06 PM MST | Areal Flood Advisory | FGZ | Navajo | 114 min |
| Aug 20, 7:14 PM MST | Special Weather Statement | FGZ | Navajo | 31 min |
| Aug 20, 8:08 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 20, 9:47 PM MST | Flash Flood Warning | FGZ | Coconino | 6 hr |
Nearby
Flash Flood Warnings in Arizona, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.