Alert archive / Illinois / River Flood Advisories

River Flood Advisories in Illinois, 2020

100 river flood advisories in 2020. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of river flood advisories reaches back to 2005.

River Flood Advisories by county

Each county as a circle sized by its count in 2020. Tap one for its archive.

River Flood Advisories: 100
Busiest month: May42 river flood advisories
Busiest day: April 29, 202011 river flood advisories

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Jan 10, 10:32 AM CST	River Flood Advisory	LOT	Kane, Kendall	9 hr
Jan 10, 7:42 PM CST	River Flood Advisory	LOT	DuPage, Will	37 hr
Jan 11, 8:37 AM CST	River Flood Advisory	LOT	Cook	22 hr
Jan 11, 9:22 AM CST	River Flood Advisory	LOT	Will	11 hr
Jan 11, 8:24 PM CST	River Flood Advisory	LOT	LaSalle	13 hr
Jan 11, 8:24 PM CST	River Flood Advisory	LOT	Grundy	19 hr
Jan 19, 2:21 PM CST	River Flood Advisory	LOT	Lee	10 days
Jan 24, 7:47 PM CST	River Flood Advisory	LOT	Kane, Kendall	39 hr
Jan 29, 6:01 PM CST	River Flood Advisory	LOT	LaSalle	15 hr
Feb 4, 7:52 AM CST	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	13 hr
Feb 18, 9:38 AM CST	River Flood Advisory	LOT	Iroquois	23 hr
Mar 10, 8:47 AM CDT	River Flood Advisory	LOT	DuPage, Will	4 hr
Mar 10, 9:00 AM CDT	River Flood Advisory	LOT	Kane, Kendall	18 days
Mar 10, 10:17 AM CDT	River Flood Advisory	LOT	Winnebago	21 days
Mar 10, 10:17 AM CDT	River Flood Advisory	LOT	Ogle	47 hr
Mar 10, 10:30 AM CDT	River Flood Advisory	LOT	Boone	39 hr
Mar 10, 10:30 AM CDT	River Flood Advisory	LOT	Winnebago	7 days
Mar 19, 8:51 AM CDT	River Flood Advisory	LOT	Iroquois	43 hr
Mar 19, 10:39 AM CDT	River Flood Advisory	LOT	Winnebago	20 hr
Mar 19, 10:39 AM CDT	River Flood Advisory	LOT	Winnebago	21 days
Mar 19, 10:39 AM CDT	River Flood Advisory	LOT	Ogle	21 days
Mar 19, 11:27 AM CDT	River Flood Advisory	LOT	LaSalle	23 hr
Mar 19, 8:37 PM CDT	River Flood Advisory	LOT	Winnebago	21 days
Mar 20, 10:38 AM CDT	River Flood Advisory	LOT	Winnebago	46 hr
Mar 20, 10:38 AM CDT	River Flood Advisory	LOT	Lee	34 hr
Mar 20, 10:55 AM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	23 hr
Mar 27, 9:51 AM CDT	River Flood Advisory	LOT	Ogle	21 days
Mar 28, 2:39 AM CDT	River Flood Advisory	LOT	Boone	8 hr
Mar 28, 2:39 AM CDT	River Flood Advisory	LOT	Winnebago	21 days
Mar 28, 2:39 AM CDT	River Flood Advisory	LOT	Lee	6 days
Mar 28, 2:39 AM CDT	River Flood Advisory	LOT	DeKalb	36 hr
Mar 28, 9:10 AM CDT	River Flood Advisory	LOT	Lake	64 hr
Mar 28, 9:10 AM CDT	River Flood Advisory	LOT	Cook	70 hr
Mar 28, 9:15 AM CDT	River Flood Advisory	LOT	Iroquois	16 hr
Mar 28, 9:50 AM CDT	River Flood Advisory	LOT	LaSalle	3 days
Mar 28, 1:15 PM CDT	River Flood Advisory	LOT	DuPage, Will	32 hr
Mar 29, 8:25 AM CDT	River Flood Advisory	LOT	LaSalle	47 hr
Mar 29, 10:17 AM CDT	River Flood Advisory	LOT	Winnebago	6 days
Apr 26, 3:15 AM CDT	River Flood Advisory	LOT	Grundy	24 hr
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	Cook	6 days
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	Cook	12 hr
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	Kane, Kendall	21 days
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	Will	71 hr
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	DuPage, Will	68 hr
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	Grundy	20 hr
Apr 29, 10:47 AM CDT	River Flood Advisory	LOT	DuPage	20 hr
Apr 29, 11:09 AM CDT	River Flood Advisory	LOT	Boone	4 days
Apr 29, 11:09 AM CDT	River Flood Advisory	LOT	Ogle	3 days
Apr 29, 11:21 AM CDT	River Flood Advisory	LOT	Grundy	10 hr
Apr 29, 1:51 PM CDT	River Flood Advisory	LOT	Iroquois	61 hr
Apr 29, 9:14 PM CDT	River Flood Advisory	LOT	Will	9 hr
Apr 29, 9:33 PM CDT	River Flood Advisory	LOT	Kankakee	9 hr
Apr 29, 9:33 PM CDT	River Flood Advisory	LOT	Grundy, Kankakee, Will	9 hr
Apr 29, 10:53 PM CDT	River Flood Advisory	LOT	Cook	15 hr
Apr 29, 10:55 PM CDT	River Flood Advisory	LOT	Livingston	36 hr
May 14, 10:12 AM CDT	River Flood Advisory	LOT	Cook	51 hr
May 14, 10:12 AM CDT	River Flood Advisory	LOT	DuPage, Will	4 hr
May 14, 11:26 AM CDT	River Flood Advisory	LOT	Grundy	25 hr
May 14, 3:11 PM CDT	River Flood Advisory	LOT	Cook	52 hr
May 14, 3:11 PM CDT	River Flood Advisory	LOT	Will	37 hr
May 14, 3:11 PM CDT	River Flood Advisory	LOT	Iroquois	3 days
May 14, 8:53 PM CDT	River Flood Advisory	LOT	Boone	64 hr
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, 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, 4:39 AM CDT	River Flood Advisory	LOT	Lee	8 days
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, 11:07 AM CDT	River Flood Advisory	LOT	Cook	20 hr
May 15, 7:36 PM CDT	River Flood Advisory	LOT	Ogle	41 hr
May 16, 7:26 PM CDT	River Flood Advisory	LOT	DeKalb	48 hr
May 16, 7:48 PM CDT	River Flood Advisory	LOT	Cook	68 hr
May 16, 7:51 PM CDT	River Flood Advisory	LOT	Iroquois	17 hr
May 17, 1:12 PM CDT	River Flood Advisory	LOT	Winnebago	25 hr
May 17, 1:12 PM CDT	River Flood Advisory	LOT	Winnebago	33 hr
May 17, 9:50 PM CDT	River Flood Advisory	LOT	Cook	15 hr
May 18, 3:12 PM CDT	River Flood Advisory	LOT	Iroquois, Kankakee	52 hr
May 18, 10:39 PM CDT	River Flood Advisory	LOT	Cook	6 hr
May 19, 11:30 AM CDT	River Flood Advisory	LOT	Iroquois	41 hr
May 20, 7:08 PM CDT	River Flood Advisory	LOT	Winnebago	3 days
May 22, 9:25 AM CDT	River Flood Advisory	LOT	Kane, Kendall	39 hr
May 23, 11:58 AM CDT	River Flood Advisory	LOT	Cook	70 hr
May 23, 9:20 PM CDT	River Flood Advisory	LOT	Boone	64 hr
May 23, 9:20 PM CDT	River Flood Advisory	LOT	Winnebago	3 days
May 23, 9:20 PM CDT	River Flood Advisory	LOT	Ogle	4 days
May 23, 11:57 PM CDT	River Flood Advisory	LOT	Cook	7 hr
May 24, 12:38 AM CDT	River Flood Advisory	LOT	Cook	16 hr
May 24, 12:43 AM CDT	River Flood Advisory	LOT	LaSalle	3 days
May 24, 8:57 AM CDT	River Flood Advisory	LOT	Grundy	25 hr
May 24, 9:01 AM CDT	River Flood Advisory	LOT	Winnebago	21 hr
May 24, 9:17 AM CDT	River Flood Advisory	LOT	Winnebago	16 hr
May 24, 3:52 PM CDT	River Flood Advisory	LOT	Kankakee	13 hr
May 24, 8:05 PM CDT	River Flood Advisory	LOT	Lee	47 hr
May 25, 9:16 AM CDT	River Flood Advisory	LOT	Boone	48 hr
Jun 28, 7:56 PM CDT	River Flood Advisory	LOT	Iroquois	25 hr
Oct 22, 6:35 AM CDT	River Flood Advisory	LOT	DuPage, Will	24 hr
Dec 12, 3:12 PM CST	River Flood Advisory	LOT	DuPage, Will	12 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2019 2021

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.