Weather alerts in Cook County, Illinois, 2025

182 weather alerts in 2025, 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 2025. Tap one for its archive.

Alerts: 182
Warnings: 51
Watches: 24
Advisories: 73
Busiest month: August52 alerts
Busiest day: August 17, 202514 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 4, 1:39 PM CST	Winter Weather Advisory	LOT	50 hr
Jan 18, 1:21 PM CST	Cold Weather Advisory	LOT	46 hr
Jan 19, 12:58 PM CST	Cold Weather Advisory	LOT	59 hr
Jan 26, 12:37 PM CST	Wind Advisory	LOT	29 hr
Jan 27, 3:26 AM CST	Fire Weather Watch	LOT	7 hr
Jan 28, 12:54 AM CST	Wind Advisory	LOT	17 hr
Jan 30, 8:28 PM CST	Dense Fog Advisory	LOT	13 hr
Jan 31, 1:07 AM CST	Flood Watch	LOT	14 hr
Jan 31, 9:27 AM CST	Areal Flood Advisory	LOT	4 hr
Jan 31, 12:56 PM CST	Areal Flood Warning	LOT	5 hr
Feb 4, 2:21 PM CST	Winter Weather Advisory	LOT	40 hr
Feb 8, 2:00 AM CST	Winter Weather Advisory	LOT	16 hr
Feb 10, 1:15 PM CST	Winter Storm Watch	LOT	22 hr
Feb 11, 11:41 AM CST	Winter Weather Advisory	LOT	39 hr
Feb 16, 2:21 AM CST	Cold Weather Advisory	LOT	33 hr
Feb 17, 2:27 AM CST	Cold Weather Advisory	LOT	34 hr
Feb 27, 12:35 AM CST	Dense Fog Advisory	LOT	6 hr
Feb 27, 1:55 PM CST	Wind Advisory	LOT	31 hr
Mar 4, 3:06 PM CST	Wind Advisory	LOT	33 hr
Mar 4, 8:41 PM CST	River Flood Warning	LOT	14 hr
Mar 5, 2:53 AM CST	Areal Flood Advisory	LOT	8 hr
Mar 5, 11:07 AM CST	Areal Flood Advisory	LOT	6 hr
Mar 13, 3:40 AM CDT	High Wind Watch	LOT	35 hr
Mar 13, 3:40 AM CDT	Wind Advisory	LOT	51 hr
Mar 13, 10:36 AM CDT	Fire Weather Watch	LOT	24 hr
Mar 14, 4:11 AM CDT	Red Flag Warning	LOT	20 hr
Mar 14, 2:26 PM CDT	High Wind Warning	LOT	18 hr
Mar 14, 2:26 PM CDT	Wind Advisory	LOT	26 hr
Mar 14, 6:55 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 14, 11:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	79 min
Mar 19, 2:57 AM CDT	Wind Advisory	LOT	28 hr
Mar 19, 5:01 PM CDT	Severe Thunderstorm Warning	LOT	44 min
Mar 19, 5:29 PM CDT	Tornado Warning	LOT	31 min
Mar 20, 12:03 AM CDT	Winter Weather Advisory	LOT	7 hr
Mar 23, 3:15 AM CDT	Wind Advisory	LOT	21 hr
Mar 30, 12:43 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 30, 1:13 PM CDT	Tornado Watch	SPC	5 hr
Mar 30, 1:47 PM CDT	Severe Thunderstorm Warning	LOT	43 min
Mar 30, 2:17 PM CDT	Severe Thunderstorm Warning	LOT	43 min
Apr 2, 11:44 AM CDT	Areal Flood Advisory	LOT	3 hr
Apr 18, 2:53 PM CDT	Mesoscale Discussion	SPC	3 hr
May 13, 7:23 PM CDT	Dense Fog Advisory	LOT	15 hr
May 14, 9:17 PM CDT	Dense Fog Advisory	LOT	13 hr
May 15, 10:12 AM CDT	Fire Weather Watch	LOT	23 hr
May 15, 5:15 PM CDT	Tornado Watch	SPC	4 hr
May 15, 6:15 PM CDT	Severe Thunderstorm Warning	LOT	45 min
May 15, 7:29 PM CDT	Severe Thunderstorm Warning	LOT	46 min
May 15, 7:48 PM CDT	Severe Thunderstorm Warning	LOT	57 min
May 15, 8:01 PM CDT	Severe Thunderstorm Warning Destructive damage threat	LOT	29 min
May 16, 10:56 AM CDT	Wind Advisory	LOT	10 hr
May 16, 6:00 PM CDT	Dust Storm Warning	LOT	75 min
May 16, 6:23 PM CDT	Dust Storm Warning	LOT	79 min
May 21, 3:09 AM CDT	Beach Hazards Statement	LOT	46 hr
Jun 3, 2:02 PM CDT	Beach Hazards Statement	LOT	5 hr
Jun 8, 3:31 PM CDT	Severe Thunderstorm Warning	LOT	44 min
Jun 8, 4:14 PM CDT	Special Weather Statement	LOT	16 min
Jun 18, 10:28 AM CDT	Flood Watch	LOT	11 hr
Jun 18, 5:07 PM CDT	Areal Flood Advisory	LOT	3 hr
Jun 18, 6:22 PM CDT	Areal Flood Advisory	LOT	3 hr
Jun 18, 6:50 PM CDT	Flash Flood Warning	LOT	100 min
Jun 18, 7:07 PM CDT	Areal Flood Advisory	LOT	113 min
Jun 19, 1:22 PM CDT	Extreme Heat Watch	LOT	14 hr
Jun 20, 3:50 AM CDT	Extreme Heat Warning	LOT	4 days
Jun 24, 12:36 PM CDT	Mesoscale Discussion	SPC	114 min
Jun 29, 12:46 PM CDT	Special Weather Statement	LOT	29 min
Jun 29, 1:19 PM CDT	Special Weather Statement	LOT	41 min
Jun 29, 8:03 PM CDT	Severe Thunderstorm Warning	LOT	42 min
Jun 29, 8:22 PM CDT	Areal Flood Advisory	LOT	113 min
Jul 5, 8:55 PM CDT	Beach Hazards Statement	LOT	48 hr
Jul 6, 5:00 PM CDT	Areal Flood Advisory	LOT	3 hr
Jul 8, 3:57 PM CDT	Areal Flood Advisory	LOT	88 min
Jul 8, 9:30 PM CDT	Areal Flood Advisory	LOT	2 hr
Jul 8, 9:45 PM CDT	Flash Flood Warning	LOT	3 hr
Jul 8, 10:22 PM CDT	Areal Flood Advisory	LOT	83 min
Jul 8, 11:43 PM CDT	Areal Flood Advisory	LOT	3 hr
Jul 9, 12:45 AM CDT	Areal Flood Advisory	LOT	4 hr
Jul 9, 2:55 AM CDT	Beach Hazards Statement	LOT	31 hr
Jul 10, 5:33 PM CDT	Flood Watch	LOT	7 hr
Jul 10, 11:59 PM CDT	Special Weather Statement	LOT	31 min
Jul 11, 4:51 PM CDT	Tornado Watch	SPC	5 hr
Jul 16, 12:37 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 16, 2:49 PM CDT	Severe Thunderstorm Warning	LOT	56 min
Jul 16, 3:20 PM CDT	Severe Thunderstorm Warning	LOT	55 min
Jul 16, 3:41 PM CDT	Beach Hazards Statement	LOT	36 hr
Jul 19, 12:08 PM CDT	Areal Flood Advisory	LOT	70 min
Jul 19, 4:23 PM CDT	Beach Hazards Statement	LOT	41 hr
Jul 21, 3:48 AM CDT	Extreme Heat Watch	LOT	34 hr
Jul 22, 3:21 AM CDT	Heat Advisory	LOT	64 hr
Jul 24, 2:10 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 24, 2:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	38 min
Jul 24, 2:31 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 24, 2:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	47 min
Jul 24, 3:02 PM CDT	Areal Flood Advisory	LOT	2 hr
Jul 24, 4:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jul 25, 11:31 AM CDT	Areal Flood Advisory	LOT	3 hr
Jul 25, 11:43 AM CDT	Flash Flood Warning	LOT	3 hr
Jul 25, 11:49 AM CDT	Flood Watch	LOT	27 hr
Jul 25, 1:50 PM CDT	Areal Flood Advisory	LOT	115 min
Jul 25, 2:32 PM CDT	Areal Flood Warning	LOT	3 hr
Jul 27, 1:27 PM CDT	Heat Advisory	LOT	31 hr
Jul 27, 4:23 PM CDT	Areal Flood Advisory	LOT	4 hr
Jul 27, 5:09 PM CDT	Areal Flood Advisory	LOT	111 min
Jul 28, 12:40 PM CDT	Special Weather Statement	LOT	35 min
Jul 28, 12:46 PM CDT	Severe Thunderstorm Warning	LOT	44 min
Jul 28, 1:08 PM CDT	Severe Thunderstorm Warning	LOT	23 min
Jul 29, 3:28 PM CDT	Beach Hazards Statement	LOT	3 days
Jul 30, 3:18 AM CDT	Flood Watch	LOT	25 hr
Aug 9, 2:54 PM CDT	Mesoscale Discussion	SPC	96 min
Aug 11, 9:43 PM CDT	Areal Flood Advisory	LOT	3 hr
Aug 11, 10:08 PM CDT	Special Weather Statement	LOT	22 min
Aug 11, 11:51 PM CDT	Areal Flood Advisory	LOT	114 min
Aug 12, 11:33 AM CDT	Flood Watch	LOT	8 hr
Aug 12, 2:33 PM CDT	Areal Flood Advisory	LOT	3 hr
Aug 12, 3:05 PM CDT	Flash Flood Warning	LOT	3 hr
Aug 12, 3:35 PM CDT	Special Weather Statement	LOT	25 min
Aug 12, 3:36 PM CDT	Severe Thunderstorm Warning	LOT	24 min
Aug 12, 3:39 PM CDT	Areal Flood Advisory	LOT	4 hr
Aug 12, 5:04 PM CDT	Flash Flood Warning	LOT	3 hr
Aug 12, 5:45 PM CDT	Areal Flood Advisory	LOT	2 hr
Aug 12, 7:53 PM CDT	Areal Flood Advisory	LOT	52 min
Aug 16, 11:56 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 16, 1:56 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 16, 2:34 PM CDT	Mesoscale Discussion	SPC	86 min
Aug 16, 3:48 PM CDT	Severe Thunderstorm Warning	LOT	57 min
Aug 16, 4:10 PM CDT	Severe Thunderstorm Warning	LOT	50 min
Aug 16, 4:44 PM CDT	Mesoscale Discussion	SPC	61 min
Aug 16, 5:00 PM CDT	Severe Thunderstorm Warning	LOT	45 min
Aug 16, 5:34 PM CDT	Areal Flood Advisory	LOT	3 hr
Aug 16, 5:38 PM CDT	Severe Thunderstorm Warning	LOT	52 min
Aug 16, 7:18 PM CDT	Special Weather Statement	LOT	27 min
Aug 17, 12:54 AM CDT	Areal Flood Advisory	LOT	3 hr
Aug 17, 1:21 AM CDT	Areal Flood Advisory	LOT	3 hr
Aug 17, 1:41 AM CDT	Areal Flood Advisory	LOT	2 hr
Aug 17, 2:11 AM CDT	Special Weather Statement	LOT	34 min
Aug 17, 2:27 AM CDT	Severe Thunderstorm Warning	LOT	48 min
Aug 17, 2:32 AM CDT	Flash Flood Warning	LOT	118 min
Aug 17, 2:48 AM CDT	Severe Thunderstorm Warning	LOT	27 min
Aug 17, 2:59 AM CDT	Severe Thunderstorm Warning	LOT	46 min
Aug 17, 3:14 AM CDT	Areal Flood Advisory	LOT	3 hr
Aug 17, 3:36 AM CDT	Flash Flood Warning	LOT	114 min
Aug 17, 4:30 AM CDT	Areal Flood Advisory	LOT	3 hr
Aug 17, 5:16 AM CDT	Beach Hazards Statement	LOT	34 hr
Aug 17, 5:32 AM CDT	Areal Flood Advisory	LOT	6 hr
Aug 18, 11:10 AM CDT	Mesoscale Discussion	SPC	95 min
Aug 18, 12:13 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 18, 2:21 PM CDT	Flood Watch	LOT	13 hr
Aug 18, 3:38 PM CDT	Mesoscale Discussion	SPC	97 min
Aug 18, 4:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	81 min
Aug 18, 5:37 PM CDT	Areal Flood Advisory	LOT	4 hr
Aug 18, 6:30 PM CDT	Areal Flood Advisory	LOT	3 hr
Aug 18, 7:02 PM CDT	Flash Flood Warning	LOT	70 min
Aug 18, 8:12 PM CDT	Flash Flood Warning	LOT	2 hr
Aug 18, 8:26 PM CDT	Flash Flood Warning Considerable damage threat	LOT	3 hr
Aug 18, 9:20 PM CDT	Areal Flood Advisory	LOT	13 hr
Aug 18, 11:33 PM CDT	Areal Flood Warning	LOT	13 hr
Aug 19, 12:03 AM CDT	Flash Flood Warning	LOT	87 min
Aug 19, 4:18 AM CDT	Beach Hazards Statement	LOT	57 hr
Aug 19, 10:53 AM CDT	Areal Flood Advisory	LOT	6 hr
Aug 27, 2:44 PM CDT	Beach Hazards Statement	LOT	47 hr
Sep 21, 3:26 PM CDT	Severe Thunderstorm Warning	LOT	34 min
Sep 21, 3:26 PM CDT	Severe Thunderstorm Warning	LOT	34 min
Sep 23, 4:56 PM CDT	Beach Hazards Statement	LOT	44 hr
Oct 23, 3:07 AM CDT	Frost Advisory	LOT	29 hr
Oct 23, 3:07 AM CDT	Freeze Warning	LOT	29 hr
Nov 8, 2:27 AM CST	Winter Storm Watch	LOT	24 hr
Nov 9, 2:24 AM CST	Winter Storm Warning	LOT	31 hr
Nov 9, 2:24 AM CST	Winter Weather Advisory	LOT	36 hr
Nov 9, 9:55 PM CST	Mesoscale Discussion	SPC	5 hr
Nov 10, 3:52 AM CST	Mesoscale Discussion	SPC	3 hr
Nov 10, 8:47 AM CST	Mesoscale Discussion	SPC	5 hr
Nov 25, 2:03 AM CST	Wind Advisory	LOT	42 hr
Nov 27, 3:07 AM CST	Winter Storm Watch	LOT	32 hr
Nov 28, 2:03 AM CST	Winter Storm Warning	LOT	48 hr
Nov 30, 1:51 AM CST	Winter Weather Advisory	LOT	10 hr
Dec 1, 1:54 AM CST	Winter Weather Advisory	LOT	25 hr
Dec 6, 2:34 AM CST	Winter Weather Advisory	LOT	32 hr
Dec 12, 2:28 PM CST	Cold Weather Advisory	LOT	46 hr
Dec 26, 5:19 AM CST	Dense Fog Advisory	LOT	6 hr
Dec 27, 1:25 PM CST	Wind Advisory	LOT	50 hr
Dec 28, 3:09 AM CST	Dense Fog Advisory	LOT	6 hr
Dec 28, 1:17 PM CST	Areal Flood Advisory	LOT	5 hr
Dec 28, 9:07 PM CST	Winter Weather Advisory	LOT	13 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	27
Tornado Warning	1
Severe Thunderstorm Watch	5
Tornado Watch	3
Mesoscale Discussion	14
Special Weather Statement	9
Flooding
Areal Flood Warning	3
Flash Flood Warning	11
River Flood Warning	1
Flood Watch	7
Areal Flood Advisory	38
Winter
Winter Storm Warning	2
Winter Storm Watch	3
Winter Weather Advisory	10
Heat
Extreme Heat Warning	1
Extreme Heat Watch	2
Heat Advisory	2
Cold
Freeze Warning	1
Cold Weather Advisory	5
Frost Advisory	1
Wind and dust
Dust Storm Warning	2
High Wind Warning	1
High Wind Watch	1
Wind Advisory	11
Fire
Red Flag Warning	1
Fire Weather Watch	3
Fog and smoke
Dense Fog Advisory	6
Coast and beach
Beach Hazards Statement	11

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2024 2026

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.