Alert archive / Utah / Red Flag Warnings in 2025

Red Flag Warning 10, NWS Salt Lake City, UT

August 12, 20258 counties in Utah

NWS Salt Lake City, UT issued this red flag warning at Aug 12, 2025, 12:36 PM MDT for 8 counties in Utah. It took effect at Aug 13, 2025, 12:00 PM MDT. It was in force for 9 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 12, 2025, 12:36 PM MDT (18:36 UTC)
In effect from
Aug 13, 2025, 12:00 PM MDT
Expired
Aug 13, 2025, 9:00 PM MDT
In force
9 hr
Issued by
NWS Salt Lake City, UT

Counties Cache County, UT, Morgan County, UT, Rich County, UT, Salt Lake County, UT, Summit County, UT, Utah County, UT, Wasatch County, UT, Weber County, UT

The radar

The Salt Lake City radar (KMTX), 84 km from the middle of the area, began a volume at 18:38 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 Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 12:36 PM MDTFire Weather WatchSLCBeaver, Box Elder, Cache, Carbon, Davis, Duchesne and 19 more25 hr
Aug 12, 2:45 PM MDTExtreme Heat WarningSLCGarfield, Kane, San Juan29 hr

Nearby

Red Flag Warnings in Utah, 2025Every red flag 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.