Alert archive / Minnesota / Koochiching County
Weather alerts in Koochiching County, Minnesota, 2023
110 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Koochiching County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 110
- Warnings
- 17
- Watches
- 11
- Advisories
- 30
- Busiest month
- June26 alerts
- Busiest day
- July 19, 202310 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Koochiching County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 2 | 67% | 1 | 100% | 1 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 6 | 0 | 100% | 0 | ||
| NWS Duluth, MN: severe thunderstorm warnings | 85 | 53 | 38% | 201 | 67% | 23 min |
| NWS Duluth, MN: flash flood warnings | 6 | 3 | 50% | 15 | 60% | 44 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 16, 1:47 AM CST | Winter Weather Advisory | DLH | 32 hr |
| Jan 27, 1:39 PM CST | Wind Chill Advisory | DLH | 22 hr |
| Jan 28, 2:11 PM CST | Wind Chill Advisory | DLH | 23 hr |
| Jan 29, 1:53 PM CST | Wind Chill Advisory | DLH | 22 hr |
| Jan 30, 1:36 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Jan 31, 1:36 PM CST | Wind Chill Watch | DLH | 24 hr |
| Jan 31, 1:36 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 1, 1:47 PM CST | Wind Chill Warning | DLH | 44 hr |
| Feb 1, 1:47 PM CST | Wind Chill Advisory | DLH | 46 hr |
| Feb 3, 9:54 AM CST | Wind Chill Advisory | DLH | 2 hr |
| Feb 14, 2:38 AM CST | Winter Weather Advisory | DLH | 35 hr |
| Feb 16, 1:21 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 19, 3:05 AM CST | Winter Weather Advisory | DLH | 42 hr |
| Feb 21, 3:04 AM CST | Wind Chill Advisory | DLH | 31 hr |
| Feb 22, 2:20 PM CST | Wind Chill Advisory | DLH | 22 hr |
| Feb 23, 2:00 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Mar 10, 3:19 AM CST | Winter Storm Watch | DLH | 11 hr |
| Mar 10, 2:16 PM CST | Winter Storm Warning | DLH | 61 hr |
| Mar 12, 12:39 PM CDT | Winter Weather Advisory | DLH | 15 hr |
| Mar 15, 3:08 PM CDT | Winter Weather Advisory | DLH | 36 hr |
| Mar 20, 4:00 AM CDT | Winter Storm Watch | DLH | 24 hr |
| Mar 20, 3:59 PM CDT | Winter Storm Warning | DLH | 45 hr |
| Mar 21, 7:34 PM CDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 2, 3:44 AM CDT | Winter Storm Watch | DLH | 35 hr |
| Apr 3, 2:48 PM CDT | Blizzard Warning | DLH | 36 hr |
| Apr 3, 2:48 PM CDT | Winter Storm Warning | DLH | 45 hr |
| Apr 5, 9:59 AM CDT | Winter Weather Advisory | DLH | 8 hr |
| Apr 13, 3:43 PM CDT | Areal Flood Advisory | DLH | 66 hr |
| Apr 16, 9:30 AM CDT | Areal Flood Advisory | DLH | 8 days |
| Apr 19, 4:16 AM CDT | Winter Storm Watch | DLH | 11 hr |
| Apr 19, 3:00 PM CDT | Winter Weather Advisory | DLH | 52 hr |
| Apr 20, 3:01 AM CDT | Winter Storm Warning | DLH | 25 hr |
| Apr 27, 5:30 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| May 1, 3:05 PM CDT | Fire Weather Watch | DLH | 13 hr |
| May 2, 4:27 AM CDT | Red Flag Warning | DLH | 16 hr |
| May 13, 2:45 PM CDT | Fire Weather Watch | DLH | 38 hr |
| May 27, 1:29 PM CDT | Red Flag Warning | DLH | 8 hr |
| May 27, 2:30 PM CDT | Fire Weather Watch | DLH | 12 hr |
| May 28, 2:32 AM CDT | Red Flag Warning | DLH | 18 hr |
| May 28, 2:40 PM CDT | Fire Weather Watch | DLH | 13 hr |
| May 30, 3:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 8:28 PM CDT | Special Weather Statement | DLH | 32 min |
| May 31, 9:29 PM CDT | Special Weather Statement | DLH | 16 min |
| Jun 1, 2:47 AM CDT | Special Weather Statement | DLH | 13 min |
| Jun 1, 7:55 PM CDT | Special Weather Statement | DLH | 20 min |
| Jun 4, 4:17 PM CDT | Special Weather Statement | DLH | 28 min |
| Jun 9, 4:23 PM CDT | Special Weather Statement | DLH | 37 min |
| Jun 9, 5:29 PM CDT | Special Weather Statement | DLH | 31 min |
| Jun 22, 3:21 PM CDT | Special Weather Statement | DLH | 24 min |
| Jun 22, 4:20 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 22, 4:32 PM CDT | Special Weather Statement | DLH | 28 min |
| Jun 22, 4:43 PM CDT | Special Weather Statement | DLH | 17 min |
| Jun 22, 4:57 PM CDT | Special Weather Statement | DLH | 33 min |
| Jun 22, 5:28 PM CDT | Special Weather Statement | DLH | 17 min |
| Jun 27, 1:10 PM CDT | Special Weather Statement | DLH | 35 min |
| Jun 27, 1:20 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 27, 1:25 PM CDT | Special Weather Statement | DLH | 35 min |
| Jun 27, 1:44 PM CDT | Special Weather Statement | DLH | 31 min |
| Jun 27, 1:55 PM CDT | Special Weather Statement | DLH | 20 min |
| Jun 27, 2:52 PM CDT | Special Weather Statement | DLH | 23 min |
| Jun 27, 3:23 PM CDT | Special Weather Statement | DLH | 22 min |
| Jun 27, 4:05 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 28, 7:27 PM CDT | Dense Fog Advisory | DLH | 13 hr |
| Jun 29, 1:18 PM CDT | Special Weather Statement | DLH | 27 min |
| Jun 29, 1:37 PM CDT | Special Weather Statement | DLH | 23 min |
| Jun 29, 1:50 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 29, 2:59 PM CDT | Special Weather Statement | DLH | 16 min |
| Jul 19, 2:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 19, 2:52 PM CDT | Severe Thunderstorm Warning | DLH | 38 min |
| Jul 19, 3:16 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 3:35 PM CDT | Severe Thunderstorm Warning | DLH | 40 min |
| Jul 19, 3:46 PM CDT | Special Weather Statement | DLH | 14 min |
| Jul 19, 4:08 PM CDT | Special Weather Statement | DLH | 37 min |
| Jul 19, 4:15 PM CDT | Special Weather Statement | DLH | 30 min |
| Jul 19, 4:43 PM CDT | Special Weather Statement | DLH | 32 min |
| Jul 19, 5:12 PM CDT | Special Weather Statement | DLH | 33 min |
| Jul 19, 5:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 22, 12:44 PM CDT | Special Weather Statement | DLH | 31 min |
| Jul 22, 1:08 PM CDT | Special Weather Statement | DLH | 37 min |
| Jul 22, 4:12 PM CDT | Special Weather Statement | DLH | 33 min |
| Jul 27, 12:19 AM CDT | Severe Thunderstorm Warning | DLH | 41 min |
| Jul 27, 12:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 12:57 AM CDT | Special Weather Statement | DLH | 33 min |
| Jul 27, 1:11 AM CDT | Special Weather Statement | DLH | 34 min |
| Aug 1, 3:05 PM CDT | Special Weather Statement | DLH | 25 min |
| Aug 1, 3:42 PM CDT | Special Weather Statement | DLH | 33 min |
| Aug 1, 4:10 PM CDT | Special Weather Statement | DLH | 35 min |
| Aug 8, 2:50 PM CDT | Special Weather Statement | DLH | 25 min |
| Aug 8, 2:54 PM CDT | Severe Thunderstorm Warning | DLH | 51 min |
| Aug 8, 3:30 PM CDT | Special Weather Statement | DLH | 15 min |
| Aug 8, 3:40 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Aug 8, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 8, 3:53 PM CDT | Special Weather Statement | DLH | 22 min |
| Aug 8, 4:14 PM CDT | Special Weather Statement | DLH | 31 min |
| Aug 8, 4:46 PM CDT | Special Weather Statement | DLH | 29 min |
| Aug 8, 5:16 PM CDT | Special Weather Statement | DLH | 29 min |
| Aug 8, 5:43 PM CDT | Severe Thunderstorm Warning | DLH | 47 min |
| Aug 8, 9:01 PM CDT | Special Weather Statement | DLH | 29 min |
| Aug 25, 1:58 AM CDT | Special Weather Statement | DLH | 32 min |
| Sep 12, 2:51 AM CDT | Frost Advisory | DLH | 29 hr |
| Sep 17, 5:09 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Sep 29, 7:40 PM CDT | Dense Fog Advisory | DLH | 14 hr |
| Oct 6, 8:55 PM CDT | Frost Advisory | DLH | 12 hr |
| Oct 7, 2:00 PM CDT | Freeze Watch | DLH | 24 hr |
| Oct 8, 2:06 PM CDT | Freeze Warning | DLH | 19 hr |
| Oct 9, 2:38 PM CDT | Freeze Warning | DLH | 18 hr |
| Dec 22, 3:03 PM CST | Dense Fog Advisory | DLH | 42 hr |
| Dec 24, 2:39 PM CST | Winter Weather Advisory | DLH | 61 hr |
| Dec 28, 8:08 PM CST | Dense Fog Advisory | DLH | 10 hr |
| Dec 30, 7:41 AM CST | Winter Weather Advisory | DLH | 16 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.