Alert archive / Montana / Winter Weather Advisories in 2021

Winter Weather Advisory 46, NWS Great Falls, MT

December 18, 2021

NWS Great Falls, MT issued this winter weather advisory at Dec 18, 2021, 12:59 PM MST. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 2021, 12:59 PM MST (19:59 UTC)
Expired
Dec 20, 2021, 2:30 AM MST
In force
38 hr
Issued by
NWS Great Falls, MT

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 Great Falls, MT wrote its last area forecast discussion before this winter weather advisory went out at Dec 17, 2:47 PM MST, 22 hours 12 minutes earlier.

Area forecast discussion, Dec 17, 2:47 PM MST, 22 hours 12 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 Great Falls, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 18, 3:08 AM MSTWinter Storm WarningTFX35 hr
Dec 18, 3:09 AM MSTHigh Wind WarningTFX24 hr

Nearby

Winter Weather Advisories in Montana, 2021Every 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.