Alert archive / Wyoming / Special Weather Statements in 2026

Special Weather Statement, NWS Riverton, WY

August 18, 2026

NWS Riverton, WY issued this special weather statement at Aug 18, 2026, 2:21 PM MDT. 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 outline as issued.

The facts

Issued: Aug 18, 2026, 2:21 PM MDT (20:21 UTC)
Expired: Aug 18, 2026, 2:45 PM MDT
In force: 24 min
Issued by: NWS Riverton, WY
Hail: 0.50 in
Wind: 50

The radar

The Billings radar (KBLX), 220 km from the middle of the area, began a volume at 20:23 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 text

As transmitted.

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 6:03 PM MDT	Special Weather Statement	RIW	Park	27 min
Aug 18, 3:56 PM MDT	Special Weather Statement	RIW	Big Horn	34 min
Aug 18, 4:17 PM MDT	Special Weather Statement	RIW	Teton	28 min
Aug 18, 4:32 PM MDT	Special Weather Statement	RIW	Park	28 min
Aug 18, 5:08 PM MDT	Special Weather Statement	RIW	Park	37 min
Aug 18, 5:17 PM MDT	Special Weather Statement	RIW	Big Horn	28 min

Nearby

Special Weather Statements in Wyoming, 2026 Every special weather statement 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.