Alert archive / Wyoming / Freeze Warnings in 2026

Freeze Warning 3, NWS Cheyenne, WY

May 19, 20264 counties in Wyoming

NWS Cheyenne, WY issued this freeze warning at May 19, 2026, 11:40 AM MDT for 4 counties in Wyoming. It took effect at May 19, 2026, 9:00 PM MDT. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 19, 2026, 11:40 AM MDT (17:40 UTC)
In effect from: May 19, 2026, 9:00 PM MDT
Expired: May 20, 2026, 10:00 AM MDT
In force: 13 hr
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 113 km from the middle of the area, began a volume at 17:43 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 freeze 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 freeze warning went out at May 18, 5:43 PM MDT, 17 hours 57 minutes earlier.

Area forecast discussion, May 18, 5:43 PM MDT, 17 hours 57 minutes before

<!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 Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 19, 11:40 AM MDT	Frost Advisory	CYS	Albany, Laramie, Niobrara, Platte	20 hr

Nearby

Freeze Warnings in Wyoming, 2026 Every freeze 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.