Alert archive / Missouri / Areal Flood Advisories in 2012

Areal Flood Advisory 3, NWS St. Louis, MO

March 17, 2012Saint Charles County, Missouri

NWS St. Louis, MO issued this areal flood advisory at Mar 17, 2012, 5:13 PM CDT for Saint Charles County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Mar 17, 2012, 5:13 PM CDT (22:13 UTC)
Expired: Mar 17, 2012, 9:00 PM CDT
In force: 4 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

County Saint Charles County, MO

The radar

The St Louis radar (KLSX), 9 km from the middle of the area, began a volume at 22:13 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 areal flood 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 areal flood advisory went out at Mar 17, 3:55 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, Mar 17, 3:55 PM CDT, 1 hour 18 minutes before

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Hazardous weather outlook, Mar 17, 12:10 PM CDT, 5 hours 3 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        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.
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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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In the hours before

Local storm report, Mar 17, 4:10 PM CDT, 1 hour 3 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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      <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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Special weather statement, Mar 17, 4:16 PM CDT, 57 minutes before

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      <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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Local storm report, Mar 17, 4:34 PM CDT, 39 minutes before

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<body>
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      <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>

Local storm report, Mar 17, 4:42 PM CDT, 31 minutes before

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<head>
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  <title>Service Notice</title>
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</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>

Local storm report, Mar 17, 5:09 PM CDT, 4 minutes before

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<html lang="en">
<head>
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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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Mar 17, 5:13 PM CDT, 0 minutes before

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</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 St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 17, 2:22 PM CDT	Flash Flood Warning	LSX	Osage	4 hr
Mar 17, 3:38 PM CDT	Flash Flood Watch	LSX	Crawford, Franklin, Gasconade, Jefferson, Osage, Saint Charles and 6 more	6 hr
Mar 17, 3:59 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	46 min
Mar 17, 4:54 PM CDT	Areal Flood Advisory	LSX	Saint Louis, City of Saint Louis	4 hr
Mar 17, 5:51 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	25 min
Mar 17, 6:13 PM CDT	Flash Flood Warning	LSX	Crawford	6 hr
Mar 17, 6:23 PM CDT	Flash Flood Warning	LSX	Osage	4 hr

Nearby

Areal Flood Advisories in Missouri, 2012 Every areal flood 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.