Alert archive / Minnesota / Cook County
Weather alerts in Cook County, Minnesota, 2019
119 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 119
- Warnings
- 26
- Watches
- 12
- Advisories
- 48
- Busiest month
- July31 alerts
- Busiest day
- July 18, 201913 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 reports fell inside a warning.
Cook County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 6 | 3 | 50% | 4 | 100% | 31 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 10 | 4 | 60% | 13 | 38% | 11 min |
| NWS Duluth, MN: severe thunderstorm warnings | 142 | 50 | 65% | 138 | 66% | 22 min |
| NWS Duluth, MN: flash flood warnings | 9 | 5 | 44% | 9 | 67% | 68 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 1, 1:38 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Jan 5, 3:14 AM CST | Winter Storm Watch | DLH | 24 hr |
| Jan 5, 2:53 PM CST | Winter Storm Warning | DLH | 40 hr |
| Jan 6, 3:29 AM CST | Winter Weather Advisory | DLH | 36 hr |
| Jan 7, 2:15 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 11, 9:11 AM CST | Winter Weather Advisory | DLH | 25 hr |
| Jan 15, 2:10 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Jan 17, 3:35 AM CST | Wind Chill Advisory | DLH | 32 hr |
| Jan 18, 2:51 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Jan 19, 2:20 PM CST | Wind Chill Warning | DLH | 22 hr |
| Jan 20, 3:15 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Jan 20, 3:15 PM CST | Winter Weather Advisory | DLH | 45 hr |
| Jan 23, 3:08 PM CST | Wind Chill Advisory | DLH | 45 hr |
| Jan 24, 3:05 AM CST | Wind Chill Watch | DLH | 12 hr |
| Jan 24, 3:31 PM CST | Wind Chill Warning | DLH | 20 hr |
| Jan 25, 12:15 PM CST | Wind Chill Warning | DLH | 24 hr |
| Jan 26, 3:45 PM CST | Wind Chill Warning | DLH | 20 hr |
| Jan 27, 2:28 PM CST | Wind Chill Warning | DLH | 18 hr |
| Jan 28, 4:20 AM CST | Wind Chill Watch | DLH | 10 hr |
| Jan 28, 1:59 PM CST | Wind Chill Warning | DLH | 69 hr |
| Feb 1, 3:24 AM CST | Wind Chill Advisory | DLH | 6 hr |
| Feb 3, 3:06 AM CST | Winter Weather Advisory | DLH | 36 hr |
| Feb 4, 2:50 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Feb 5, 3:39 PM CST | Winter Weather Advisory | DLH | 43 hr |
| Feb 6, 10:49 AM CST | Winter Storm Warning | DLH | 37 hr |
| Feb 7, 2:52 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Feb 8, 2:17 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 11, 3:04 PM CST | Winter Weather Advisory | DLH | 30 hr |
| Feb 19, 3:39 AM CST | Winter Storm Warning | DLH | 47 hr |
| Feb 19, 2:32 PM CST | Winter Weather Advisory | DLH | 36 hr |
| Feb 22, 3:26 AM CST | Winter Storm Watch | DLH | 35 hr |
| Feb 23, 2:51 PM CST | Blizzard Warning | DLH | 30 hr |
| Feb 23, 2:51 PM CST | Winter Weather Advisory | DLH | 33 hr |
| Feb 24, 5:58 PM CST | Wind Chill Advisory | DLH | 17 hr |
| Feb 24, 5:58 PM CST | Winter Weather Advisory | DLH | 6 hr |
| Feb 25, 3:29 AM CST | Wind Advisory | DLH | 6 hr |
| Feb 25, 2:43 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Mar 2, 3:08 AM CST | Wind Chill Advisory | DLH | 33 hr |
| Mar 3, 2:42 AM CST | Wind Chill Advisory | DLH | 33 hr |
| Mar 4, 9:27 PM CST | Wind Chill Advisory | DLH | 9 hr |
| Mar 12, 3:05 AM CDT | Flood Watch | DLH | 68 hr |
| Mar 12, 6:46 PM CDT | Dense Fog Advisory | DLH | 18 hr |
| Mar 27, 11:30 AM CDT | Special Weather Statement | DLH | 30 min |
| Apr 7, 8:30 AM CDT | Dense Fog Advisory | DLH | 9 hr |
| Apr 9, 4:00 AM CDT | Winter Storm Watch | DLH | 24 hr |
| Apr 10, 4:05 AM CDT | Winter Storm Warning | DLH | 57 hr |
| Apr 11, 3:48 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 28, 3:50 PM CDT | Winter Weather Advisory | DLH | 27 hr |
| May 8, 9:51 AM CDT | Winter Weather Advisory | DLH | 24 hr |
| May 8, 2:27 PM CDT | Winter Storm Warning | DLH | 20 hr |
| May 25, 4:01 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| May 27, 2:45 PM CDT | Frost Advisory | DLH | 17 hr |
| Jun 1, 2:52 AM CDT | Frost Advisory | DLH | 29 hr |
| Jun 1, 3:21 PM CDT | Freeze Warning | DLH | 17 hr |
| Jun 2, 3:09 PM CDT | Freeze Warning | DLH | 16 hr |
| Jun 12, 3:06 PM CDT | Frost Advisory | DLH | 16 hr |
| Jul 3, 1:45 PM CDT | Special Weather Statement | DLH | 30 min |
| Jul 3, 2:14 PM CDT | Special Weather Statement | DLH | 31 min |
| Jul 4, 4:09 PM CDT | Special Weather Statement | DLH | 36 min |
| Jul 4, 4:24 PM CDT | Special Weather Statement | DLH | 21 min |
| Jul 4, 7:26 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Jul 4, 7:28 PM CDT | Special Weather Statement | DLH | 17 min |
| Jul 10, 2:03 PM CDT | Special Weather Statement | DLH | 27 min |
| Jul 10, 2:36 PM CDT | Special Weather Statement | DLH | 24 min |
| Jul 10, 3:04 PM CDT | Special Weather Statement | DLH | 11 min |
| Jul 15, 1:50 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 15, 3:33 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| Jul 15, 4:12 PM CDT | Severe Thunderstorm Warning | DLH | 63 min |
| Jul 15, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 17, 8:40 PM CDT | Special Weather Statement | DLH | 35 min |
| Jul 17, 8:56 PM CDT | Special Weather Statement | DLH | 19 min |
| Jul 17, 9:20 PM CDT | Special Weather Statement | DLH | 10 min |
| Jul 17, 9:35 PM CDT | Special Weather Statement | DLH | 10 min |
| Jul 17, 9:47 PM CDT | Special Weather Statement | DLH | 13 min |
| Jul 17, 10:03 PM CDT | Special Weather Statement | DLH | 12 min |
| Jul 17, 11:05 PM CDT | Special Weather Statement | DLH | 25 min |
| Jul 17, 11:34 PM CDT | Severe Thunderstorm Warning | DLH | 41 min |
| Jul 18, 12:19 AM CDT | Special Weather Statement | DLH | 26 min |
| Jul 18, 12:46 AM CDT | Special Weather Statement | DLH | 29 min |
| Jul 18, 1:13 AM CDT | Special Weather Statement | DLH | 32 min |
| Jul 18, 1:46 AM CDT | Special Weather Statement | DLH | 29 min |
| Jul 18, 1:54 AM CDT | Severe Thunderstorm Warning | DLH | 22 min |
| Jul 26, 2:26 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 26, 5:40 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jul 26, 6:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 6:29 PM CDT | Severe Thunderstorm Warning | DLH | 61 min |
| Jul 26, 7:32 PM CDT | Special Weather Statement | DLH | 28 min |
| Aug 1, 12:35 PM CDT | Special Weather Statement | DLH | 25 min |
| Aug 3, 7:12 AM CDT | Special Weather Statement | DLH | 33 min |
| Aug 3, 7:49 AM CDT | Special Weather Statement | DLH | 26 min |
| Aug 3, 8:07 AM CDT | Special Weather Statement | DLH | 23 min |
| Aug 20, 8:25 AM CDT | Special Weather Statement | DLH | 35 min |
| Sep 15, 7:44 PM CDT | Dense Fog Advisory | DLH | 15 hr |
| Sep 17, 5:10 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Sep 17, 5:40 PM CDT | Special Weather Statement | DLH | 35 min |
| Sep 25, 3:42 PM CDT | Frost Advisory | DLH | 17 hr |
| Sep 27, 1:52 PM CDT | Frost Advisory | DLH | 17 hr |
| Oct 3, 3:03 PM CDT | Frost Advisory | DLH | 17 hr |
| Oct 11, 3:36 PM CDT | Winter Weather Advisory | DLH | 32 hr |
| Nov 16, 3:02 PM CST | Winter Weather Advisory | DLH | 25 hr |
| Nov 19, 6:39 PM CST | Dense Fog Advisory | DLH | 6 hr |
| Nov 20, 3:53 AM CST | Winter Storm Warning | DLH | 32 hr |
| Nov 20, 7:35 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Nov 25, 3:10 PM CST | Winter Storm Warning | DLH | 53 hr |
| Nov 27, 1:43 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 27, 3:58 PM CST | Winter Storm Watch | DLH | 45 hr |
| Nov 29, 3:26 AM CST | Winter Storm Warning | DLH | 60 hr |
| Dec 7, 3:29 PM CST | Winter Weather Advisory | DLH | 51 hr |
| Dec 9, 3:06 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Dec 10, 2:48 AM CST | Wind Chill Advisory | DLH | 33 hr |
| Dec 12, 2:31 PM CST | Winter Storm Watch | DLH | 13 hr |
| Dec 13, 3:25 AM CST | Winter Storm Warning | DLH | 26 hr |
| Dec 13, 3:25 AM CST | Winter Weather Advisory | DLH | 49 hr |
| Dec 16, 2:08 PM CST | Wind Chill Watch | DLH | 24 hr |
| Dec 17, 2:27 PM CST | Wind Chill Warning | DLH | 20 hr |
| Dec 24, 3:25 PM CST | Dense Fog Advisory | DLH | 42 hr |
| Dec 25, 3:53 AM CST | Winter Weather Advisory | DLH | 31 hr |
| Dec 26, 2:33 PM CST | Winter Storm Watch | DLH | 24 hr |
| Dec 27, 2:46 PM CST | Winter Storm Warning | DLH | 3 days |
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 | 6 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 27 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 10 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 16 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 7 |
| Wind Chill Watch | 3 |
| Frost Advisory | 6 |
| Wind Chill Advisory | 17 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.