Alert archive / Missouri / Dense Fog Advisories in 2011

Dense Fog Advisory 5, NWS St. Louis, MO

February 27, 20118 counties in Missouri; Adams County, Brown County, Pike County, Illinois

NWS St. Louis, MO issued this dense fog advisory at Feb 27, 2011, 3:10 PM CST for 8 counties in Missouri; Adams County, Brown County, Pike County, Illinois. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Feb 27, 2011, 3:10 PM CST (21:10 UTC)
Expired: Feb 27, 2011, 9:17 PM CST
In force: 6 hr
Issued by: NWS St. Louis, MO

Counties Adams County, IL, Brown County, IL, Pike County, IL, Audrain County, MO, Knox County, MO, Lewis County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 136 km from the middle of the area, began a volume at 21:12 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 St. Louis, MO wrote its last area forecast discussion before this dense fog advisory went out at Feb 27, 11:54 AM CST, 3 hours 16 minutes earlier.

Area forecast discussion, Feb 27, 11:54 AM CST, 3 hours 16 minutes before

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Hazardous weather outlook, Feb 27, 4:43 AM CST, 10 hours 27 minutes before

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In the hours before

Local storm report, Feb 27, 10:46 AM CST, 4 hours 24 minutes before

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Local storm report, Feb 27, 11:06 AM CST, 4 hours 4 minutes before

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Local storm report, Feb 27, 11:24 AM CST, 3 hours 46 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.
      </p>
      <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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The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 26, 9:49 PM CST	Dense Fog Advisory	LSX	Audrain, Boone, Callaway, Cole, Knox, Lewis and 7 more	6 hr
Feb 27, 10:37 AM CST	Severe Thunderstorm Warning	LSX	Audrain, Pike	23 min
Feb 27, 1:18 PM CST	Flood Watch	LSX	Audrain, Boone, Callaway, Cole, Knox, Lewis and 8 more	11 hr
Feb 27, 5:42 PM CST	Severe Thunderstorm Warning	LSX	Marion, Monroe, Shelby	48 min
Feb 27, 10:40 AM CST	River Flood Warning	LSX	Pike, Scott	22 days

Nearby

Dense Fog Advisories in Missouri, 2011 Dense Fog Advisories in Illinois, 2011 Every dense fog advisory in 2011

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.