Alert archive / Iowa / Winter Weather Advisories in 2021

Winter Weather Advisory 19, NWS Quad Cities, IA

December 31, 202116 counties in Iowa; 7 counties in Illinois

NWS Quad Cities, IA issued this winter weather advisory at Dec 31, 2021, 11:01 AM CST for 16 counties in Iowa; 7 counties in Illinois. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Dec 31, 2021, 11:01 AM CST (17:01 UTC)
Expired: Dec 31, 2021, 9:00 PM CST
In force: 10 hr
Issued by: NWS Quad Cities, IA

All 23 counties

Benton County, IA, Buchanan County, IA, Cedar County, IA, Clinton County, IA, Delaware County, IA, Dubuque County, IA, Iowa County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Washington County, IA, Carroll County, IL, Henry County, IL, Jo Daviess County, IL, Mercer County, IL, Rock Island County, IL, Stephenson County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 43 km from the middle of the area, began a volume at 17:05 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 Quad Cities, IA wrote its last area forecast discussion before this winter weather advisory went out at Dec 31, 5:57 AM CST, 5 hours 4 minutes earlier.

Area forecast discussion, Dec 31, 5:57 AM CST, 5 hours 4 minutes before

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Hazardous weather outlook, Dec 31, 4:21 AM CST, 6 hours 40 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 Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 30, 7:17 PM CST	Dense Fog Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	23 hr

Nearby

Winter Weather Advisories in Iowa, 2021 Winter Weather Advisories in Illinois, 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.