Alert archive / Illinois / River Flood Warnings in 2016

River Flood Warning 23, NWS Chicago, IL

August 27, 2016Bureau County, LaSalle County, Putnam County, Illinois

NWS Chicago, IL issued this river flood warning at Aug 27, 2016, 2:11 PM CDT for Bureau County, LaSalle County, Putnam County, Illinois. It took effect at Aug 28, 2016, 2:42 AM CDT. It was in force for 5 days.

The area

The counties it named.

The facts

Issued
Aug 27, 2016, 2:11 PM CDT (19:11 UTC)
In effect from
Aug 28, 2016, 2:42 AM CDT
Expired
Sep 2, 2016, 3:11 AM CDT
In force
5 days
Issued by
NWS Chicago, IL
Area
Storm-based polygon
Flood severity
Minor

Counties Bureau County, IL, LaSalle County, IL, Putnam County, IL

The radar

The Chicago radar (KLOT), 101 km from the middle of the area, began a volume at 19:10 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 Illinois River near La Salle (LSLI2).

Action stage
19 ft
Minor stage
20 ft
Moderate stage
27 ft
Major stage
31 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 411925089063901, 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 27, 12:47 PM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Aug 27, 12:47 PM CDT, 1 hour 24 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, Aug 27, 12:00 PM CDT, 2 hours 11 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, Aug 27, 8:14 AM CDT, 5 hours 57 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
Aug 27, 7:30 AM CDTAreal Flood AdvisoryLOTCook, Will4 hr
Aug 27, 10:12 AM CDTRiver Flood WarningLOTKankakee51 hr
Aug 27, 10:19 AM CDTRiver Flood AdvisoryLOTGrundy, Will3 days
Aug 27, 10:19 AM CDTRiver Flood AdvisoryLOTWill40 hr
Aug 27, 2:11 PM CDTRiver Flood WarningLOTLaSalle51 hr
Aug 27, 2:14 PM CDTRiver Flood AdvisoryLOTGrundy3 days

Nearby

River Flood Warnings in Illinois, 2016Every river flood warning in 2016

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.