Alert archive / Wisconsin / Dense Fog Advisories in 2020

Dense Fog Advisory 6, NWS Twin Cities, MN

June 21, 20206 counties in Wisconsin

NWS Twin Cities, MN issued this dense fog advisory at Jun 21, 2020, 3:05 AM CDT for 6 counties in Wisconsin. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jun 21, 2020, 3:05 AM CDT (08:05 UTC)
Expired: Jun 21, 2020, 9:00 AM CDT
In force: 6 hr
Issued by: NWS Twin Cities, MN

Counties Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 137 km from the middle of the area, began a volume at 08:10 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 Twin Cities, MN wrote its last area forecast discussion before this dense fog advisory went out at Jun 20, 11:04 PM CDT, 4 hours 1 minute earlier.

Area forecast discussion, Jun 20, 11:04 PM CDT, 4 hours 1 minute before

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Hazardous weather outlook, Jun 20, 8:39 PM CDT, 6 hours 26 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.
      </p>
    </section>
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In the hours before

Special weather statement, Jun 20, 10:45 PM CDT, 4 hours 20 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 20, 10:45 PM CDT	Special Weather Statement	MPX	Lac qui Parle	30 min
Jun 21, 2:26 PM CDT	Special Weather Statement	MPX	Brown	34 min
Jun 21, 2:42 PM CDT	Special Weather Statement	MPX	Scott	33 min
Jun 21, 2:54 PM CDT	Special Weather Statement	MPX	Nicollet	36 min
Jun 21, 3:02 PM CDT	Special Weather Statement	MPX	Brown	73 min
Jun 21, 3:16 PM CDT	Special Weather Statement	MPX	Sibley	44 min
Jun 21, 3:41 PM CDT	Special Weather Statement	MPX	Scott	49 min
Jun 21, 3:59 PM CDT	Severe Thunderstorm Warning	MPX	Martin, Watonwan	46 min
Jun 21, 4:14 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	20 min
Jun 21, 4:28 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Watonwan	32 min
Jun 21, 5:12 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	33 min
Jun 21, 5:15 PM CDT	Special Weather Statement	MPX	Martin	45 min
Jun 21, 5:20 PM CDT	Special Weather Statement	MPX	Waseca	40 min
Jun 21, 5:52 PM CDT	Special Weather Statement	MPX	Faribault	38 min
Jun 21, 5:57 PM CDT	Special Weather Statement	MPX	Blue Earth, Watonwan	33 min
Jun 21, 6:07 PM CDT	Special Weather Statement	MPX	Freeborn	38 min
Jun 21, 6:44 PM CDT	Special Weather Statement	MPX	Freeborn	31 min
Jun 21, 3:47 PM CDT	Special Weather Statement	MPX	Saint Croix	43 min
Jun 21, 4:12 PM CDT	Special Weather Statement	MPX	Barron	33 min
Jun 21, 5:26 PM CDT	Special Weather Statement	MPX	Barron, Dunn, Rusk	49 min
Jun 21, 6:54 PM CDT	Special Weather Statement	MPX	Eau Claire	36 min

Nearby

Dense Fog Advisories in Wisconsin, 2020 Every dense fog advisory in 2020

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.