Alert archive / Iowa / Winter Weather Advisories in 2021

Winter Weather Advisory 17, NWS La Crosse, WI

December 31, 20214 counties in Wisconsin; 8 counties in Iowa

NWS La Crosse, WI issued this winter weather advisory at Dec 31, 2021, 12:32 PM CST for 4 counties in Wisconsin; 8 counties in Iowa. It took effect at Dec 31, 2021, 1:00 PM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Dec 31, 2021, 12:32 PM CST (18:32 UTC)
In effect from: Dec 31, 2021, 1:00 PM CST
Expired: Dec 31, 2021, 9:00 PM CST
In force: 8 hr
Issued by: NWS La Crosse, WI

Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Crawford County, WI, Grant County, WI, Richland County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 79 km from the middle of the area, began a volume at 18:33 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 La Crosse, WI wrote its last area forecast discussion before this winter weather advisory went out at Dec 31, 11:33 AM CST, 59 minutes earlier.

Area forecast discussion, Dec 31, 11:33 AM CST, 59 minutes before

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Hazardous weather outlook, Dec 31, 5:03 AM CST, 7 hours 29 minutes before

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<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.
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The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 30, 8:47 PM CST	Dense Fog Advisory	ARX	Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell and 1 more	14 hr

Nearby

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