Alert archive / Illinois / River Flood Warnings in 2020

River Flood Warning 76, NWS Chicago, IL

May 15, 2020Grundy County, Kankakee County, Will County, Illinois

NWS Chicago, IL issued this river flood warning at May 15, 2020, 4:45 PM CDT for Grundy County, Kankakee County, Will County, Illinois. It took effect at May 15, 2020, 7:00 PM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: May 15, 2020, 4:45 PM CDT (21:45 UTC)
In effect from: May 15, 2020, 7:00 PM CDT
Expired: May 16, 2020, 1:00 PM CDT
In force: 18 hr
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Flood severity: Minor

Counties Grundy County, IL, Kankakee County, IL, Will County, IL

The radar

The Chicago radar (KLOT), 35 km from the middle of the area, began a volume at 21:45 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).

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 May 15, 3:20 PM CDT, 1 hour 25 minutes earlier.

Area forecast discussion, May 15, 3:20 PM CDT, 1 hour 25 minutes before

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Hazardous weather outlook, May 15, 3:54 PM CDT, 51 minutes before

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In the hours before

Local storm report, May 15, 11:20 AM CDT, 5 hours 25 minutes before

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Local storm report, May 15, 11:27 AM CDT, 5 hours 18 minutes before

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Local storm report, May 15, 12:05 PM CDT, 4 hours 40 minutes before

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Local storm report, May 15, 12:06 PM CDT, 4 hours 39 minutes before

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Local storm report, May 15, 12:09 PM CDT, 4 hours 36 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 8:08 PM CDT	Special Weather Statement	LOT	Livingston	22 min
May 14, 8:32 PM CDT	Areal Flood Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston	4 hr
May 14, 8:47 PM CDT	River Flood Warning	LOT	Bureau, LaSalle, Putnam	22 days
May 14, 8:53 PM CDT	River Flood Advisory	LOT	Boone	64 hr
May 14, 9:09 PM CDT	Special Weather Statement	LOT	Livingston	36 min
May 14, 9:14 PM CDT	Flash Flood Warning	LOT	Grundy, Kankakee, LaSalle, Livingston	6 hr
May 14, 9:21 PM CDT	Special Weather Statement	LOT	Kankakee	24 min
May 14, 9:53 PM CDT	Special Weather Statement	LOT	Kankakee	37 min
May 14, 10:11 PM CDT	Flash Flood Warning	LOT	Kankakee	5 hr
May 14, 10:17 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee	43 min
May 14, 10:26 PM CDT	Severe Thunderstorm Warning	LOT	Lee	49 min
May 14, 10:47 PM CDT	Areal Flood Advisory	LOT	Boone, Cook, DeKalb, DuPage, Kane, Kendall and 7 more	4 hr
May 14, 10:57 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, LaSalle, Lee	48 min
May 14, 10:58 PM CDT	Areal Flood Advisory	LOT	Iroquois	5 hr
May 14, 11:09 PM CDT	Flash Flood Warning	LOT	Cook	5 hr
May 14, 11:26 PM CDT	Tornado Warning	LOT	Lee	19 min
May 14, 11:40 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kane, Kendall, LaSalle	50 min
May 14, 11:53 PM CDT	Tornado Warning	LOT	DeKalb, Kane, Kendall	22 min
May 15, 12:04 AM CDT	Areal Flood Advisory	LOT	Lake	3 hr
May 15, 12:11 AM CDT	Flash Flood Warning	LOT	Cook, DeKalb, DuPage, Kane, Kendall, Lake and 2 more	4 hr
May 15, 12:19 AM CDT	Severe Thunderstorm Warning	LOT	DuPage, Kane, Kendall, Will	41 min
May 15, 12:45 AM CDT	Flash Flood Warning	LOT	Lake	4 hr
May 15, 12:57 AM CDT	Special Weather Statement	LOT	Cook	48 min
May 15, 1:20 AM CDT	Areal Flood Warning	LOT	DeKalb, Kendall, LaSalle, Lee, Ogle	9 hr
May 15, 1:28 AM CDT	River Flood Warning	LOT	Kankakee	7 days
May 15, 1:35 AM CDT	Areal Flood Advisory	LOT	Grundy, Kankakee, Kendall, LaSalle, Will	115 min
May 15, 1:49 AM CDT	River Flood Warning	LOT	DuPage	4 days
May 15, 1:50 AM CDT	River Flood Advisory	LOT	DeKalb	36 hr
May 15, 1:55 AM CDT	River Flood Advisory	LOT	Lake	36 hr
May 15, 1:55 AM CDT	River Flood Advisory	LOT	Lake	36 hr
May 15, 1:59 AM CDT	River Flood Warning	LOT	Will	6 days
May 15, 2:02 AM CDT	River Flood Advisory	LOT	Grundy, Kankakee, Will	36 hr
May 15, 2:02 AM CDT	River Flood Advisory	LOT	Grundy	15 hr
May 15, 2:06 AM CDT	River Flood Advisory	LOT	Winnebago	36 hr
May 15, 3:01 AM CDT	Areal Flood Warning	LOT	Grundy, Kankakee, Livingston	6 hr
May 15, 4:05 AM CDT	Areal Flood Warning	LOT	Cook, DeKalb, DuPage, Kane	6 hr
May 15, 4:14 AM CDT	Areal Flood Warning	LOT	Lake, McHenry	6 hr
May 15, 4:39 AM CDT	River Flood Advisory	LOT	Lee	8 days
May 15, 4:43 AM CDT	River Flood Warning	LOT	Lake	11 days
May 15, 4:43 AM CDT	River Flood Warning	LOT	Lake	11 days
May 15, 4:43 AM CDT	River Flood Warning	LOT	Cook	11 days
May 15, 4:43 AM CDT	River Flood Warning	LOT	Cook	64 hr
May 15, 4:48 AM CDT	River Flood Advisory	LOT	Lake	39 hr
May 15, 4:48 AM CDT	River Flood Advisory	LOT	Cook	49 hr
May 15, 10:14 AM CDT	River Flood Warning	LOT	Winnebago	6 days
May 15, 10:14 AM CDT	River Flood Warning	LOT	DeKalb	18 hr
May 15, 10:41 AM CDT	Areal Flood Advisory	LOT	Cook, DeKalb, DuPage, Kane, Kendall, Lake and 4 more	6 hr
May 15, 11:07 AM CDT	River Flood Advisory	LOT	Cook	20 hr
May 15, 11:58 AM CDT	River Flood Warning	LOT	Grundy	7 days
May 15, 11:58 AM CDT	River Flood Warning	LOT	LaSalle	9 days
May 15, 5:00 PM CDT	River Flood Warning	LOT	Grundy	4 days
May 14, 10:43 PM CDT	Special Weather Statement	LOT	Jasper	47 min
May 15, 1:29 AM CDT	River Flood Warning	LOT	Lake	10 hr
May 15, 1:37 AM CDT	Special Weather Statement	LOT	Jasper, Newton, Porter	38 min
May 15, 4:45 PM CDT	River Flood Warning	LOT	Lake, Newton	9 days

Nearby

River Flood Warnings in Illinois, 2020 Every river flood warning in 2020

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.