Alert archive / Arizona / Flash Flood Warnings in 2025

Flash Flood Warning 36, NWS Flagstaff, AZ

September 3, 2025Navajo County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Sep 3, 2025, 3:01 PM MDT for Navajo 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: Sep 3, 2025, 3:01 PM MDT (21:01 UTC)
Expired: Sep 3, 2025, 6:00 PM MDT
In force: 3 hr
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Navajo County, AZ

The radar

The Flagstaff radar (KFSX), 122 km from the middle of the area, began a volume at 21:00 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.

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 Sep 3, 11:49 AM MDT, 3 hours 12 minutes earlier.

Area forecast discussion, Sep 3, 11:49 AM MDT, 3 hours 12 minutes before

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The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 3, 2:19 PM MDT	Areal Flood Advisory	FGZ	Coconino	3 hr
Sep 3, 4:48 PM MDT	Flash Flood Warning Considerable damage threat	FGZ	Gila	3 hr

Nearby

Flash Flood Warnings in Arizona, 2025 Every flash flood warning in 2025

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.