Alert archive / South Dakota / Winter Weather Advisories in 2012

Winter Weather Advisory 9, NWS Sioux Falls, SD

February 27, 201215 counties in South Dakota; 6 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this winter weather advisory at Feb 27, 2012, 3:25 AM CST for 15 counties in South Dakota; 6 counties in Iowa; 8 counties in Minnesota. It took effect at Feb 28, 2012, 6:00 AM CST. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Feb 27, 2012, 3:25 AM CST (09:25 UTC)
In effect from: Feb 28, 2012, 6:00 AM CST
Expired: Feb 29, 2012, 12:00 PM CST
In force: 30 hr
Issued by: NWS Sioux Falls, SD

All 29 counties

Clay County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Aurora County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 7 km from the middle of the area, began a volume at 09:24 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 Sioux Falls, SD wrote its last area forecast discussion before this winter weather advisory went out at Feb 26, 4:30 PM CST, 10 hours 55 minutes earlier.

Area forecast discussion, Feb 26, 4:30 PM CST, 10 hours 55 minutes before

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Hazardous weather outlook, Feb 26, 6:20 AM CST, 21 hours 5 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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</body>
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The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 27, 3:25 AM CST	Winter Storm Warning	FSD	Aurora, Beadle, Brookings, Brule, Jerauld, Kingsbury and 4 more	57 hr

Nearby

Winter Weather Advisories in South Dakota, 2012 Winter Weather Advisories in Minnesota, 2012 Winter Weather Advisories in Iowa, 2012 Every winter weather advisory in 2012

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.