Alert archive / Wyoming / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 281, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 22, 2026, 6:13 PM MDT for Converse County, Niobrara County, Wyoming. It was in force for 47 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
- Aug 22, 2026, 6:13 PM MDT (00:13 UTC)
- Expired
- Aug 22, 2026, 7:00 PM MDT
- In force
- 47 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Converse County, WY, Niobrara County, WY
The radar
The Cheyenne radar (KCYS), 208 km from the middle of the area, began a volume at 00:14 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 Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 6:02 PM MDT | Special Weather Statement | CYS | Converse | 43 min |
| Aug 22, 6:05 PM MDT | Areal Flood Advisory | CYS | Albany, Converse | 115 min |
| Aug 22, 6:10 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 50 min |
| Aug 22, 7:25 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 38 min |
| Aug 22, 9:18 PM MDT | Special Weather Statement | CYS | Converse | 42 min |
| Aug 22, 9:39 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 51 min |
| Aug 22, 9:45 PM MDT | Special Weather Statement | CYS | Laramie | 45 min |
| Aug 23, 5:19 PM MDT | Special Weather Statement | CYS | Carbon | 26 min |
| Aug 22, 6:32 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Kimball | 43 min |
| Aug 22, 6:45 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 30 min |
| Aug 22, 7:08 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Cheyenne, Kimball, Morrill | 52 min |
| Aug 23, 1:38 PM MDT | Special Weather Statement | CYS | Dawes | 52 min |
| Aug 23, 1:52 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 38 min |
| Aug 23, 2:25 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 50 min |
| Aug 23, 3:01 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes | 41 min |
| Aug 23, 3:39 PM MDT | Special Weather Statement | CYS | Box Butte | 36 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 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.