Alert archive / Wyoming / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 290, NWS Cheyenne, WY

August 10, 2025Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 10, 2025, 4:06 PM MDT for Laramie County, Wyoming. It was in force for 24 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, 2025, 4:06 PM MDT (22:06 UTC)
Expired: Aug 10, 2025, 4:30 PM MDT
In force: 24 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 20 km from the middle of the area, began a volume at 22:08 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 Aug 9, 5:46 PM MDT, 22 hours 20 minutes earlier.

Area forecast discussion, Aug 9, 5:46 PM MDT, 22 hours 20 minutes before

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Hazardous weather outlook, Aug 9, 4:43 PM MDT, 23 hours 23 minutes before

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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 12:59 PM MDT	Special Weather Statement	CYS	Platte	31 min
Aug 10, 1:38 PM MDT	Special Weather Statement	CYS	Albany	37 min
Aug 10, 2:29 PM MDT	Special Weather Statement	CYS	Albany	31 min
Aug 10, 2:42 PM MDT	Special Weather Statement	CYS	Albany	33 min
Aug 10, 3:30 PM MDT	Special Weather Statement	CYS	Albany	45 min
Aug 10, 3:53 PM MDT	Special Weather Statement	CYS	Platte	52 min
Aug 10, 3:55 PM MDT	Special Weather Statement	CYS	Laramie	50 min
Aug 10, 4:04 PM MDT	Special Weather Statement	CYS	Laramie	26 min
Aug 10, 4:34 PM MDT	Special Weather Statement	CYS	Laramie	41 min
Aug 10, 5:24 PM MDT	Special Weather Statement	CYS	Laramie	36 min
Aug 10, 6:17 AM MDT	Special Weather Statement	CYS	Scotts Bluff	28 min
Aug 10, 5:50 PM MDT	Special Weather Statement	CYS	Banner, Kimball	55 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.