Alert archive / Illinois / River Flood Warnings in 2015

River Flood Warning 83, NWS Chicago, IL

September 18, 2015Lake County, Illinois

NWS Chicago, IL issued this river flood warning at Sep 18, 2015, 9:38 AM CDT for Lake County, Illinois. It took effect at Sep 19, 2015, 5:30 AM CDT. It was in force for 5 days.

The area

The counties it named.

The facts

Issued: Sep 18, 2015, 9:38 AM CDT (14:38 UTC)
In effect from: Sep 19, 2015, 5:30 AM CDT
Expired: Sep 24, 2015, 4:00 AM CDT
In force: 5 days
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: Minor

County Lake County, IL

The radar

The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 14:39 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 Des Plaines River near Gurnee (GUNI2). The gauge peaked at 6.13 ft at Sep 19, 2015, 3:00 AM CDT.

Action stage: 6.5 ft
Minor stage: 7 ft
Moderate stage: 9 ft
Major stage: 11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05528000, 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 18, 8:51 AM CDT, 47 minutes earlier.

Area forecast discussion, Sep 18, 8:51 AM CDT, 47 minutes before

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Hazardous weather outlook, Sep 18, 4:08 AM CDT, 5 hours 30 minutes before

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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.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 18, 12:31 AM CDT	Flash Flood Warning	LOT	Lake, McHenry	8 hr
Sep 18, 1:15 AM CDT	Flash Flood Warning	LOT	Lee, Ogle	8 hr
Sep 18, 3:43 AM CDT	Flash Flood Watch	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more	23 hr
Sep 18, 9:38 AM CDT	River Flood Warning	LOT	Lake	5 days
Sep 18, 9:57 AM CDT	River Flood Watch	LOT	Kane, McHenry	7 days
Sep 18, 9:57 AM CDT	River Flood Watch	LOT	Kane, Kendall	4 days
Sep 18, 9:57 AM CDT	River Flood Watch	LOT		63 hr
Sep 18, 3:01 PM CDT	Gale Warning	LOT		20 hr
Sep 18, 3:16 PM CDT	Beach Hazards Statement	LOT	Lake	31 hr
Sep 18, 4:44 PM CDT	Tornado Warning	LOT	Cook, Will	31 min
Sep 18, 5:32 PM CDT	Flash Flood Warning	LOT	Cook, Kendall, Will	6 hr
Sep 18, 6:27 PM CDT	Flash Flood Warning	LOT	DeKalb, Grundy, Kane, Kendall, LaSalle	6 hr
Sep 18, 6:51 PM CDT	Flash Flood Warning	LOT	Cook, DeKalb, DuPage, Kane, Lake, McHenry	6 hr

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.