Alert archive / Missouri / Flash Flood Watches in 2010

Flash Flood Watch 17, NWS St. Louis, MO

September 23, 201014 counties in Missouri

NWS St. Louis, MO issued this flash flood watch at Sep 23, 2010, 3:49 AM CDT for 14 counties in Missouri. It took effect at Sep 23, 2010, 7:00 PM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Sep 23, 2010, 3:49 AM CDT (08:49 UTC)
In effect from: Sep 23, 2010, 7:00 PM CDT
Expired: Sep 24, 2010, 2:58 AM CDT
In force: 8 hr
Issued by: NWS St. Louis, MO
Flood severity: None

Counties Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Gasconade County, MO, Knox County, MO, Lewis County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 121 km from the middle of the area, began a volume at 08:49 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 flash flood watch 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 flash flood watch went out at Sep 22, 6:10 PM CDT, 9 hours 39 minutes earlier.

Area forecast discussion, Sep 22, 6:10 PM CDT, 9 hours 39 minutes before

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Hazardous weather outlook, Sep 22, 3:49 PM CDT, 12 hours 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.
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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
Sep 23, 11:51 AM CDT	River Flood Warning	LSX	Lewis	33 hr

Nearby

Flash Flood Watches in Missouri, 2010 Every flash flood watch in 2010

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.