Alert archive / Wyoming / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 229, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 10, 2026, 4:37 PM MDT for Converse County, Niobrara County, Platte County, Wyoming. It was in force for 38 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 10, 2026, 4:37 PM MDT (22:37 UTC)
- Expired
- Aug 10, 2026, 5:15 PM MDT
- In force
- 38 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Converse County, WY, Niobrara County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 175 km from the middle of the area, began a volume at 22:39 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 10, 1:03 AM MDT | Red Flag Warning | CYS | Albany, Carbon, Converse, Goshen, Niobrara, Platte | 20 hr |
| Aug 10, 1:51 PM MDT | Red Flag Warning | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 31 hr |
| Aug 10, 3:05 PM MDT | Special Weather Statement | CYS | Carbon | 25 min |
| Aug 10, 4:00 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 45 min |
| Aug 10, 5:34 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Carbon | 41 min |
| Aug 9, 6:09 PM MDT | Special Weather Statement | CYS | Morrill | 36 min |
| Aug 9, 6:30 PM MDT | Special Weather Statement | CYS | Box Butte | 30 min |
| Aug 9, 6:33 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 42 min |
| Aug 9, 6:41 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 49 min |
| Aug 9, 6:47 PM MDT | Special Weather Statement | CYS | Cheyenne | 28 min |
| Aug 9, 7:14 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Cheyenne, Kimball, Morrill | 61 min |
| Aug 9, 8:14 PM MDT | Special Weather Statement | CYS | Cheyenne | 31 min |
| Aug 10, 3:53 PM MDT | Special Weather Statement | CYS | Morrill | 37 min |
| Aug 10, 4:02 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 21 min |
| Aug 10, 5:06 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 39 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.