Weather alerts in Cook County, Minnesota, 2024

101 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: 101
Warnings: 16
Watches: 12
Advisories: 63
Busiest month: December20 alerts
Busiest day: December 3, 20245 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

0 of 1 tornado warnings covering Cook County in 2024 had a tornado report inside them.

Cook County, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	2	0	100%	0
Flash flood warnings	1	1	0%	2	100%	138 min

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Duluth, MN: tornado warnings	24	5	79%	25	96%	12 min
NWS Duluth, MN: severe thunderstorm warnings	94	52	45%	198	73%	26 min
NWS Duluth, MN: flash flood warnings	12	7	42%	54	83%	145 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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, 2:35 AM CST	Winter Weather Advisory	DLH	71 hr
Jan 8, 2:56 AM CST	Winter Weather Advisory	DLH	33 hr
Jan 10, 2:37 AM CST	Winter Storm Warning	DLH	60 hr
Jan 10, 2:37 AM CST	Winter Weather Advisory	DLH	33 hr
Jan 11, 3:34 PM CST	Winter Weather Advisory	DLH	35 hr
Jan 12, 2:21 PM CST	Wind Advisory	DLH	12 hr
Jan 12, 2:51 PM CST	Wind Chill Advisory	DLH	20 hr
Jan 13, 2:30 PM CST	Wind Chill Advisory	DLH	70 hr
Jan 16, 3:34 PM CST	Wind Chill Advisory	DLH	17 hr
Jan 17, 1:43 PM CST	Wind Chill Advisory	DLH	20 hr
Jan 18, 3:29 PM CST	Wind Chill Advisory	DLH	21 hr
Jan 19, 1:45 PM CST	Wind Chill Advisory	DLH	20 hr
Feb 27, 2:10 PM CST	Wind Chill Advisory	DLH	20 hr
Feb 27, 6:21 PM CST	Wind Advisory	DLH	10 hr
Feb 28, 5:51 PM CST	Wind Chill Advisory	DLH	14 hr
Mar 22, 3:46 AM CDT	Winter Storm Watch	DLH	33 hr
Mar 23, 3:35 AM CDT	Blizzard Warning	DLH	65 hr
Mar 23, 3:35 AM CDT	Winter Storm Warning	DLH	4 days
Mar 25, 12:51 PM CDT	Winter Weather Advisory	DLH	57 hr
Mar 29, 4:08 AM CDT	Winter Weather Advisory	DLH	30 hr
Apr 2, 7:05 PM CDT	Wind Advisory	DLH	20 hr
Apr 16, 2:41 AM CDT	Wind Advisory	DLH	28 hr
Apr 16, 8:43 AM CDT	Red Flag Warning	DLH	12 hr
Apr 27, 2:37 PM CDT	Wind Advisory	DLH	43 hr
Apr 28, 2:27 AM CDT	Winter Weather Advisory	DLH	35 hr
May 3, 2:46 AM CDT	Dense Fog Advisory	DLH	5 hr
May 8, 2:10 AM CDT	Frost Advisory	DLH	31 hr
May 9, 1:46 PM CDT	Frost Advisory	DLH	18 hr
May 9, 1:46 PM CDT	Freeze Warning	DLH	18 hr
May 10, 12:43 PM CDT	Frost Advisory	DLH	19 hr
May 12, 2:50 AM CDT	Frost Advisory	DLH	29 hr
May 13, 2:10 PM CDT	Frost Advisory	DLH	18 hr
May 14, 1:59 PM CDT	Frost Advisory	DLH	17 hr
May 18, 3:26 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 18, 4:15 PM CDT	Special Weather Statement	DLH	30 min
May 20, 3:04 PM CDT	Flood Watch	DLH	40 hr
May 22, 9:04 AM CDT	Areal Flood Advisory	DLH	7 hr
May 22, 1:36 PM CDT	Wind Advisory	DLH	5 hr
May 24, 9:42 AM CDT	Wind Advisory	DLH	10 hr
May 26, 1:20 PM CDT	Dense Fog Advisory	DLH	18 hr
May 28, 2:19 AM CDT	Frost Advisory	DLH	29 hr
May 29, 10:51 AM CDT	Frost Advisory	DLH	20 hr
Jun 4, 4:52 AM CDT	Dense Fog Advisory	DLH	6 hr
Jun 9, 1:46 PM CDT	Frost Advisory	DLH	17 hr
Jun 12, 3:32 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 5:55 PM CDT	Severe Thunderstorm Warning	DLH	35 min
Jun 12, 6:09 PM CDT	Tornado Warning	DLH	36 min
Jun 12, 6:56 PM CDT	Severe Thunderstorm Warning	DLH	49 min
Jun 16, 4:22 PM CDT	Flood Watch	DLH	63 hr
Jun 18, 1:24 PM CDT	Tornado Watch	SPC	8 hr
Jun 18, 6:19 PM CDT	Flash Flood Warning	DLH	6 hr
Jun 18, 11:55 PM CDT	Areal Flood Warning	DLH	6 days
Jun 28, 1:20 PM CDT	Areal Flood Advisory	DLH	6 hr
Jun 28, 10:03 PM CDT	Dense Fog Advisory	DLH	10 hr
Jun 29, 3:26 AM CDT	Special Weather Statement	DLH	34 min
Jun 29, 3:43 AM CDT	Special Weather Statement	DLH	32 min
Jun 30, 3:07 PM CDT	Flood Watch	DLH	43 hr
Jul 6, 3:18 PM CDT	Special Weather Statement	DLH	27 min
Jul 13, 6:57 PM CDT	Special Weather Statement	DLH	33 min
Jul 15, 12:45 PM CDT	Special Weather Statement	DLH	30 min
Jul 15, 2:13 PM CDT	Special Weather Statement	DLH	17 min
Jul 15, 3:06 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 28, 5:58 PM CDT	Special Weather Statement	DLH	32 min
Aug 16, 6:15 AM CDT	Dense Fog Advisory	DLH	4 hr
Aug 24, 2:46 AM CDT	Dense Fog Advisory	DLH	7 hr
Sep 6, 2:33 AM CDT	Frost Advisory	DLH	29 hr
Sep 6, 11:35 AM CDT	Freeze Warning	DLH	20 hr
Sep 19, 5:08 PM CDT	Mesoscale Discussion	SPC	67 min
Sep 19, 5:10 PM CDT	Tornado Watch	SPC	4 hr
Sep 22, 2:44 AM CDT	Frost Advisory	DLH	29 hr
Oct 3, 1:39 PM CDT	Freeze Warning	DLH	19 hr
Oct 5, 1:58 PM CDT	Wind Advisory	DLH	27 hr
Oct 6, 1:54 PM CDT	Frost Advisory	DLH	18 hr
Oct 7, 2:41 PM CDT	Frost Advisory	DLH	17 hr
Oct 16, 2:40 PM CDT	Fire Weather Watch	DLH	11 hr
Nov 3, 5:55 PM CST	Dense Fog Advisory	DLH	16 hr
Nov 10, 2:24 AM CST	Wind Advisory	DLH	32 hr
Nov 11, 2:44 AM CST	High Wind Warning	DLH	7 hr
Nov 18, 1:49 AM CST	Wind Advisory	DLH	34 hr
Nov 20, 8:19 PM CST	Wind Advisory	DLH	26 hr
Nov 24, 2:29 AM CST	Winter Weather Advisory	DLH	40 hr
Dec 2, 2:12 PM CST	Winter Storm Watch	DLH	12 hr
Dec 3, 2:16 AM CST	Winter Weather Advisory	DLH	9 hr
Dec 3, 11:05 AM CST	Winter Storm Warning	DLH	13 hr
Dec 3, 11:05 AM CST	Winter Weather Advisory	DLH	13 hr
Dec 3, 1:20 PM CST	High Wind Warning	DLH	38 hr
Dec 3, 1:20 PM CST	Wind Advisory	DLH	38 hr
Dec 4, 2:53 AM CST	Winter Weather Advisory	DLH	27 hr
Dec 6, 2:24 AM CST	Winter Weather Advisory	DLH	36 hr
Dec 6, 1:15 PM CST	Winter Storm Watch	DLH	25 hr
Dec 7, 2:16 PM CST	Winter Storm Warning	DLH	47 hr
Dec 7, 2:16 PM CST	Winter Weather Advisory	DLH	47 hr
Dec 11, 2:24 AM CST	Cold Weather Advisory	DLH	32 hr
Dec 12, 12:26 AM CST	Wind Advisory	DLH	7 hr
Dec 13, 12:54 PM CST	Winter Weather Advisory	DLH	49 hr
Dec 15, 2:44 AM CST	Dense Fog Advisory	DLH	30 hr
Dec 18, 3:36 AM CST	Winter Storm Watch	DLH	10 hr
Dec 18, 1:15 PM CST	Winter Weather Advisory	DLH	42 hr
Dec 23, 9:00 PM CST	Dense Fog Advisory	DLH	12 hr
Dec 26, 1:09 PM CST	Dense Fog Advisory	DLH	45 hr
Dec 28, 7:55 PM CST	Dense Fog Advisory	DLH	49 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	2
Tornado Warning	1
Severe Thunderstorm Watch	2
Tornado Watch	2
Mesoscale Discussion	2
Special Weather Statement	8
Flooding
Areal Flood Warning	1
Flash Flood Warning	1
Flood Watch	3
Areal Flood Advisory	2
Winter
Blizzard Warning	1
Winter Storm Warning	4
Winter Storm Watch	4
Winter Weather Advisory	15
Cold
Freeze Warning	3
Cold Weather Advisory	1
Frost Advisory	13
Wind Chill Advisory	8
Wind and dust
High Wind Warning	2
Wind Advisory	13
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	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 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. Warning verification from the Mesonet's Cow. Rebuilt daily.