Alert archive / Montana / Winter Storm Watches in 2021

Winter Storm Watch 4, NWS Billings, MT

December 21, 20214 counties in Montana

NWS Billings, MT issued this winter storm watch at Dec 21, 2021, 3:29 PM MST for 4 counties in Montana. It took effect at Dec 23, 2021, 12:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued: Dec 21, 2021, 3:29 PM MST (22:29 UTC)
In effect from: Dec 23, 2021, 12:00 AM MST
Expired: Dec 22, 2021, 1:52 PM MST
In force
Issued by: NWS Billings, MT

Counties Carbon County, MT, Park County, MT, Stillwater County, MT, Sweet Grass County, MT

The radar

The Billings radar (KBLX), 93 km from the middle of the area, began a volume at 22:28 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 storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Billings, MT wrote its last area forecast discussion before this winter storm watch went out at Dec 21, 1:49 PM MST, 1 hour 40 minutes earlier.

Area forecast discussion, Dec 21, 1:49 PM MST, 1 hour 40 minutes before

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In the hours before

Local storm report, Dec 21, 1:58 PM MST, 1 hour 31 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 Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 20, 11:36 PM MST	Special Weather Statement	BYZ	Yellowstone	54 min
Dec 20, 10:52 PM MST	Special Weather Statement	BYZ	Sheridan	113 min

Nearby

Winter Storm Watches in Montana, 2021 Every winter storm watch 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.