Alert archive / Utah / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 121, NWS Salt Lake City, UT

September 1, 2026Box Elder County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Sep 1, 2026, 4:09 PM MDT for Box Elder County, Utah. It was in force for 36 min. 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 1, 2026, 4:09 PM MDT (22:09 UTC)
Expired
Sep 1, 2026, 4:45 PM MDT
In force
36 min
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

County Box Elder County, UT

The radar

The Salt Lake City radar (KMTX), 60 km from the middle of the area, began a volume at 22:11 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 31, 6:04 PM MDTSpecial Weather StatementSLCMorgan, Weber26 min
Aug 31, 6:25 PM MDTFlash Flood Warning Considerable damage threatSLCWashington3 hr
Aug 31, 6:27 PM MDTFlash Flood WarningSLCGarfield5 hr
Aug 31, 7:44 PM MDTAreal Flood AdvisorySLCKane2 hr
Sep 1, 12:36 PM MDTFlash Flood Warning Considerable damage threatSLCWashington3 hr
Sep 1, 12:44 PM MDTFlash Flood Warning Considerable damage threatSLCKane, Washington3 hr
Sep 1, 12:49 PM MDTSpecial Weather StatementSLC41 min
Sep 1, 12:52 PM MDTSevere Thunderstorm WarningSLCKane, Washington38 min
Sep 1, 1:26 PM MDTSevere Thunderstorm WarningSLCKane34 min
Sep 1, 3:34 PM MDTSevere Thunderstorm WarningSLCBox Elder26 min
Sep 1, 3:42 PM MDTFlash Flood Warning Considerable damage threatSLCKane7 hr

Nearby

Severe Thunderstorm Warnings in Utah, 2026Every severe thunderstorm 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.