Alert archive / Illinois / River Flood Advisories in 2017

River Flood Advisory 13, NWS Chicago, IL

January 18, 2017Ogle County, Illinois

NWS Chicago, IL issued this river flood advisory at Jan 18, 2017, 12:30 PM CST for Ogle County, Illinois. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: Jan 18, 2017, 12:30 PM CST (18:30 UTC)
Expired: Jan 20, 2017, 12:29 AM CST
In force: 36 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon

County Ogle County, IL

The radar

The Chicago radar (KLOT), 113 km from the middle of the area, began a volume at 18:32 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 Byron (BYRI2). The gauge peaked at 13.50 ft at Jan 19, 2017, 12:00 AM CST.

Action stage: 10.5 ft
Minor stage: 13 ft
Moderate stage: 14 ft
Major stage: 16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05440700, 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 advisory 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 advisory went out at Jan 18, 11:32 AM CST, 58 minutes earlier.

Area forecast discussion, Jan 18, 11:32 AM CST, 58 minutes before

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Hazardous weather outlook, Jan 18, 3:44 AM CST, 8 hours 46 minutes before

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<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.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 17, 8:40 PM CST	River Flood Warning	LOT	LaSalle	37 hr
Jan 18, 10:41 AM CST	River Flood Warning	LOT	Lake	8 days
Jan 18, 12:52 PM CST	River Flood Advisory	LOT	Boone	36 hr

Nearby

River Flood Advisories in Illinois, 2017 Every river flood advisory in 2017

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.