Alert archive / Wyoming / Winter Weather Advisories in 2021

Winter Weather Advisory 34, NWS Cheyenne, WY

October 11, 20214 counties in Wyoming; 4 counties in Nebraska

NWS Cheyenne, WY issued this winter weather advisory at Oct 11, 2021, 3:24 AM MDT for 4 counties in Wyoming; 4 counties in Nebraska. It took effect at Oct 11, 2021, 11:00 PM MDT. It was in force for 37 hr.

The area

The counties it named.

The facts

Issued: Oct 11, 2021, 3:24 AM MDT (09:24 UTC)
In effect from: Oct 11, 2021, 11:00 PM MDT
Expired: Oct 13, 2021, 12:00 PM MDT
In force: 37 hr
Issued by: NWS Cheyenne, WY

Counties Banner County, NE, Dawes County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Goshen County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 89 km from the middle of the area, began a volume at 09:26 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 winter weather advisory 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 winter weather advisory went out at Oct 10, 11:14 PM MDT, 4 hours 10 minutes earlier.

Area forecast discussion, Oct 10, 11:14 PM MDT, 4 hours 10 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>

Hazardous weather outlook, Oct 10, 4:05 PM MDT, 11 hours 19 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
Oct 11, 3:24 AM MDT	Winter Storm Warning	CYS	Albany, Carbon, Converse, Laramie, Niobrara, Platte	57 hr

Nearby

Winter Weather Advisories in Wyoming, 2021 Winter Weather Advisories in Nebraska, 2021 Every winter weather advisory in 2021

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.