Alert archive / West Virginia / Dense Fog Advisories in 2012

Dense Fog Advisory 21, NWS Baltimore/Washington

November 21, 2012Allegany County, Frederick County, Washington County, Maryland; 7 counties in West Virginia

NWS Baltimore/Washington issued this dense fog advisory at Nov 21, 2012, 7:24 AM EST for Allegany County, Frederick County, Washington County, Maryland; 7 counties in West Virginia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Nov 21, 2012, 7:24 AM EST (12:24 UTC)
Expired
Nov 21, 2012, 10:00 AM EST
In force
3 hr
Issued by
NWS Baltimore/Washington

Counties Allegany County, MD, Frederick County, MD, Washington County, MD, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV

The radar

The Sterling radar (KLWX), 89 km from the middle of the area, began a volume at 12:25 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 Baltimore/Washington wrote its last area forecast discussion before this dense fog advisory went out at Nov 21, 3:48 AM EST, 3 hours 36 minutes earlier.

Area forecast discussion, Nov 21, 3:48 AM EST, 3 hours 36 minutes before
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Hazardous weather outlook, Nov 21, 5:01 AM EST, 2 hours 23 minutes before
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In the hours before

Special weather statement, Nov 21, 5:06 AM EST, 2 hours 18 minutes before
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<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.
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      <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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Special weather statement, Nov 21, 5:21 AM EST, 2 hours 3 minutes before
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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.
      </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>
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Nearby

Dense Fog Advisories in West Virginia, 2012Dense Fog Advisories in Maryland, 2012Every 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.