Alert archive / Illinois / River Flood Warnings in 2007

River Flood Warning 23, NWS Chicago, IL

August 21, 2007Winnebago County, Illinois

NWS Chicago, IL issued this river flood warning at Aug 21, 2007, 10:50 AM CDT for Winnebago County, Illinois. It took effect at Aug 22, 2007, 5:30 PM CDT. It was in force for 11 days.

The area

The counties it named.

The facts

Issued: Aug 21, 2007, 10:50 AM CDT (15:50 UTC)
In effect from: Aug 22, 2007, 5:30 PM CDT
Expired: Sep 2, 2007, 8:14 PM CDT
In force: 11 days
Issued by: NWS Chicago, IL
Flood severity: Minor

County Winnebago County, IL

The radar

The Milwaukee radar (KMKX), 86 km from the middle of the area, began a volume at 15:51 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.

The river

Written for the forecast point Pecatonica River near Shirland (SIRI2).

Action stage: 11 ft
Minor stage: 12 ft
Moderate stage: 14 ft
Major stage: 15.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05437050, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at Aug 20, 6:45 PM CDT, 16 hours 5 minutes earlier.

Area forecast discussion, Aug 20, 6:45 PM CDT, 16 hours 5 minutes before

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Hazardous weather outlook, Aug 20, 4:00 PM CDT, 18 hours 50 minutes before

<!doctype html>
<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.
      </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
Aug 20, 8:43 PM CDT	River Flood Advisory	LOT	Cook	53 hr
Aug 21, 9:19 AM CDT	River Flood Warning	LOT	Kane, McHenry	10 days
Aug 21, 10:50 AM CDT	River Flood Warning	LOT	Winnebago	10 hr
Aug 21, 10:53 AM CDT	River Flood Warning	LOT	Bureau, LaSalle	13 days
Aug 21, 8:22 AM CDT	River Flood Warning	LOT	Lake, Newton	14 days

Nearby

River Flood Warnings in Illinois, 2007 Every river flood warning in 2007

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; the gauge from the NWS water service and the USGS.