Alert archive / Iowa / Dense Fog Advisories in 2016

Dense Fog Advisory 2, NWS Sioux Falls, SD

January 7, 20168 counties in South Dakota; 11 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this dense fog advisory at Jan 7, 2016, 7:57 AM CST for 8 counties in South Dakota; 11 counties in Iowa; 8 counties in Minnesota. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jan 7, 2016, 7:57 AM CST (13:57 UTC)
Expired: Jan 7, 2016, 12:00 PM CST
In force: 4 hr
Issued by: NWS Sioux Falls, SD

All 27 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, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Clay County, SD, Lake County, SD, Lincoln County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 56 km from the middle of the area, began a volume at 13:58 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 Jan 7, 5:33 AM CST, 2 hours 24 minutes earlier.

Area forecast discussion, Jan 7, 5:33 AM CST, 2 hours 24 minutes before

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Hazardous weather outlook, Jan 7, 4:30 AM CST, 3 hours 27 minutes before

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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <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.
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        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 Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 6, 10:14 PM CST	Winter Weather Advisory	FSD	Beadle, Brookings, Jerauld, Kingsbury, Lake, Miner and 2 more	11 hr
Jan 7, 12:09 PM CST	Dense Fog Advisory	FSD	Clay, Lincoln, Turner, Union, Yankton	111 min
Jan 7, 2:03 PM CST	Dense Fog Advisory	FSD	Clay, Lincoln, Turner, Union, Yankton	88 min

Nearby

Dense Fog Advisories in Iowa, 2016 Dense Fog Advisories in South Dakota, 2016 Dense Fog Advisories in Minnesota, 2016 Every dense fog advisory in 2016

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.