Alert archive / Minnesota / Koochiching County
Weather alerts in Koochiching County, Minnesota, 2026
97 weather alerts in 2026, 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 2026. Tap one for its archive.
- Alerts
- 97
- Warnings
- 35
- Watches
- 19
- Advisories
- 27
- Busiest month
- July33 alerts
- Busiest day
- June 10, 20265 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 Koochiching County in 2026 had a tornado report inside them.
Koochiching County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 17 | 6 | 65% | 3 | 33% | 45 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 14 | 0 | 100% | 2 | 0% | |
| NWS Duluth, MN: severe thunderstorm warnings | 125 | 70 | 44% | 191 | 81% | 25 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 5, 2:22 PM CST | Dense Fog Advisory | DLH | 22 hr |
| Jan 12, 1:50 PM CST | Winter Weather Advisory | DLH | 40 hr |
| Jan 15, 3:47 PM CST | Snow Squall Warning | DLH | 58 min |
| Jan 15, 4:51 PM CST | Snow Squall Warning | DLH | 54 min |
| Jan 17, 1:10 PM CST | Cold Weather Advisory | DLH | 71 hr |
| Jan 20, 12:43 PM CST | Extreme Cold Watch | DLH | 49 hr |
| Jan 20, 12:43 PM CST | Extreme Cold Warning | DLH | 4 days |
| Jan 23, 2:40 PM CST | Cold Weather Advisory | DLH | 69 hr |
| Jan 25, 1:23 PM CST | Extreme Cold Warning | DLH | 23 hr |
| Jan 29, 12:50 PM CST | Cold Weather Advisory | DLH | 22 hr |
| Feb 13, 5:15 AM CST | Dense Fog Advisory | DLH | 4 hr |
| Feb 15, 2:32 PM CST | Winter Storm Watch | DLH | 35 hr |
| Feb 16, 1:23 PM CST | Winter Storm Warning | DLH | 55 hr |
| Feb 17, 1:45 AM CST | Winter Weather Advisory | DLH | 58 hr |
| Feb 17, 10:08 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 26, 11:02 AM CST | Wind Advisory | DLH | 37 hr |
| Mar 6, 11:31 AM CST | Winter Weather Advisory | DLH | 18 hr |
| Mar 11, 12:54 PM CDT | Winter Storm Warning | DLH | 54 hr |
| Mar 12, 4:50 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 30, 11:09 AM CDT | Winter Weather Advisory | DLH | 24 hr |
| Mar 31, 2:24 PM CDT | Winter Storm Watch | DLH | 11 hr |
| Apr 1, 1:13 AM CDT | Winter Weather Advisory | DLH | 54 hr |
| Apr 1, 1:59 PM CDT | Winter Storm Watch | DLH | 36 hr |
| Apr 3, 2:10 AM CDT | Winter Storm Warning | DLH | 45 hr |
| Apr 8, 9:58 AM CDT | Snow Squall Warning | DLH | 62 min |
| Apr 8, 10:56 AM CDT | Snow Squall Warning | DLH | 64 min |
| Apr 14, 6:02 PM CDT | Dense Fog Advisory | DLH | 12 hr |
| Apr 19, 2:10 PM CDT | Fire Weather Watch | DLH | 13 hr |
| Apr 20, 3:15 AM CDT | Red Flag Warning | DLH | 17 hr |
| May 12, 6:06 PM CDT | Frost Advisory | DLH | 14 hr |
| May 13, 9:51 AM CDT | Fire Weather Watch | DLH | 26 hr |
| May 14, 10:10 AM CDT | Red Flag Warning | DLH | 7 hr |
| May 14, 11:25 AM CDT | Red Flag Warning | DLH | 34 hr |
| May 16, 1:25 PM CDT | Frost Advisory | DLH | 19 hr |
| May 19, 2:09 PM CDT | Freeze Warning | DLH | 18 hr |
| May 25, 3:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 5, 11:37 AM CDT | Fire Weather Watch | DLH | 38 hr |
| Jun 9, 1:15 AM CDT | Heat Advisory | DLH | 19 hr |
| Jun 10, 2:39 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 10, 12:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 10, 12:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 2:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 4:50 PM CDT | Severe Thunderstorm Warning | DLH | 55 min |
| Jun 25, 4:02 AM CDT | Dense Fog Advisory | DLH | 4 hr |
| Jun 29, 10:13 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 29, 12:49 PM CDT | Severe Thunderstorm Warning | DLH | 56 min |
| Jun 29, 1:30 PM CDT | Severe Thunderstorm Warning | DLH | 60 min |
| Jun 29, 1:37 PM CDT | Severe Thunderstorm Warning | DLH | 83 min |
| Jun 29, 5:25 PM CDT | Severe Thunderstorm Warning | DLH | 40 min |
| Jun 29, 11:44 PM CDT | Severe Thunderstorm Warning | DLH | 76 min |
| Jul 1, 7:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 6, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 5:41 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| Jul 6, 6:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 10, 1:00 PM CDT | Heat Advisory | DLH | 32 hr |
| Jul 10, 1:00 PM CDT | Extreme Heat Watch | DLH | 25 hr |
| Jul 11, 1:33 PM CDT | Extreme Heat Warning | DLH | 4 days |
| Jul 11, 2:51 PM CDT | Fire Weather Watch | DLH | 9 hr |
| Jul 11, 2:51 PM CDT | Fire Weather Watch | DLH | 31 hr |
| Jul 12, 12:12 AM CDT | Red Flag Warning | DLH | 21 hr |
| Jul 12, 9:39 PM CDT | Fire Weather Watch | DLH | 16 hr |
| Jul 12, 9:39 PM CDT | Red Flag Warning | DLH | 24 hr |
| Jul 13, 1:32 PM CDT | Red Flag Warning | DLH | 31 hr |
| Jul 17, 4:11 AM CDT | Severe Thunderstorm Warning | DLH | 64 min |
| Jul 19, 1:12 AM CDT | Heat Advisory | DLH | 19 hr |
| Jul 24, 2:07 PM CDT | Heat Advisory | DLH | 31 hr |
| Jul 24, 2:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 24, 3:34 PM CDT | Tornado Watch | SPC | 9 hr |
| Jul 24, 5:47 PM CDT | Severe Thunderstorm Warning | DLH | 58 min |
| Jul 24, 6:31 PM CDT | Tornado Warning | DLH | 44 min |
| Jul 24, 7:08 PM CDT | Severe Thunderstorm Warning | DLH | 52 min |
| Jul 24, 7:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 24, 8:10 PM CDT | Severe Thunderstorm Warning | DLH | 65 min |
| Jul 24, 9:14 PM CDT | Areal Flood Advisory | DLH | 6 hr |
| Jul 25, 11:52 AM CDT | Heat Advisory | DLH | 33 hr |
| Jul 26, 11:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 27, 12:45 AM CDT | Severe Thunderstorm Warning | DLH | 60 min |
| Jul 27, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 28, 2:31 PM CDT | Heat Advisory | DLH | 28 hr |
| Jul 30, 1:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 30, 4:32 PM CDT | Severe Thunderstorm Warning | DLH | 58 min |
| Jul 30, 5:14 PM CDT | Severe Thunderstorm Warning | DLH | 31 min |
| Jul 30, 5:51 PM CDT | Severe Thunderstorm Warning | DLH | 33 min |
| Aug 3, 5:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 3, 8:55 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Aug 3, 9:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 6, 6:40 PM CDT | Severe Thunderstorm Warning | DLH | 37 min |
| Aug 25, 1:21 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Sep 3, 11:46 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 3, 3:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 3, 3:46 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 13, 3:26 AM CDT | Frost Advisory | DLH | 29 hr |
| Sep 15, 2:06 PM CDT | Frost Advisory | DLH | 18 hr |
| Sep 20, 4:46 PM CDT | Frost Advisory | DLH | 15 hr |
| Sep 21, 12:59 PM CDT | Frost Advisory | DLH | 19 hr |
| Sep 22, 1:04 PM CDT | Frost Advisory | DLH | 19 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 | 17 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 16 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Winter | |
| Snow Squall Warning | 4 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 5 |
| Heat | |
| Extreme Heat Warning | 1 |
| Extreme Heat Watch | 1 |
| Heat Advisory | 6 |
| Cold | |
| Extreme Cold Warning | 2 |
| Freeze Warning | 1 |
| Extreme Cold Watch | 1 |
| Cold Weather Advisory | 3 |
| Frost Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 6 |
| Fire Weather Watch | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.