Alert archive / Illinois / River Flood Warnings in 2009

River Flood Warning 71, NWS Chicago, IL

April 26, 2009Winnebago County, Illinois

NWS Chicago, IL issued this river flood warning at Apr 26, 2009, 9:23 PM CDT for Winnebago County, Illinois. It took effect at Apr 29, 2009, 7:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: Apr 26, 2009, 9:23 PM CDT (02:23 UTC)
In effect from: Apr 29, 2009, 7:00 AM CDT
Expired: Apr 26, 2009, 9:54 PM CDT
In force
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 02:22 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 Rock River at Latham Park (LATI2). The gauge peaked at 8.57 ft at Apr 27, 2009, 9:00 PM CDT.

Action stage: 8 ft
Minor stage: 9 ft
Moderate stage: 11 ft
Major stage: 13.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05437610, 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 26, 7:36 PM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Apr 26, 7:36 PM CDT, 1 hour 47 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 26, 3:39 PM CDT, 5 hours 44 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 26, 3:24 PM CDT, 5 hours 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 8:08 PM CDT	River Flood Warning	LOT	Lake	7 days
Apr 26, 9:06 PM CDT	River Flood Warning	LOT	Winnebago	23 hr
Apr 27, 3:34 AM CDT	Gale Warning	LOT		11 hr
Apr 27, 3:55 AM CDT	Wind Advisory	LOT	Ford, Iroquois, Kankakee	10 hr
Apr 27, 5:17 AM CDT	River Flood Warning	LOT	Cook	8 days
Apr 27, 5:25 AM CDT	River Flood Advisory	LOT	Cook	36 hr
Apr 27, 5:26 AM CDT	River Flood Watch	LOT	Winnebago	15 hr
Apr 27, 5:26 AM CDT	River Flood Watch	LOT	Winnebago	14 hr
Apr 27, 10:40 AM CDT	River Flood Warning	LOT	Winnebago	10 hr
Apr 27, 10:46 AM CDT	River Flood Advisory	LOT	Winnebago	9 hr
Apr 27, 10:55 AM CDT	River Flood Advisory	LOT	LaSalle	11 hr

Nearby

River Flood Warnings in Illinois, 2009 Every river flood warning in 2009

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.