Alert archive / Illinois / Flash Flood Warnings in 2010

Flash Flood Warning 31, NWS Chicago, IL

November 22, 2010Cook County, Illinois

NWS Chicago, IL issued this flash flood warning at Nov 22, 2010, 4:18 PM CST for Cook County, Illinois. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 22, 2010, 4:18 PM CST (22:18 UTC)
Expired: Nov 22, 2010, 10:00 PM CST
In force: 6 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: None

County Cook County, IL

The radar

The Chicago radar (KLOT), 49 km from the middle of the area, began a volume at 22:18 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this flash flood warning went out at Nov 22, 4:14 PM CST, 4 minutes earlier.

Area forecast discussion, Nov 22, 4:14 PM CST, 4 minutes before

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Hazardous weather outlook, Nov 22, 2:59 PM CST, 1 hour 19 minutes before

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        Please try again in a few minutes.
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In the hours before

Local storm report, Nov 22, 3:31 PM CST, 47 minutes before

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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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Local storm report, Nov 22, 3:40 PM CST, 38 minutes before

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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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Local storm report, Nov 22, 3:46 PM CST, 32 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>
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Local storm report, Nov 22, 3:50 PM CST, 28 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>
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Local storm report, Nov 22, 3:56 PM CST, 22 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, Nov 22, 4:04 PM CST, 14 minutes before

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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>

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 21, 6:19 PM CST	Small Craft Advisory	LOT		9 hr
Nov 22, 3:37 AM CST	Gale Watch	LOT		11 hr
Nov 22, 3:37 AM CST	Small Craft Advisory	LOT		36 hr
Nov 22, 6:57 AM CST	Special Weather Statement	LOT	LaSalle	48 min
Nov 22, 7:44 AM CST	Special Weather Statement	LOT	Cook, Grundy, Kankakee, Kendall, Will	61 min
Nov 22, 8:40 AM CST	Special Weather Statement	LOT	Cook, Kankakee, Will	35 min
Nov 22, 2:06 PM CST	Severe Thunderstorm Warning	LOT	LaSalle, Lee	24 min
Nov 22, 2:16 PM CST	Severe Thunderstorm Warning	LOT	Boone, Ogle, Winnebago	44 min
Nov 22, 2:30 PM CST	Severe Thunderstorm Warning	LOT	DeKalb, LaSalle, Lee	30 min
Nov 22, 2:44 PM CST	Gale Warning	LOT		24 hr
Nov 22, 3:01 PM CST	Severe Thunderstorm Warning	LOT	DeKalb, Kane, LaSalle, Lee	29 min
Nov 22, 3:03 PM CST	Tornado Warning	LOT	Boone, McHenry, Winnebago	27 min
Nov 22, 3:15 PM CST	Severe Thunderstorm Warning	LOT	LaSalle	30 min
Nov 22, 3:23 PM CST	Tornado Warning	LOT	DeKalb, Kane	22 min
Nov 22, 3:30 PM CST	Tornado Warning	LOT	McHenry	15 min
Nov 22, 3:37 PM CST	Severe Thunderstorm Warning	LOT	DeKalb, DuPage, Grundy, Kane, Kendall, LaSalle and 2 more	38 min
Nov 22, 3:49 PM CST	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane	26 min
Nov 22, 4:12 PM CST	Severe Thunderstorm Warning	LOT	Cook, DuPage, Grundy, Kane, Kendall, Lake and 2 more	48 min
Nov 22, 4:42 PM CST	Areal Flood Advisory	LOT	DuPage, Kane, Kendall	2 hr
Nov 22, 4:53 PM CST	Special Marine Warning	LOT		37 min
Nov 22, 4:55 PM CST	Special Weather Statement	LOT	Grundy, Livingston	35 min
Nov 22, 5:59 PM CST	Special Weather Statement	LOT	Cook	31 min

Nearby

Flash Flood Warnings in Illinois, 2010 Every flash flood warning 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.