Weather alerts in Cook County, Illinois, 2024

202 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cook County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts: 202
Warnings: 60
Watches: 28
Advisories: 56
Busiest month: July41 alerts
Busiest day: July 15, 202416 alerts

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	Lasted
Jan 8, 3:00 AM CST	Winter Weather Advisory	LOT	47 hr
Jan 10, 2:18 PM CST	Winter Storm Watch	LOT	24 hr
Jan 11, 2:22 PM CST	Winter Storm Warning	LOT	37 hr
Jan 11, 2:22 PM CST	Winter Weather Advisory	LOT	46 hr
Jan 12, 4:23 AM CST	Mesoscale Discussion	SPC	4 hr
Jan 12, 9:31 AM CST	Winter Weather Advisory	LOT	26 hr
Jan 13, 3:29 AM CST	Wind Chill Advisory	LOT	4 days
Jan 13, 2:17 PM CST	Wind Chill Warning	LOT	70 hr
Jan 13, 2:17 PM CST	Winter Weather Advisory	LOT	20 hr
Jan 14, 3:32 AM CST	Wind Chill Advisory	LOT	3 days
Jan 16, 1:05 PM CST	River Flood Watch	LOT	71 hr
Jan 18, 3:41 AM CST	Winter Weather Advisory	LOT	26 hr
Jan 21, 2:42 PM CST	Winter Weather Advisory	LOT	42 hr
Jan 22, 3:21 AM CST	Winter Weather Advisory	LOT	33 hr
Jan 22, 9:17 AM CST	Mesoscale Discussion	SPC	4 hr
Jan 23, 1:57 PM CST	Dense Fog Advisory	LOT	22 hr
Jan 23, 2:04 PM CST	Flood Watch	LOT	4 days
Jan 24, 2:57 PM CST	Dense Fog Advisory	LOT	30 hr
Jan 26, 7:31 AM CST	River Flood Warning	LOT	12 hr
Jan 26, 8:39 AM CST	Dense Fog Advisory	LOT	5 hr
Jan 26, 1:22 PM CST	Dense Fog Advisory	LOT	33 hr
Feb 4, 10:23 PM CST	Dense Fog Advisory	LOT	8 hr
Feb 27, 2:35 PM CST	Wind Advisory	LOT	15 hr
Feb 27, 2:50 PM CST	Mesoscale Discussion	SPC	115 min
Feb 27, 3:53 PM CST	Tornado Watch	SPC	6 hr
Feb 27, 5:59 PM CST	Mesoscale Discussion	SPC	91 min
Feb 27, 7:07 PM CST	Severe Thunderstorm Warning Considerable damage threat	LOT	68 min
Feb 27, 7:17 PM CST	Tornado Warning	LOT	28 min
Feb 27, 7:19 PM CST	Tornado Warning	LOT	26 min
Feb 27, 7:32 PM CST	Tornado Warning	LOT	38 min
Feb 27, 8:14 PM CST	Severe Thunderstorm Warning	LOT	46 min
Feb 27, 9:02 PM CST	Tornado Warning	LOT	28 min
Mar 4, 1:25 PM CST	Mesoscale Discussion	SPC	2 hr
Mar 4, 9:26 PM CST	Special Weather Statement	LOT	34 min
Mar 5, 12:01 AM CST	Areal Flood Advisory	LOT	6 hr
Mar 14, 7:09 AM CDT	Areal Flood Advisory	LOT	4 hr
Mar 26, 11:07 AM CDT	Special Weather Statement	LOT	38 min
Apr 1, 5:12 AM CDT	Areal Flood Advisory	LOT	7 hr
Apr 1, 7:56 AM CDT	River Flood Warning	LOT	23 hr
Apr 1, 8:20 AM CDT	River Flood Warning	LOT	26 hr
Apr 2, 9:32 AM CDT	River Flood Watch	LOT	27 hr
Apr 20, 8:47 PM CDT	Frost Advisory	LOT	11 hr
Apr 23, 2:52 PM CDT	Mesoscale Discussion	SPC	113 min
Apr 24, 2:41 AM CDT	Freeze Watch	LOT	12 hr
Apr 24, 2:58 PM CDT	Frost Advisory	LOT	17 hr
Apr 24, 2:58 PM CDT	Freeze Warning	LOT	17 hr
Apr 26, 4:15 PM CDT	Special Weather Statement	LOT	45 min
Apr 29, 5:54 AM CDT	Areal Flood Advisory	LOT	2 hr
May 2, 2:49 PM CDT	Severe Thunderstorm Warning	LOT	26 min
May 2, 3:07 PM CDT	Mesoscale Discussion	SPC	113 min
May 2, 9:57 PM CDT	Special Weather Statement	LOT	33 min
May 2, 10:04 PM CDT	Severe Thunderstorm Warning	LOT	29 min
May 4, 6:49 PM CDT	Severe Thunderstorm Warning	LOT	45 min
May 7, 12:14 PM CDT	Mesoscale Discussion	SPC	2 hr
May 7, 1:28 PM CDT	Tornado Watch	SPC	12 hr
May 7, 2:09 PM CDT	Severe Thunderstorm Warning	LOT	36 min
May 7, 2:28 PM CDT	Areal Flood Advisory	LOT	3 hr
May 7, 8:48 PM CDT	Special Weather Statement	LOT	27 min
May 13, 2:47 PM CDT	Areal Flood Advisory	LOT	2 hr
May 17, 2:42 AM CDT	Dense Fog Advisory	LOT	6 hr
May 20, 10:13 AM CDT	Mesoscale Discussion	SPC	92 min
May 20, 2:04 PM CDT	Severe Thunderstorm Warning	LOT	41 min
May 20, 2:39 PM CDT	Severe Thunderstorm Warning	LOT	36 min
May 20, 3:21 PM CDT	Mesoscale Discussion	SPC	114 min
May 21, 10:20 PM CDT	Wind Advisory	LOT	6 hr
May 24, 6:07 AM CDT	Severe Thunderstorm Watch	SPC	9 hr
May 24, 12:06 PM CDT	Severe Thunderstorm Warning	LOT	54 min
May 24, 12:53 PM CDT	Severe Thunderstorm Warning	LOT	67 min
May 24, 4:46 PM CDT	Mesoscale Discussion	SPC	119 min
May 28, 2:55 PM CDT	Special Weather Statement	LOT	20 min
May 28, 3:03 PM CDT	Beach Hazards Statement	LOT	36 hr
May 28, 3:15 PM CDT	Special Weather Statement	LOT	30 min
May 28, 5:01 PM CDT	Areal Flood Advisory	LOT	3 hr
Jun 4, 7:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	30 min
Jun 4, 7:33 PM CDT	Severe Thunderstorm Warning	LOT	27 min
Jun 4, 7:53 PM CDT	Special Weather Statement	LOT	22 min
Jun 4, 8:11 PM CDT	Special Weather Statement	LOT	19 min
Jun 4, 11:42 PM CDT	Severe Thunderstorm Warning	LOT	33 min
Jun 5, 1:02 AM CDT	Areal Flood Advisory	LOT	4 hr
Jun 5, 9:36 AM CDT	River Flood Watch	LOT	5 hr
Jun 9, 3:17 AM CDT	Beach Hazards Statement	LOT	46 hr
Jun 13, 1:02 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 13, 1:50 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 13, 4:46 PM CDT	Mesoscale Discussion	SPC	89 min
Jun 16, 2:15 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 16, 3:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 16, 5:04 PM CDT	Severe Thunderstorm Warning	LOT	41 min
Jun 22, 7:36 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 22, 7:37 PM CDT	Flood Watch	LOT	5 hr
Jun 22, 10:33 PM CDT	Areal Flood Advisory	LOT	3 hr
Jun 22, 10:43 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 11:11 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	49 min
Jun 22, 11:20 PM CDT	Flash Flood Warning	LOT	4 hr
Jun 23, 12:06 AM CDT	Areal Flood Advisory	LOT	3 hr
Jun 24, 7:31 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 25, 5:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 25, 6:28 AM CDT	Mesoscale Discussion	SPC	92 min
Jun 25, 6:38 AM CDT	Severe Thunderstorm Warning	LOT	52 min
Jun 25, 7:00 AM CDT	Special Weather Statement	LOT	30 min
Jun 25, 7:17 AM CDT	Severe Thunderstorm Warning	LOT	26 min
Jun 25, 7:46 AM CDT	Areal Flood Advisory	LOT	119 min
Jun 26, 3:47 AM CDT	Beach Hazards Statement	LOT	36 hr
Jun 29, 3:58 AM CDT	Beach Hazards Statement	LOT	51 hr
Jul 9, 2:20 AM CDT	Flood Watch	LOT	30 hr
Jul 9, 2:40 PM CDT	River Flood Watch	LOT	4 days
Jul 9, 3:02 PM CDT	Beach Hazards Statement	LOT	25 hr
Jul 9, 3:37 PM CDT	Flash Flood Warning	LOT	3 hr
Jul 9, 10:24 PM CDT	River Flood Watch	LOT	27 hr
Jul 13, 5:08 PM CDT	Special Weather Statement	LOT	37 min
Jul 13, 11:41 PM CDT	Areal Flood Advisory	LOT	3 hr
Jul 14, 12:31 AM CDT	Areal Flood Advisory	LOT	3 hr
Jul 14, 2:19 AM CDT	Flood Watch	LOT	9 hr
Jul 14, 2:45 AM CDT	Areal Flood Advisory	LOT	75 min
Jul 14, 3:03 PM CDT	Flood Watch	LOT	11 hr
Jul 14, 3:15 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 14, 5:55 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 14, 9:36 PM CDT	Mesoscale Discussion	SPC	54 min
Jul 14, 10:03 PM CDT	Severe Thunderstorm Warning	LOT	57 min
Jul 14, 10:06 PM CDT	Severe Thunderstorm Warning	LOT	54 min
Jul 14, 10:17 PM CDT	Areal Flood Advisory	LOT	3 hr
Jul 14, 10:24 PM CDT	Areal Flood Advisory	LOT	3 hr
Jul 14, 10:30 PM CDT	Flash Flood Warning	LOT	3 hr
Jul 14, 10:38 PM CDT	Tornado Warning	LOT	9 min
Jul 14, 11:00 PM CDT	Severe Thunderstorm Warning	LOT	60 min
Jul 15, 1:23 AM CDT	Areal Flood Advisory	LOT	4 hr
Jul 15, 12:52 PM CDT	Flood Watch	LOT	14 hr
Jul 15, 1:03 PM CDT	River Flood Watch	LOT	17 hr
Jul 15, 1:03 PM CDT	River Flood Watch	LOT	17 hr
Jul 15, 1:03 PM CDT	River Flood Watch	LOT	36 hr
Jul 15, 1:59 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 15, 6:06 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 15, 6:53 PM CDT	Tornado Watch	SPC	6 hr
Jul 15, 8:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 15, 8:52 PM CDT	Severe Thunderstorm Warning	LOT	83 min
Jul 15, 9:01 PM CDT	Severe Thunderstorm Warning	LOT	74 min
Jul 15, 9:13 PM CDT	Tornado Warning	LOT	47 min
Jul 15, 9:16 PM CDT	Tornado Warning	LOT	44 min
Jul 15, 9:27 PM CDT	Tornado Warning	LOT	33 min
Jul 15, 9:29 PM CDT	Flash Flood Warning	LOT	3 hr
Jul 16, 12:15 AM CDT	Areal Flood Advisory	LOT	4 hr
Jul 16, 5:35 AM CDT	River Flood Warning	LOT	64 hr
Jul 16, 5:39 AM CDT	River Flood Warning	LOT	64 hr
Jul 17, 2:19 PM CDT	Beach Hazards Statement	LOT	29 hr
Jul 23, 7:00 PM CDT	Special Weather Statement	LOT	45 min
Aug 5, 6:49 AM CDT	Special Weather Statement	LOT	26 min
Aug 5, 8:01 AM CDT	Severe Thunderstorm Warning	LOT	29 min
Aug 5, 8:04 AM CDT	Severe Thunderstorm Warning	LOT	26 min
Aug 5, 2:59 PM CDT	Beach Hazards Statement	LOT	54 hr
Aug 5, 5:09 PM CDT	Mesoscale Discussion	SPC	66 min
Aug 5, 5:33 PM CDT	Areal Flood Advisory	LOT	117 min
Aug 5, 5:46 PM CDT	Areal Flood Advisory	LOT	3 hr
Aug 6, 3:36 AM CDT	Severe Thunderstorm Warning	LOT	39 min
Aug 6, 4:02 AM CDT	Severe Thunderstorm Warning	LOT	43 min
Aug 15, 3:44 AM CDT	Beach Hazards Statement	LOT	18 hr
Aug 16, 1:12 AM CDT	Special Weather Statement	LOT	63 min
Aug 16, 2:06 AM CDT	Areal Flood Advisory	LOT	3 hr
Aug 16, 4:37 PM CDT	Special Weather Statement	LOT	23 min
Aug 16, 5:31 PM CDT	Mesoscale Discussion	SPC	119 min
Aug 16, 7:01 PM CDT	Severe Thunderstorm Warning	LOT	44 min
Aug 16, 7:40 PM CDT	Severe Thunderstorm Warning	LOT	35 min
Aug 16, 8:15 PM CDT	Severe Thunderstorm Warning	LOT	45 min
Aug 17, 3:42 AM CDT	Beach Hazards Statement	LOT	4 days
Aug 24, 2:32 PM CDT	Excessive Heat Watch	LOT	48 hr
Aug 25, 2:13 PM CDT	Excessive Heat Warning	LOT	54 hr
Aug 27, 11:25 AM CDT	Mesoscale Discussion	SPC	3 hr
Aug 27, 4:47 PM CDT	Mesoscale Discussion	SPC	88 min
Aug 27, 4:54 PM CDT	Beach Hazards Statement	LOT	11 hr
Aug 27, 4:54 PM CDT	Lakeshore Flood Advisory	LOT	11 hr
Aug 27, 5:09 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 27, 5:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	81 min
Aug 27, 6:24 PM CDT	Mesoscale Discussion	SPC	96 min
Aug 27, 7:16 PM CDT	Special Weather Statement	LOT	29 min
Aug 27, 7:31 PM CDT	Severe Thunderstorm Warning	LOT	29 min
Aug 27, 7:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	34 min
Aug 27, 7:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	31 min
Aug 27, 8:09 PM CDT	Areal Flood Advisory	LOT	3 hr
Aug 27, 8:18 PM CDT	Severe Thunderstorm Warning	LOT	42 min
Aug 30, 3:07 PM CDT	Beach Hazards Statement	LOT	68 hr
Sep 5, 9:50 AM CDT	Beach Hazards Statement	LOT	66 hr
Sep 21, 9:34 PM CDT	Beach Hazards Statement	LOT	47 hr
Sep 24, 11:37 AM CDT	Areal Flood Advisory	LOT	113 min
Sep 24, 12:16 PM CDT	Areal Flood Advisory	LOT	3 hr
Sep 24, 12:22 PM CDT	Tornado Warning	LOT	23 min
Sep 24, 12:45 PM CDT	Flash Flood Warning	LOT	3 hr
Sep 24, 12:47 PM CDT	Special Weather Statement	LOT	28 min
Sep 26, 2:47 PM CDT	Wind Advisory	LOT	33 hr
Sep 26, 3:12 PM CDT	Beach Hazards Statement	LOT	4 days
Oct 15, 3:29 AM CDT	Frost Advisory	LOT	30 hr
Oct 16, 1:54 PM CDT	Frost Advisory	LOT	19 hr
Oct 29, 2:43 AM CDT	Red Flag Warning	LOT	18 hr
Oct 30, 3:06 PM CDT	Wind Advisory	LOT	31 hr
Nov 4, 1:57 PM CST	Wind Advisory	LOT	22 hr
Nov 17, 10:55 PM CST	Dense Fog Advisory	LOT	7 hr
Nov 21, 3:58 AM CST	Winter Weather Advisory	LOT	11 hr
Nov 21, 3:59 AM CST	Wind Advisory	LOT	10 hr
Nov 21, 9:26 AM CST	Mesoscale Discussion	SPC	3 hr
Dec 4, 2:19 AM CST	Wind Advisory	LOT	22 hr
Dec 4, 9:49 PM CST	Snow Squall Warning	LOT	26 min
Dec 4, 10:19 PM CST	Snow Squall Warning	LOT	56 min
Dec 15, 2:48 AM CST	Dense Fog Advisory	LOT	9 hr
Dec 15, 3:12 PM CST	Dense Fog Advisory	LOT	20 hr
Dec 26, 5:14 AM CST	Dense Fog Advisory	LOT	16 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	34
Tornado Warning	9
Severe Thunderstorm Watch	8
Tornado Watch	3
Mesoscale Discussion	27
Special Weather Statement	17
Flooding
Flash Flood Warning	5
River Flood Warning	5
Flood Watch	6
River Flood Watch	8
Areal Flood Advisory	24
Winter
Snow Squall Warning	2
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	8
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Cold
Freeze Warning	1
Wind Chill Warning	1
Freeze Watch	1
Frost Advisory	4
Wind Chill Advisory	2
Wind and dust
Wind Advisory	7
Fire
Red Flag Warning	1
Fog and smoke
Dense Fog Advisory	10
Coast and beach
Lakeshore Flood Advisory	1
Beach Hazards Statement	14

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2023 2025

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. Rebuilt daily.