Alert archive / Arizona / Flash Flood Warnings in 2026
Flash Flood Warning 63, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Jul 22, 2026, 3:45 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
- Jul 22, 2026, 3:45 PM MST (22:45 UTC)
- Expired
- Jul 22, 2026, 6:45 PM 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 22:44 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 nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 10.8 hours before the alert went out and 344 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2570 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Jul 21, 3:54 PM MST, 23 hours 51 minutes earlier.
Area forecast discussion, Jul 21, 3:54 PM MST, 23 hours 51 minutes before
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</html>The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 5:40 PM MST | Flash Flood Warning | FGZ | Coconino, Gila, Yavapai | 3 hr |
| Jul 21, 5:49 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Jul 21, 7:14 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Jul 21, 7:15 PM MST | Flash Flood Warning | FGZ | Yavapai | 3 hr |
| Jul 21, 8:00 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Jul 21, 8:12 PM MST | Flash Flood Warning | FGZ | Coconino, Yavapai | 3 hr |
| Jul 22, 2:08 AM MST | Flash Flood Warning | FGZ | Coconino | 7 hr |
| Jul 22, 3:55 AM MST | Flash Flood Warning | FGZ | Yavapai | 5 hr |
| Jul 22, 9:12 AM MST | Areal Flood Warning | FGZ | Coconino | 11 hr |
| Jul 22, 1:14 PM MST | Areal Flood Warning | FGZ | Coconino | 10 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.