Alert archive / Illinois / River Flood Warnings in 2018

River Flood Warning 99, NWS Chicago, IL

September 3, 2018Winnebago County, Illinois

NWS Chicago, IL issued this river flood warning at Sep 3, 2018, 12:23 AM CDT for Winnebago County, Illinois. It took effect at Sep 3, 2018, 7:00 AM CDT. It was in force for 14 days.

The area

The counties it named.

The facts

Issued: Sep 3, 2018, 12:23 AM CDT (05:23 UTC)
In effect from: Sep 3, 2018, 7:00 AM CDT
Expired: Sep 16, 2018, 7:56 PM CDT
In force: 14 days
Issued by: NWS Chicago, IL
Area: Storm-based polygon
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 05:23 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 11.48 ft at Sep 10, 2018, 1:00 AM 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 Sep 2, 8:47 PM CDT, 3 hours 36 minutes earlier.

Area forecast discussion, Sep 2, 8:47 PM CDT, 3 hours 36 minutes before

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  <title>Service Notice</title>
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</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, Sep 2, 3:36 PM CDT, 8 hours 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>

In the hours before

Special weather statement, Sep 2, 7:12 PM CDT, 5 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 2, 7:02 PM CDT	Areal Flood Advisory	LOT	Boone, DeKalb, McHenry, Ogle, Winnebago	6 hr
Sep 2, 7:12 PM CDT	Special Weather Statement	LOT	Boone, Ogle	48 min
Sep 2, 9:05 PM CDT	River Flood Watch	LOT	Winnebago	24 hr
Sep 2, 9:05 PM CDT	River Flood Watch	LOT	Winnebago	3 hr
Sep 2, 9:22 PM CDT	River Flood Advisory	LOT	Lee	24 hr
Sep 2, 9:22 PM CDT	River Flood Advisory	LOT	Kane, Kendall	5 days
Sep 3, 12:27 AM CDT	River Flood Watch	LOT	Ogle	10 hr
Sep 3, 1:00 AM CDT	Areal Flood Advisory	LOT	Boone, DeKalb, Kane, McHenry, Ogle, Winnebago	10 hr
Sep 3, 6:20 AM CDT	Areal Flood Advisory	LOT	Cook, Lake	3 hr
Sep 3, 8:42 AM CDT	River Flood Warning	LOT	Cook	62 hr
Sep 3, 8:42 AM CDT	River Flood Warning	LOT	Kane, McHenry	7 days
Sep 3, 9:36 AM CDT	Areal Flood Advisory	LOT	Lake	114 min
Sep 3, 10:19 AM CDT	River Flood Warning	LOT	Winnebago	13 days
Sep 3, 10:19 AM CDT	River Flood Warning	LOT	Ogle	5 days
Sep 3, 10:37 AM CDT	River Flood Watch	LOT	Boone	38 hr
Sep 3, 11:12 AM CDT	River Flood Warning	LOT	Winnebago	3 days
Sep 3, 11:49 AM CDT	River Flood Advisory	LOT	Lake	36 hr
Sep 3, 11:49 AM CDT	River Flood Advisory	LOT	Lake	36 hr
Sep 3, 12:38 PM CDT	Areal Flood Advisory	LOT	Boone, McHenry, Winnebago	52 min
Sep 3, 12:58 PM CDT	Flash Flood Watch	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	11 hr
Sep 3, 1:35 PM CDT	Special Weather Statement	LOT	McHenry	40 min
Sep 3, 1:37 PM CDT	Special Weather Statement	LOT	DuPage	23 min
Sep 3, 1:39 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Will	36 min
Sep 3, 1:39 PM CDT	Tornado Warning	LOT	Lake, McHenry	25 min
Sep 3, 1:54 PM CDT	Special Weather Statement	LOT	Cook	36 min
Sep 3, 1:56 PM CDT	Special Marine Warning	LOT		64 min
Sep 3, 2:10 PM CDT	Areal Flood Warning	LOT	Cook, DuPage	3 hr
Sep 3, 2:11 PM CDT	Special Weather Statement	LOT	DeKalb, Kane	34 min
Sep 3, 2:15 PM CDT	Special Weather Statement	LOT	Cook	15 min
Sep 3, 2:26 PM CDT	Severe Thunderstorm Warning	LOT	Cook	19 min
Sep 3, 2:58 PM CDT	Special Marine Warning	LOT		36 min
Sep 3, 3:07 PM CDT	Special Weather Statement	LOT	Grundy	38 min
Sep 3, 3:10 PM CDT	Special Weather Statement	LOT	Kane	35 min
Sep 3, 3:45 PM CDT	Special Weather Statement	LOT	DuPage	30 min
Sep 3, 3:50 PM CDT	River Flood Warning	LOT	Lake	3 days
Sep 3, 3:50 PM CDT	River Flood Warning	LOT	Lake	39 hr
Sep 3, 3:50 PM CDT	River Flood Warning	LOT	Kane, Kendall	50 hr
Sep 3, 4:07 PM CDT	Special Weather Statement	LOT	Will	38 min
Sep 3, 4:24 PM CDT	River Flood Advisory	LOT	Cook	63 hr
Sep 3, 4:40 PM CDT	Special Weather Statement	LOT	Kankakee	35 min
Sep 3, 4:50 PM CDT	Areal Flood Advisory	LOT	Cook	115 min
Sep 3, 4:53 PM CDT	River Flood Advisory	LOT	Cook	32 hr
Sep 3, 5:15 PM CDT	Areal Flood Warning	LOT	Cook, DuPage	2 hr
Sep 3, 6:43 PM CDT	Areal Flood Advisory	LOT	Cook	2 hr
Sep 3, 3:43 PM CDT	Special Weather Statement	LOT	Porter	47 min
Sep 3, 5:17 PM CDT	Special Weather Statement	LOT	Lake	43 min

Nearby

River Flood Warnings in Illinois, 2018 Every river flood warning in 2018

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.