Alert archive / Illinois / River Flood Warnings in 2015

River Flood Warning 74, NWS Chicago, IL

July 12, 2015Grundy County, Will County, Illinois

NWS Chicago, IL issued this river flood warning at Jul 12, 2015, 8:39 PM CDT for Grundy County, Will County, Illinois. It took effect at Jul 13, 2015, 9:38 PM CDT. It was in force for 57 hr.

The area

The counties it named.

The facts

Issued: Jul 12, 2015, 8:39 PM CDT (01:39 UTC)
In effect from: Jul 13, 2015, 9:38 PM CDT
Expired: Jul 16, 2015, 7:00 AM CDT
In force: 57 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: Minor

Counties Grundy County, IL, Will County, IL

The radar

The Chicago radar (KLOT), 28 km from the middle of the area, began a volume at 01:45 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 Kankakee River near Wilmington (WLMI2). The gauge peaked at 6.92 ft at Jul 14, 2015, 9:00 AM CDT.

Action stage: 5 ft
Minor stage: 6.5 ft
Moderate stage: 8 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05527500, 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 Jul 12, 7:03 PM CDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jul 12, 7:03 PM CDT, 1 hour 36 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, Jul 12, 4:32 PM CDT, 4 hours 7 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
Jul 12, 7:57 PM CDT	Areal Flood Warning	LOT	Ford, Iroquois, Livingston	18 hr
Jul 13, 4:18 AM CDT	Heat Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Lee and 1 more	15 hr
Jul 13, 4:34 AM CDT	Special Marine Warning	LOT		116 min
Jul 13, 5:05 AM CDT	Severe Thunderstorm Warning	LOT	Boone, McHenry, Winnebago	55 min
Jul 13, 5:37 AM CDT	Severe Thunderstorm Warning	LOT	Lake	38 min
Jul 13, 5:41 AM CDT	Severe Thunderstorm Warning	LOT	Boone, Cook, DeKalb, DuPage, Kane, Lake and 3 more	64 min
Jul 13, 6:05 AM CDT	Special Marine Warning	LOT		115 min
Jul 13, 6:08 AM CDT	Special Weather Statement	LOT	Lee	52 min
Jul 13, 6:22 AM CDT	Severe Thunderstorm Warning	LOT	Cook, DeKalb, DuPage, Kane, Kendall, Will	53 min
Jul 13, 6:28 AM CDT	Areal Flood Advisory	LOT	Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more	4 hr
Jul 13, 6:55 AM CDT	Special Weather Statement	LOT	Kendall, Will	50 min
Jul 13, 7:19 AM CDT	Special Weather Statement	LOT	Grundy, Kankakee	41 min
Jul 13, 7:47 AM CDT	Special Weather Statement	LOT	Kankakee	43 min
Jul 13, 7:55 AM CDT	Areal Flood Advisory	LOT	Cook, DeKalb, Ford, Grundy, Iroquois, Kankakee and 5 more	6 hr
Jul 13, 8:17 AM CDT	Severe Thunderstorm Warning	LOT	Ford, Livingston	43 min
Jul 13, 8:46 AM CDT	Special Weather Statement	LOT	Ford, Iroquois	59 min
Jul 13, 9:53 AM CDT	River Flood Advisory	LOT	Kankakee	4 days
Jul 13, 12:07 PM CDT	River Flood Warning	LOT	Grundy	67 hr
Jul 13, 12:07 PM CDT	River Flood Warning	LOT	LaSalle	3 days
Jul 13, 1:09 PM CDT	Areal Flood Warning	LOT	Ford, Iroquois, Livingston	6 hr
Jul 13, 4:59 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	61 min
Jul 13, 5:37 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, LaSalle, Livingston	53 min
Jul 13, 6:03 PM CDT	Areal Flood Advisory	LOT	Grundy, LaSalle	4 hr
Jul 13, 6:29 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Grundy, Kankakee, Livingston	61 min
Jul 13, 6:38 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, Will	52 min
Jul 13, 6:40 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	35 min
Jul 13, 9:28 AM CDT	River Flood Warning	LOT	Jasper	4 days

Nearby

River Flood Warnings in Illinois, 2015 Every river flood warning in 2015

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.