Alert archive / Illinois / River Flood Advisories

River Flood Advisories in Illinois, 2019

260 river flood advisories in 2019. 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 2019. Tap one for its archive.

River Flood Advisories: 260
Busiest month: May67 river flood advisories
Busiest day: May 9, 201912 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 21, 7:12 PM CST	River Flood Advisory	LOT	Lee	12 hr
Jan 23, 9:16 AM CST	River Flood Advisory	LOT	Iroquois	62 hr
Jan 25, 10:04 AM CST	River Flood Advisory	LOT	Lee	9 days
Jan 26, 8:37 PM CST	River Flood Advisory	LOT	Winnebago	24 hr
Jan 28, 3:42 PM CST	River Flood Advisory	LOT	Winnebago	68 hr
Jan 28, 3:47 PM CST	River Flood Advisory	LOT	Ogle	7 days
Jan 29, 8:42 PM CST	River Flood Advisory	LOT	Winnebago	21 days
Feb 2, 10:31 AM CST	River Flood Advisory	LOT	Winnebago	7 days
Feb 3, 10:01 AM CST	River Flood Advisory	LOT	Will	3 days
Feb 3, 10:01 AM CST	River Flood Advisory	LOT	Boone	48 hr
Feb 3, 10:01 AM CST	River Flood Advisory	LOT	Iroquois	5 days
Feb 3, 10:11 AM CST	River Flood Advisory	LOT	Grundy	6 days
Feb 3, 10:11 AM CST	River Flood Advisory	LOT	LaSalle	50 hr
Feb 3, 8:49 PM CST	River Flood Advisory	LOT	Winnebago	21 days
Feb 3, 8:49 PM CST	River Flood Advisory	LOT	Winnebago	21 days
Feb 3, 8:49 PM CST	River Flood Advisory	LOT	Winnebago	23 hr
Feb 3, 8:49 PM CST	River Flood Advisory	LOT	Lee	21 days
Feb 3, 9:23 PM CST	River Flood Advisory	LOT	Kane, Kendall	7 days
Feb 3, 9:23 PM CST	River Flood Advisory	LOT	LaSalle	24 hr
Feb 4, 11:22 AM CST	River Flood Advisory	LOT	Iroquois	34 hr
Feb 4, 5:10 PM CST	River Flood Advisory	LOT	Cook	4 hr
Feb 4, 9:07 PM CST	River Flood Advisory	LOT	Lake	3 days
Feb 5, 9:25 AM CST	River Flood Advisory	LOT	Winnebago	13 hr
Feb 5, 11:44 AM CST	River Flood Advisory	LOT	Lake	36 hr
Feb 6, 11:21 AM CST	River Flood Advisory	LOT	Lake	36 hr
Feb 6, 11:21 AM CST	River Flood Advisory	LOT	Cook	36 hr
Feb 7, 9:21 AM CST	River Flood Advisory	LOT	Will	54 hr
Feb 7, 9:45 AM CST	River Flood Advisory	LOT	Kankakee	4 days
Feb 7, 10:00 AM CST	River Flood Advisory	LOT	Kane, McHenry	21 days
Feb 7, 10:14 AM CST	River Flood Advisory	LOT	Cook	23 hr
Feb 7, 10:16 AM CST	River Flood Advisory	LOT	Boone	24 hr
Feb 7, 10:20 AM CST	River Flood Advisory	LOT	LaSalle	21 hr
Feb 8, 9:12 AM CST	River Flood Advisory	LOT	Kane, McHenry	48 hr
Feb 8, 9:15 AM CST	River Flood Advisory	LOT	LaSalle	45 hr
Feb 8, 10:29 AM CST	River Flood Advisory	LOT	Grundy, Kankakee, Will	4 days
Feb 8, 10:40 AM CST	River Flood Advisory	LOT	Winnebago	48 hr
Feb 8, 10:40 AM CST	River Flood Advisory	LOT	Winnebago	71 hr
Feb 9, 10:22 AM CST	River Flood Advisory	LOT	Ogle	7 days
Feb 9, 7:34 PM CST	River Flood Advisory	LOT	Kane, Kendall	8 days
Feb 9, 8:07 PM CST	River Flood Advisory	LOT	Winnebago	61 hr
Feb 10, 9:07 PM CST	River Flood Advisory	LOT	Winnebago	71 hr
Feb 12, 7:36 PM CST	River Flood Advisory	LOT	LaSalle	41 hr
Feb 15, 10:31 AM CST	River Flood Advisory	LOT	LaSalle	48 hr
Feb 22, 7:40 PM CST	River Flood Advisory	LOT	Lee	13 hr
Feb 23, 8:17 PM CST	River Flood Advisory	LOT	LaSalle	36 hr
Feb 23, 8:17 PM CST	River Flood Advisory	LOT	Ogle	4 days
Feb 23, 8:55 PM CST	River Flood Advisory	LOT	LaSalle	4 days
Feb 24, 1:54 AM CST	River Flood Advisory	LOT	Will	26 hr
Feb 24, 10:02 AM CST	River Flood Advisory	LOT	Boone	43 hr
Feb 24, 10:36 AM CST	River Flood Advisory	LOT	Kane, Kendall	52 hr
Feb 28, 7:32 PM CST	River Flood Advisory	LOT	Lee	6 days
Mar 9, 10:39 AM CST	River Flood Advisory	LOT	Ogle	70 hr
Mar 9, 10:39 AM CST	River Flood Advisory	LOT	Boone	71 hr
Mar 9, 10:41 AM CST	River Flood Advisory	LOT	Lee	3 min
Mar 9, 10:53 AM CST	River Flood Advisory	LOT	Lake	33 hr
Mar 9, 10:53 AM CST	River Flood Advisory	LOT	Kane, McHenry	7 days
Mar 9, 10:53 AM CST	River Flood Advisory	LOT	Kane, Kendall	7 days
Mar 9, 10:53 AM CST	River Flood Advisory	LOT	LaSalle	4 days
Mar 10, 10:39 AM CDT	River Flood Advisory	LOT	Iroquois	11 hr
Mar 10, 11:44 AM CDT	River Flood Advisory	LOT	LaSalle	35 hr
Mar 11, 10:33 PM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	6 days
Mar 13, 10:50 AM CDT	River Flood Advisory	LOT	Lake	4 days
Mar 13, 11:29 AM CDT	River Flood Advisory	LOT	LaSalle	4 days
Mar 13, 8:10 PM CDT	River Flood Advisory	LOT	LaSalle	55 hr
Mar 13, 8:10 PM CDT	River Flood Advisory	LOT	Cook	59 hr
Mar 14, 9:49 AM CDT	River Flood Advisory	LOT	Lake	4 days
Mar 14, 10:26 PM CDT	River Flood Advisory	LOT	Will	36 hr
Mar 29, 7:30 PM CDT	River Flood Advisory	LOT	Iroquois	35 hr
Mar 30, 8:50 PM CDT	River Flood Advisory	LOT	LaSalle	25 hr
Mar 31, 9:14 PM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	4 days
Apr 14, 10:09 PM CDT	River Flood Advisory	LOT	Iroquois	36 hr
Apr 15, 10:36 AM CDT	River Flood Advisory	LOT	Iroquois	24 hr
Apr 16, 11:04 AM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	6 days
Apr 28, 8:52 PM CDT	River Flood Advisory	LOT	Will	70 hr
Apr 29, 9:14 AM CDT	River Flood Advisory	LOT	Will	34 hr
Apr 29, 9:14 AM CDT	River Flood Advisory	LOT	Cook	3 days
Apr 29, 9:55 AM CDT	River Flood Advisory	LOT	Ogle	8 days
Apr 29, 11:09 AM CDT	River Flood Advisory	LOT	Grundy	24 hr
Apr 29, 11:09 AM CDT	River Flood Advisory	LOT	LaSalle	10 hr
Apr 29, 2:04 PM CDT	River Flood Advisory	LOT	Will	36 hr
Apr 29, 2:25 PM CDT	River Flood Advisory	LOT	Cook	24 hr
Apr 29, 8:58 PM CDT	River Flood Advisory	LOT	Lee	7 days
Apr 30, 9:01 AM CDT	River Flood Advisory	LOT	Boone	5 days
Apr 30, 9:01 AM CDT	River Flood Advisory	LOT	Winnebago	3 days
Apr 30, 10:44 AM CDT	River Flood Advisory	LOT	Cook	68 hr
Apr 30, 10:44 AM CDT	River Flood Advisory	LOT	Grundy	17 hr
Apr 30, 10:44 AM CDT	River Flood Advisory	LOT	Iroquois	4 days
Apr 30, 10:44 AM CDT	River Flood Advisory	LOT	DuPage	42 hr
Apr 30, 10:44 AM CDT	River Flood Advisory	LOT	Kankakee	3 days
Apr 30, 10:44 AM CDT	River Flood Advisory	LOT	Grundy, Kankakee, Will	23 hr
Apr 30, 8:54 PM CDT	River Flood Advisory	LOT	Cook	13 hr
May 1, 4:19 AM CDT	River Flood Advisory	LOT	Lake	11 hr
May 1, 4:19 AM CDT	River Flood Advisory	LOT	Lake	34 hr
May 1, 4:19 AM CDT	River Flood Advisory	LOT	Cook	3 days
May 1, 9:50 AM CDT	River Flood Advisory	LOT	Winnebago	5 days
May 1, 9:50 AM CDT	River Flood Advisory	LOT	Winnebago	4 days
May 3, 3:20 PM CDT	River Flood Advisory	LOT	Lake	16 hr
May 7, 11:30 AM CDT	River Flood Advisory	LOT	Cook	26 hr
May 7, 11:30 AM CDT	River Flood Advisory	LOT	Will	22 hr
May 7, 11:37 AM CDT	River Flood Advisory	LOT	Grundy	10 hr
May 8, 8:57 AM CDT	River Flood Advisory	LOT	Ogle	5 days
May 9, 5:23 AM CDT	River Flood Advisory	LOT	Lake	28 hr
May 9, 5:23 AM CDT	River Flood Advisory	LOT	Cook	6 hr
May 9, 5:23 AM CDT	River Flood Advisory	LOT	Will	38 hr
May 9, 5:23 AM CDT	River Flood Advisory	LOT	Will	43 hr
May 9, 9:56 AM CDT	River Flood Advisory	LOT	Boone	69 hr
May 9, 9:56 AM CDT	River Flood Advisory	LOT	Winnebago	57 hr
May 9, 9:56 AM CDT	River Flood Advisory	LOT	Winnebago	69 hr
May 9, 9:56 AM CDT	River Flood Advisory	LOT	Winnebago	6 days
May 9, 9:56 AM CDT	River Flood Advisory	LOT	Lee	4 days
May 9, 11:08 AM CDT	River Flood Advisory	LOT	Cook	68 hr
May 9, 11:08 AM CDT	River Flood Advisory	LOT	Cook	44 hr
May 9, 11:22 AM CDT	River Flood Advisory	LOT	Grundy	62 hr
May 9, 9:57 PM CDT	River Flood Advisory	LOT	Kankakee	46 hr
May 11, 9:47 AM CDT	River Flood Advisory	LOT	Lake	3 days
May 11, 10:54 AM CDT	River Flood Advisory	LOT	Cook	67 hr
May 16, 9:55 AM CDT	River Flood Advisory	LOT	Iroquois	4 days
May 16, 2:36 PM CDT	River Flood Advisory	LOT	LaSalle	19 hr
May 16, 2:40 PM CDT	River Flood Advisory	LOT	LaSalle	4 days
May 16, 8:13 PM CDT	River Flood Advisory	LOT	Kankakee	3 days
May 17, 9:22 AM CDT	River Flood Advisory	LOT	Kane, Kendall	31 hr
May 18, 7:37 PM CDT	River Flood Advisory	LOT	LaSalle	33 hr
May 21, 11:11 AM CDT	River Flood Advisory	LOT	LaSalle	24 hr
May 22, 5:43 AM CDT	River Flood Advisory	LOT	Kane, Kendall	54 hr
May 22, 5:43 AM CDT	River Flood Advisory	LOT	LaSalle	37 hr
May 22, 8:46 AM CDT	River Flood Advisory	LOT	Will	11 hr
May 22, 11:17 AM CDT	River Flood Advisory	LOT	Grundy	24 hr
May 23, 1:55 AM CDT	River Flood Advisory	LOT	Winnebago	17 hr
May 23, 1:55 AM CDT	River Flood Advisory	LOT	Ogle	35 hr
May 23, 2:08 AM CDT	River Flood Advisory	LOT	Will	17 hr
May 23, 9:05 PM CDT	River Flood Advisory	LOT	Kankakee	36 hr
May 24, 11:40 AM CDT	River Flood Advisory	LOT	Cook	7 days
May 24, 11:40 AM CDT	River Flood Advisory	LOT	Cook	67 hr
May 24, 11:40 AM CDT	River Flood Advisory	LOT	Cook	61 hr
May 24, 11:40 AM CDT	River Flood Advisory	LOT	Will	58 hr
May 24, 11:40 AM CDT	River Flood Advisory	LOT	Will	49 hr
May 25, 5:04 AM CDT	River Flood Advisory	LOT	Winnebago	28 hr
May 25, 5:04 AM CDT	River Flood Advisory	LOT	Ogle	54 hr
May 25, 5:04 AM CDT	River Flood Advisory	LOT	Lee	15 days
May 25, 6:53 PM CDT	River Flood Advisory	LOT	Kane, Kendall	25 hr
May 26, 9:15 AM CDT	River Flood Advisory	LOT	Winnebago	25 hr
May 26, 9:15 AM CDT	River Flood Advisory	LOT	Winnebago	25 hr
May 26, 8:05 PM CDT	River Flood Advisory	LOT	LaSalle	13 hr
May 27, 11:38 AM CDT	River Flood Advisory	LOT	Grundy	5 days
May 27, 7:13 PM CDT	River Flood Advisory	LOT	Will	3 days
May 27, 7:29 PM CDT	River Flood Advisory	LOT	Winnebago	36 hr
May 27, 7:37 PM CDT	River Flood Advisory	LOT	Winnebago	62 hr
May 27, 7:43 PM CDT	River Flood Advisory	LOT	Ogle	72 hr
May 28, 9:25 AM CDT	River Flood Advisory	LOT	Will	25 hr
May 29, 9:38 AM CDT	River Flood Advisory	LOT	Cook	12 hr
May 29, 10:45 AM CDT	River Flood Advisory	LOT	LaSalle	10 hr
May 29, 9:35 PM CDT	River Flood Advisory	LOT	Boone	3 days
May 30, 9:34 AM CDT	River Flood Advisory	LOT	Winnebago	5 days
May 30, 9:34 AM CDT	River Flood Advisory	LOT	Winnebago	10 hr
May 30, 7:54 PM CDT	River Flood Advisory	LOT	LaSalle	2 hr
May 30, 8:01 PM CDT	River Flood Advisory	LOT	Kankakee	18 hr
May 31, 10:38 AM CDT	River Flood Advisory	LOT	Iroquois	10 hr
Jun 4, 8:41 PM CDT	River Flood Advisory	LOT	LaSalle	54 hr
Jun 5, 7:30 AM CDT	River Flood Advisory	LOT	LaSalle	36 hr
Jun 5, 10:26 AM CDT	River Flood Advisory	LOT	Cook	39 hr
Jun 7, 5:58 AM CDT	River Flood Advisory	LOT	Boone	36 hr
Jun 20, 11:58 AM CDT	River Flood Advisory	LOT	LaSalle	51 hr
Jun 27, 2:22 AM CDT	River Flood Advisory	LOT	Cook	4 hr
Jun 27, 6:21 AM CDT	River Flood Advisory	LOT	Cook	27 hr
Jun 30, 9:18 PM CDT	River Flood Advisory	LOT	Grundy	13 hr
Jun 30, 9:18 PM CDT	River Flood Advisory	LOT	LaSalle	24 hr
Jun 30, 9:18 PM CDT	River Flood Advisory	LOT	Kane, McHenry	6 days
Jun 30, 9:18 PM CDT	River Flood Advisory	LOT	Kane, Kendall	21 days
Jun 30, 9:18 PM CDT	River Flood Advisory	LOT	Iroquois	22 hr
Jul 2, 9:51 PM CDT	River Flood Advisory	LOT	Will	33 hr
Jul 3, 6:51 AM CDT	River Flood Advisory	LOT	LaSalle	59 hr
Jul 18, 4:19 PM CDT	River Flood Advisory	LOT	Will	17 hr
Jul 21, 9:33 AM CDT	River Flood Advisory	LOT	Cook	8 hr
Jul 21, 9:33 AM CDT	River Flood Advisory	LOT	Cook	11 hr
Sep 12, 10:14 AM CDT	River Flood Advisory	LOT	Winnebago	36 hr
Sep 13, 3:45 AM CDT	River Flood Advisory	LOT	Boone	24 hr
Sep 13, 5:41 AM CDT	River Flood Advisory	LOT	Ogle	49 hr
Sep 13, 8:13 AM CDT	River Flood Advisory	LOT	Winnebago	51 hr
Sep 13, 8:13 AM CDT	River Flood Advisory	LOT	Lee	4 days
Sep 13, 10:15 AM CDT	River Flood Advisory	LOT	Cook	6 days
Sep 13, 10:15 AM CDT	River Flood Advisory	LOT	Cook	72 hr
Sep 13, 10:15 AM CDT	River Flood Advisory	LOT	LaSalle	57 hr
Sep 14, 9:00 PM CDT	River Flood Advisory	LOT	Winnebago	33 hr
Sep 15, 9:27 AM CDT	River Flood Advisory	LOT	LaSalle	25 hr
Sep 17, 8:03 PM CDT	River Flood Advisory	LOT	Winnebago	7 days
Sep 21, 8:48 PM CDT	River Flood Advisory	LOT	Cook	4 days
Sep 21, 8:48 PM CDT	River Flood Advisory	LOT	Cook	52 hr
Sep 21, 8:48 PM CDT	River Flood Advisory	LOT	Will	70 hr
Sep 21, 9:22 PM CDT	River Flood Advisory	LOT	Boone	37 hr
Sep 21, 9:22 PM CDT	River Flood Advisory	LOT	Winnebago	24 hr
Sep 21, 9:22 PM CDT	River Flood Advisory	LOT	Ogle	4 days
Sep 21, 9:22 PM CDT	River Flood Advisory	LOT	Lee	3 days
Sep 22, 11:00 AM CDT	River Flood Advisory	LOT	LaSalle	56 hr
Sep 22, 11:00 AM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	68 hr
Sep 23, 8:02 PM CDT	River Flood Advisory	LOT	LaSalle	29 hr
Sep 27, 9:45 AM CDT	River Flood Advisory	LOT	Ogle	12 hr
Sep 27, 9:13 PM CDT	River Flood Advisory	LOT	Will	61 hr
Sep 27, 9:13 PM CDT	River Flood Advisory	LOT	Will	13 hr
Sep 27, 9:39 PM CDT	River Flood Advisory	LOT	Kane, McHenry	18 hr
Sep 27, 9:39 PM CDT	River Flood Advisory	LOT	Grundy	33 hr
Sep 27, 10:05 PM CDT	River Flood Advisory	LOT	Cook	48 hr
Sep 28, 9:34 AM CDT	River Flood Advisory	LOT	Grundy, Kankakee, Will	22 hr
Sep 29, 10:23 AM CDT	River Flood Advisory	LOT	Winnebago	6 days
Sep 29, 10:23 AM CDT	River Flood Advisory	LOT	Ogle	7 days
Sep 29, 11:04 AM CDT	River Flood Advisory	LOT	Cook	62 hr
Sep 29, 11:04 AM CDT	River Flood Advisory	LOT	DuPage	20 hr
Sep 29, 8:06 PM CDT	River Flood Advisory	LOT	Kane, McHenry	14 hr
Sep 30, 10:57 AM CDT	River Flood Advisory	LOT	Winnebago	21 days
Sep 30, 9:00 PM CDT	River Flood Advisory	LOT	Lee	21 days
Oct 1, 7:51 PM CDT	River Flood Advisory	LOT	Ogle	12 hr
Oct 2, 11:30 AM CDT	River Flood Advisory	LOT	Boone	3 days
Oct 3, 5:56 AM CDT	River Flood Advisory	LOT	Will	39 hr
Oct 3, 5:58 AM CDT	River Flood Advisory	LOT	Cook	6 days
Oct 3, 10:03 AM CDT	River Flood Advisory	LOT	Lake	6 days
Oct 3, 10:03 AM CDT	River Flood Advisory	LOT	Cook	57 hr
Oct 3, 10:03 AM CDT	River Flood Advisory	LOT	Cook	45 hr
Oct 3, 10:10 AM CDT	River Flood Advisory	LOT	Will	40 hr
Oct 3, 2:10 PM CDT	River Flood Advisory	LOT	Winnebago	16 hr
Oct 4, 7:16 AM CDT	River Flood Advisory	LOT	DuPage	18 hr
Oct 6, 2:53 AM CDT	River Flood Advisory	LOT	Winnebago	5 days
Oct 11, 11:15 AM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	36 hr
Oct 11, 2:11 PM CDT	River Flood Advisory	LOT	Lake	5 days
Oct 11, 2:11 PM CDT	River Flood Advisory	LOT	Cook	5 days
Oct 11, 2:11 PM CDT	River Flood Advisory	LOT	Will	8 hr
Oct 15, 11:43 AM CDT	River Flood Advisory	PAH	Alexander, Jackson, Union	49 min
Oct 15, 11:43 AM CDT	River Flood Advisory	PAH	Alexander	49 min
Oct 26, 11:01 AM CDT	River Flood Advisory	LOT	Will	12 hr
Oct 26, 11:07 AM CDT	River Flood Advisory	LOT	Kane, Kendall	11 hr
Oct 26, 11:10 AM CDT	River Flood Advisory	LOT	LaSalle	21 hr
Oct 26, 11:12 AM CDT	River Flood Advisory	LOT	Ogle	11 days
Oct 26, 11:16 AM CDT	River Flood Advisory	LOT	LaSalle	23 hr
Oct 26, 11:18 AM CDT	River Flood Advisory	LOT	Bureau, LaSalle, Putnam	11 hr
Oct 26, 9:57 PM CDT	River Flood Advisory	LOT	Winnebago	6 days
Oct 26, 9:57 PM CDT	River Flood Advisory	LOT	Lee	5 days
Oct 26, 9:57 PM CDT	River Flood Advisory	LOT	Grundy	37 hr
Oct 26, 9:57 PM CDT	River Flood Advisory	LOT	Cook	13 hr
Oct 26, 9:57 PM CDT	River Flood Advisory	LOT	Winnebago	10 days
Oct 26, 10:30 PM CDT	River Flood Advisory	LOT	Grundy	12 hr
Oct 27, 8:40 AM CDT	River Flood Advisory	LOT	Cook	50 hr
Oct 27, 8:41 AM CDT	River Flood Advisory	LOT	Will	50 hr
Oct 27, 9:47 AM CDT	River Flood Advisory	LOT	Boone	49 hr
Oct 27, 10:44 AM CDT	River Flood Advisory	LOT	Lake	4 days
Oct 27, 10:46 AM CDT	River Flood Advisory	LOT	Lake	5 days
Oct 28, 10:36 AM CDT	River Flood Advisory	LOT	Kane, McHenry	10 hr
Oct 30, 10:20 AM CDT	River Flood Advisory	LOT	Lake	4 days
Oct 30, 8:42 PM CDT	River Flood Advisory	LOT	Winnebago	7 days
Oct 30, 9:05 PM CDT	River Flood Advisory	LOT	LaSalle	4 days
Oct 30, 9:05 PM CDT	River Flood Advisory	LOT	Will	58 hr
Oct 30, 9:24 PM CDT	River Flood Advisory	LOT	Cook	4 days
Oct 30, 10:11 PM CDT	River Flood Advisory	LOT	Grundy	60 hr
Oct 31, 10:51 AM CDT	River Flood Advisory	LOT	Grundy	10 hr
Nov 21, 8:22 AM CST	River Flood Advisory	LOT	Kane, Kendall	24 hr
Nov 21, 9:10 AM CST	River Flood Advisory	LOT	Winnebago	15 days
Nov 21, 9:10 AM CST	River Flood Advisory	LOT	Winnebago	21 days
Nov 21, 9:10 AM CST	River Flood Advisory	LOT	Ogle	5 days
Nov 26, 8:01 PM CST	River Flood Advisory	LOT	Kane, Kendall	25 hr
Nov 27, 10:11 AM CST	River Flood Advisory	LOT	Winnebago	5 days
Nov 30, 10:20 AM CST	River Flood Advisory	LOT	Kane, Kendall	71 hr
Dec 29, 11:01 AM CST	River Flood Advisory	LOT	DuPage, Will	24 hr
Dec 29, 11:01 AM CST	River Flood Advisory	LOT	Kane, Kendall	32 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 2018 2020

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.