Alert archive / Iowa / Dense Fog Advisories in 2012

Dense Fog Advisory 4, NWS Sioux Falls, SD

February 13, 20126 counties in South Dakota; 11 counties in Iowa; 6 counties in Minnesota

NWS Sioux Falls, SD issued this dense fog advisory at Feb 13, 2012, 8:59 PM CST for 6 counties in South Dakota; 11 counties in Iowa; 6 counties in Minnesota. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Feb 13, 2012, 8:59 PM CST (02:59 UTC)
Expired: Feb 14, 2012, 9:59 AM CST
In force: 13 hr
Issued by: NWS Sioux Falls, SD

All 23 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Clay County, SD, Lincoln County, SD, Minnehaha County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 69 km from the middle of the area, began a volume at 03:00 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 dense fog 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 dense fog advisory went out at Feb 13, 3:03 PM CST, 5 hours 56 minutes earlier.

Area forecast discussion, Feb 13, 3:03 PM CST, 5 hours 56 minutes before

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Hazardous weather outlook, Feb 13, 11:57 AM CST, 9 hours 2 minutes before

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In the hours before

Local storm report, Feb 13, 3:32 PM CST, 5 hours 27 minutes before

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Local storm report, Feb 13, 3:53 PM CST, 5 hours 6 minutes before

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      <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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Local storm report, Feb 13, 4:43 PM CST, 4 hours 16 minutes before

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<body>
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      <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.
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      <p id="message2">
        Please try again in a few minutes.
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      <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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Local storm report, Feb 13, 4:48 PM CST, 4 hours 11 minutes before

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<body>
  <main class="wrap">
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      <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>
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Local storm report, Feb 13, 5:06 PM CST, 3 hours 53 minutes before

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<html lang="en">
<head>
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  <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>

Nearby

Dense Fog Advisories in Iowa, 2012 Dense Fog Advisories in South Dakota, 2012 Dense Fog Advisories in Minnesota, 2012 Every dense fog 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.