Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 378, NWS Denver/Boulder, CO

September 5, 2026Logan County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Sep 5, 2026, 4:31 PM MDT for Logan County, Colorado. It was in force for 44 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 5, 2026, 4:31 PM MDT (22:31 UTC)
Expired
Sep 5, 2026, 5:15 PM MDT
In force
44 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Logan County, CO

The radar

The Cheyenne radar (KCYS), 150 km from the middle of the area, began a volume at 22:33 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 Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 5, 2:47 PM MDTSpecial Weather StatementBOULincoln43 min
Sep 5, 4:31 PM MDTFlood WatchBOULogan, Phillips, Sedgwick10 hr
Sep 5, 4:46 PM MDTSevere Thunderstorm WarningBOULogan44 min
Sep 5, 5:11 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick49 min
Sep 5, 5:34 PM MDTSevere Thunderstorm WarningBOULogan, Sedgwick26 min
Sep 5, 5:50 PM MDTAreal Flood AdvisoryBOULogan3 hr

Nearby

Severe Thunderstorm Warnings in Colorado, 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.