Alert archive / Illinois / River Flood Warnings in 2015

River Flood Warning 101, NWS Chicago, IL

December 26, 2015Iroquois County, Illinois

NWS Chicago, IL issued this river flood warning at Dec 26, 2015, 10:31 AM CST for Iroquois County, Illinois. It took effect at Dec 28, 2015, 5:20 PM CST. It was in force for 7 days.

The area

The counties it named.

The facts

Issued: Dec 26, 2015, 10:31 AM CST (16:31 UTC)
In effect from: Dec 28, 2015, 5:20 PM CST
Expired: Jan 4, 2016, 7:53 PM CST
In force: 7 days
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: Minor

County Iroquois County, IL

The radar

The Chicago radar (KLOT), 98 km from the middle of the area, began a volume at 16:32 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 Iroquois River at Iroquois (IRQI2). The gauge peaked at 23.06 ft at Dec 29, 2015, 7:00 PM CST.

Action stage: 17 ft
Minor stage: 18 ft
Moderate stage: 24 ft
Major stage: 25 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05525000, 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 Dec 26, 10:09 AM CST, 22 minutes earlier.

Area forecast discussion, Dec 26, 10:09 AM CST, 22 minutes before

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Hazardous weather outlook, Dec 26, 4:40 AM CST, 5 hours 51 minutes before

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<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        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
Dec 25, 8:12 PM CST	River Flood Watch	LOT	Iroquois	4 days
Dec 26, 4:10 AM CST	Flash Flood Watch	LOT	Ford, Iroquois	62 hr
Dec 26, 10:31 AM CST	River Flood Warning	LOT	Iroquois	5 days
Dec 26, 10:31 AM CST	River Flood Warning	LOT	LaSalle	6 days
Dec 26, 10:39 AM CST	River Flood Advisory	LOT	Iroquois, Kankakee	5 days
Dec 26, 10:39 AM CST	River Flood Advisory	LOT	Grundy, Will	6 days
Dec 26, 10:39 AM CST	River Flood Advisory	LOT	LaSalle	3 days
Dec 26, 11:38 AM CST	River Flood Warning	LOT	LaSalle	8 days
Dec 26, 11:42 AM CST	River Flood Advisory	LOT	Grundy	5 days
Dec 26, 3:32 PM CST	Winter Storm Watch	LOT	Boone, DeKalb, Kane, Kendall, Lake, LaSalle and 4 more	24 hr
Dec 26, 3:34 PM CST	Lakeshore Flood Watch	LOT	Lake	23 hr
Dec 26, 4:05 PM CST	Gale Watch	LOT		23 hr
Dec 26, 4:05 PM CST	Marine Dense Fog Advisory	LOT		11 hr
Dec 25, 8:12 PM CST	River Flood Watch	LOT	Lake, Newton	4 days
Dec 26, 10:31 AM CST	River Flood Warning	LOT	Lake, Newton	19 days
Dec 26, 10:39 AM CST	River Flood Advisory	LOT	Newton	5 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.