Alert archive / Louisiana / Dense Fog Advisories in 2021

Dense Fog Advisory 33, NWS Lake Charles, LA

November 21, 202110 parishes in Louisiana; Newton County, Texas

NWS Lake Charles, LA issued this dense fog advisory at Nov 21, 2021, 1:31 AM CST for 10 parishes in Louisiana; Newton County, Texas. It took effect at Nov 21, 2021, 3:00 AM CST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Nov 21, 2021, 1:31 AM CST (07:31 UTC)
In effect from: Nov 21, 2021, 3:00 AM CST
Expired: Nov 21, 2021, 9:00 AM CST
In force: 6 hr
Issued by: NWS Lake Charles, LA

Counties Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Vernon Parish, LA, Newton County, TX

The radar

The Ft Polk radar (KPOE), 67 km from the middle of the area, began a volume at 07:36 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 Lake Charles, LA wrote its last area forecast discussion before this dense fog advisory went out at Nov 20, 11:51 PM CST, 1 hour 40 minutes earlier.

Area forecast discussion, Nov 20, 11:51 PM CST, 1 hour 40 minutes before

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Hazardous weather outlook, Nov 20, 3:08 PM CST, 10 hours 23 minutes before

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  <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 Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 21, 2:26 PM CST	Small Craft Advisory	LCH		34 hr

Nearby

Dense Fog Advisories in Louisiana, 2021 Dense Fog Advisories in Texas, 2021 Every dense fog 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.