Alert archive / Wyoming / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 161, NWS Cheyenne, WY

June 26, 2026Niobrara County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 26, 2026, 4:39 PM MDT for Niobrara County, Wyoming. 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: Jun 26, 2026, 4:39 PM MDT (22:39 UTC)
Expired: Jun 26, 2026, 5:15 PM MDT
In force: 36 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Niobrara County, WY

The radar

The Rapid City radar (KUDX), 178 km from the middle of the area, began a volume at 22:40 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 26, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

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 26, 1:18 PM MDT, 3 hours 21 minutes earlier.

Area forecast discussion, Jun 26, 1:18 PM MDT, 3 hours 21 minutes before

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In the hours before

Special weather statement, Jun 26, 1:08 PM MDT, 3 hours 31 minutes before

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Special weather statement, Jun 26, 2:47 PM MDT, 1 hour 52 minutes before

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Special weather statement, Jun 26, 3:57 PM MDT, 42 minutes before

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Special weather statement, Jun 26, 4:20 PM MDT, 19 minutes before

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Special weather statement, Jun 26, 4:32 PM MDT, 7 minutes before

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Special weather statement, Jun 26, 4:33 PM MDT, 6 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 25, 6:10 PM MDT	Special Weather Statement	CYS	Laramie	35 min
Jun 26, 1:08 PM MDT	Special Weather Statement	CYS	Albany	37 min
Jun 26, 2:47 PM MDT	Special Weather Statement	CYS	Goshen	28 min
Jun 26, 3:17 PM MDT	Severe Thunderstorm Warning	CYS	Goshen	43 min
Jun 26, 3:57 PM MDT	Special Weather Statement	CYS	Goshen	33 min
Jun 26, 4:20 PM MDT	Special Weather Statement	CYS	Converse	55 min
Jun 26, 4:32 PM MDT	Special Weather Statement	CYS	Niobrara	28 min
Jun 26, 4:56 PM MDT	Severe Thunderstorm Warning	CYS	Converse, Niobrara	34 min
Jun 26, 5:02 PM MDT	Special Weather Statement	CYS	Laramie	28 min
Jun 26, 5:29 PM MDT	Special Weather Statement	CYS	Niobrara	31 min
Jun 26, 5:31 PM MDT	Special Weather Statement	CYS	Laramie	29 min
Jun 26, 5:54 PM MDT	Special Weather Statement	CYS	Converse	36 min
Jun 26, 4:33 PM MDT	Special Weather Statement	CYS	Scotts Bluff	27 min
Jun 26, 4:49 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Scotts Bluff	41 min
Jun 26, 5:04 PM MDT	Special Weather Statement	CYS	Scotts Bluff	26 min
Jun 26, 5:26 PM MDT	Special Weather Statement	CYS	Banner, Scotts Bluff	34 min
Jun 26, 5:34 PM MDT	Special Weather Statement	CYS	Cheyenne	26 min
Jun 26, 5:53 PM MDT	Flash Flood Warning	CYS	Scotts Bluff	4 hr

Nearby

Severe Thunderstorm Warnings in Wyoming, 2026 Every 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.