Alert archive / Illinois / River Flood Warnings in 2008

River Flood Warning 76, NWS Chicago, IL

April 11, 2008LaSalle County, Illinois

NWS Chicago, IL issued this river flood warning at Apr 11, 2008, 5:55 AM CDT for LaSalle County, Illinois. It took effect at Apr 12, 2008, 1:00 AM CDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 2008, 5:55 AM CDT (10:55 UTC)
In effect from
Apr 12, 2008, 1:00 AM CDT
Expired
Apr 12, 2008, 4:05 AM CDT
In force
3 hr
Issued by
NWS Chicago, IL
Flood severity
Minor

County LaSalle County, IL

The radar

The Chicago radar (KLOT), 73 km from the middle of the area, began a volume at 10:55 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 Fox River at Dayton (DAYI2). The gauge peaked at 11.64 ft at Apr 11, 2008, 8:00 PM CDT.

actionminormoderate10121404/1104/1204/13
Action stage
11 ft
Minor stage
12 ft
Moderate stage
14 ft
Major stage
24 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05552500, 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 Apr 11, 3:13 AM CDT, 2 hours 42 minutes earlier.

Area forecast discussion, Apr 11, 3:13 AM CDT, 2 hours 42 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>
Hazardous weather outlook, Apr 11, 3:56 AM CDT, 1 hour 59 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>

In the hours before

Local storm report, Apr 11, 3:09 AM CDT, 2 hours 46 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.

IssuedProductOfficeCountiesLasted
Apr 10, 10:58 PM CDTRiver Flood AdvisoryLOTBoone4 days
Apr 10, 11:17 PM CDTRiver Flood WarningLOTCook6 days
Apr 10, 11:31 PM CDTRiver Flood AdvisoryLOTCook3 days
Apr 11, 4:31 AM CDTRiver Flood WarningLOTBoone2 hr
Apr 11, 4:38 AM CDTRiver Flood WarningLOTOgle7 days
Apr 11, 5:03 AM CDTRiver Flood WarningLOTCook4 hr
Apr 11, 5:17 AM CDTRiver Flood WarningLOTKankakee4 hr
Apr 11, 8:58 AM CDTRiver Flood WarningLOTWinnebago50 hr
Apr 11, 10:05 AM CDTWind AdvisoryLOTDuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and 2 more10 hr
Apr 11, 10:53 AM CDTRiver Flood WarningLOTBureau, LaSalle6 days
Apr 11, 5:17 AM CDTRiver Flood WarningLOTPorter3 days
Apr 11, 5:17 AM CDTRiver Flood WarningLOTJasper, Porter3 days

Nearby

River Flood Warnings in Illinois, 2008Every river flood warning in 2008

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.