Alert archive / Wyoming / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 103, NWS Cheyenne, WY

June 16, 2025Converse County, Niobrara County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 16, 2025, 5:40 PM MDT for Converse County, Niobrara County, Wyoming. It was in force for 46 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: Jun 16, 2025, 5:40 PM MDT (23:40 UTC)
Expired: Jun 16, 2025, 6:26 PM MDT
In force: 46 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 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 23:40 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 5:48 PM MDT, 23 hours 52 minutes earlier.

Area forecast discussion, Jun 15, 5:48 PM MDT, 23 hours 52 minutes before

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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 6:53 PM MDT	Special Weather Statement	CYS	Niobrara	67 min
Jun 16, 1:49 PM MDT	Special Weather Statement	CYS	Albany	71 min
Jun 16, 2:25 PM MDT	High Wind Watch	CYS	Albany, Carbon	9 hr
Jun 16, 3:31 PM MDT	Special Weather Statement	CYS	Laramie	29 min
Jun 16, 4:22 PM MDT	Special Weather Statement	CYS		53 min
Jun 16, 4:30 PM MDT	Severe Thunderstorm Warning	CYS	Albany, Converse, Platte	60 min
Jun 16, 4:58 PM MDT	Severe Thunderstorm Warning	CYS	Converse	51 min
Jun 16, 5:22 PM MDT	Severe Thunderstorm Warning	CYS	Converse	53 min
Jun 16, 5:30 PM MDT	Areal Flood Advisory	CYS	Albany, Converse	3 hr
Jun 15, 6:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Banner, Cheyenne, Kimball	56 min
Jun 15, 6:24 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Box Butte, Cheyenne, Kimball, Morrill	66 min
Jun 15, 6:46 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne, Morrill	59 min
Jun 16, 5:50 PM MDT	Special Weather Statement	CYS	Morrill	40 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2025 Every severe thunderstorm 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.