Alert archive / Minnesota / Koochiching County
Weather alerts in Koochiching County, Minnesota, 2010
137 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 137
- Warnings
- 35
- Watches
- 11
- Advisories
- 25
- Busiest month
- July38 alerts
- Busiest day
- May 24, 201010 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 4 tornado warnings covering Koochiching County in 2010 had a tornado report inside them.
Koochiching County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 4 | 78% | 6 | 50% | 48 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 0% |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 34 | 9 | 74% | 14 | 93% | 19 min |
| NWS Duluth, MN: severe thunderstorm warnings | 155 | 54 | 65% | 168 | 80% | 27 min |
| NWS Duluth, MN: flash flood warnings | 12 | 4 | 67% | 9 | 56% | 56 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, 3:06 AM CST | Wind Chill Advisory | DLH | 33 hr |
| Jan 7, 3:05 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Jan 21, 6:15 PM CST | Winter Weather Advisory | DLH | 9 hr |
| Jan 22, 3:40 AM CST | Winter Storm Watch | DLH | 25 hr |
| Jan 22, 3:01 PM CST | Winter Weather Advisory | DLH | 4 days |
| Jan 23, 4:18 AM CST | Winter Storm Warning | DLH | 3 days |
| Jan 27, 3:13 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 6, 3:34 PM CST | Winter Weather Advisory | DLH | 53 hr |
| Mar 8, 6:36 AM CST | Dense Fog Advisory | DLH | 4 hr |
| Apr 10, 10:17 AM CDT | Red Flag Warning | DLH | 10 hr |
| Apr 16, 4:33 AM CDT | Red Flag Warning | DLH | 15 hr |
| Apr 27, 2:51 PM CDT | Fire Weather Watch | DLH | 13 hr |
| Apr 28, 3:35 AM CDT | Red Flag Warning | DLH | 16 hr |
| May 24, 3:06 AM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| May 24, 3:10 AM CDT | Severe Thunderstorm Warning | DLH | 64 min |
| May 24, 6:42 AM CDT | Special Weather Statement | DLH | 48 min |
| May 24, 7:50 AM CDT | Mesoscale Discussion | SPC | 55 min |
| May 24, 9:44 AM CDT | Special Weather Statement | DLH | 16 min |
| May 24, 10:10 AM CDT | Special Weather Statement | DLH | 35 min |
| May 24, 10:50 AM CDT | Special Weather Statement | DLH | 15 min |
| May 24, 11:09 AM CDT | Special Weather Statement | DLH | 21 min |
| May 24, 5:10 PM CDT | Special Weather Statement | DLH | 20 min |
| May 24, 5:33 PM CDT | Special Weather Statement | DLH | 12 min |
| May 24, 7:41 PM CDT | Special Weather Statement | DLH | 19 min |
| May 24, 8:49 PM CDT | Special Weather Statement | DLH | 26 min |
| May 24, 9:02 PM CDT | Severe Thunderstorm Warning | DLH | 43 min |
| May 24, 9:14 PM CDT | Tornado Warning | DLH | 31 min |
| Jun 4, 3:41 PM CDT | Special Weather Statement | DLH | 34 min |
| Jun 4, 4:39 PM CDT | Special Weather Statement | DLH | 36 min |
| Jun 4, 5:14 PM CDT | Special Weather Statement | DLH | 16 min |
| Jun 17, 1:06 PM CDT | Special Weather Statement | DLH | 54 min |
| Jun 17, 1:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 17, 2:10 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jun 17, 2:30 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 17, 3:02 PM CDT | Severe Thunderstorm Warning | DLH | 33 min |
| Jun 17, 3:19 PM CDT | Severe Thunderstorm Warning | DLH | 41 min |
| Jun 17, 3:35 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 18, 1:16 PM CDT | Wind Advisory | DLH | 6 hr |
| Jun 21, 3:49 PM CDT | Special Weather Statement | DLH | 26 min |
| Jun 21, 4:12 PM CDT | Tornado Warning | DLH | 33 min |
| Jun 21, 6:19 PM CDT | Special Weather Statement | DLH | 56 min |
| Jun 21, 6:36 PM CDT | Severe Thunderstorm Warning | DLH | 54 min |
| Jun 21, 6:53 PM CDT | Tornado Warning | DLH | 52 min |
| Jun 24, 2:04 PM CDT | Special Weather Statement | DLH | 26 min |
| Jun 24, 2:08 PM CDT | Special Weather Statement | DLH | 22 min |
| Jun 24, 2:23 PM CDT | Severe Thunderstorm Warning | DLH | 52 min |
| Jun 24, 2:35 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 24, 2:54 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 24, 3:02 PM CDT | Severe Thunderstorm Warning | DLH | 43 min |
| Jun 24, 3:14 PM CDT | Severe Thunderstorm Warning | DLH | 31 min |
| Jun 27, 9:40 PM CDT | Special Weather Statement | DLH | 35 min |
| Jul 1, 2:56 AM CDT | Special Weather Statement | DLH | 44 min |
| Jul 1, 3:40 AM CDT | Special Weather Statement | DLH | 35 min |
| Jul 1, 4:05 AM CDT | Special Weather Statement | DLH | 55 min |
| Jul 1, 6:23 AM CDT | Areal Flood Advisory | DLH | 2 hr |
| Jul 1, 7:05 AM CDT | Flash Flood Warning | DLH | 94 min |
| Jul 3, 5:20 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 3, 10:46 PM CDT | Special Weather Statement | DLH | 44 min |
| Jul 3, 11:23 PM CDT | Special Weather Statement | DLH | 37 min |
| Jul 3, 11:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 4, 1:33 AM CDT | Areal Flood Advisory | DLH | 6 hr |
| Jul 4, 5:01 AM CDT | Flash Flood Warning | DLH | 3 hr |
| Jul 10, 11:04 PM CDT | Special Weather Statement | DLH | 56 min |
| Jul 11, 1:13 AM CDT | Special Weather Statement | DLH | 77 min |
| Jul 14, 12:28 AM CDT | Special Weather Statement | DLH | 32 min |
| Jul 14, 1:04 AM CDT | Special Weather Statement | DLH | 56 min |
| Jul 14, 4:14 AM CDT | Special Weather Statement | DLH | 61 min |
| Jul 14, 5:14 AM CDT | Special Weather Statement | DLH | 46 min |
| Jul 14, 6:34 AM CDT | Special Weather Statement | DLH | 11 min |
| Jul 14, 7:13 AM CDT | Special Weather Statement | DLH | 17 min |
| Jul 14, 8:28 AM CDT | Special Weather Statement | DLH | 62 min |
| Jul 14, 3:00 PM CDT | Special Weather Statement | DLH | 30 min |
| Jul 14, 3:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 14, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 15, 4:45 PM CDT | Special Weather Statement | DLH | 30 min |
| Jul 22, 5:52 PM CDT | Special Weather Statement | DLH | 83 min |
| Jul 22, 6:09 PM CDT | Tornado Warning | DLH | 43 min |
| Jul 22, 6:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 24, 5:29 AM CDT | Special Weather Statement | DLH | 61 min |
| Jul 26, 10:12 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 12:25 AM CDT | Special Weather Statement | DLH | 65 min |
| Jul 27, 12:57 AM CDT | Special Weather Statement | DLH | 63 min |
| Jul 27, 1:47 AM CDT | Severe Thunderstorm Warning | DLH | 43 min |
| Jul 27, 2:25 AM CDT | Severe Thunderstorm Warning | DLH | 35 min |
| Jul 30, 3:36 PM CDT | Special Weather Statement | DLH | 54 min |
| Jul 30, 5:14 PM CDT | Special Weather Statement | DLH | 46 min |
| Jul 30, 5:34 PM CDT | Special Weather Statement | DLH | 26 min |
| Jul 30, 5:45 PM CDT | Severe Thunderstorm Warning | DLH | 45 min |
| Jul 30, 6:26 PM CDT | Severe Thunderstorm Warning | DLH | 60 min |
| Aug 1, 2:02 PM CDT | Special Weather Statement | DLH | 13 min |
| Aug 1, 3:24 PM CDT | Special Weather Statement | DLH | 21 min |
| Aug 1, 8:14 PM CDT | Areal Flood Advisory | DLH | 6 hr |
| Aug 2, 3:29 PM CDT | Special Weather Statement | DLH | 46 min |
| Aug 2, 5:09 PM CDT | Special Weather Statement | DLH | 51 min |
| Aug 2, 6:04 PM CDT | Special Weather Statement | DLH | 41 min |
| Aug 2, 6:46 PM CDT | Severe Thunderstorm Warning | DLH | 59 min |
| Aug 3, 1:18 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Aug 8, 6:46 PM CDT | Special Weather Statement | DLH | 44 min |
| Aug 8, 7:11 PM CDT | Severe Thunderstorm Warning | DLH | 49 min |
| Aug 8, 7:55 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Aug 8, 8:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 8, 8:22 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 8, 8:26 PM CDT | Special Weather Statement | DLH | 34 min |
| Aug 8, 8:45 PM CDT | Special Weather Statement | DLH | 60 min |
| Aug 8, 10:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 17, 6:23 PM CDT | Special Weather Statement | DLH | 52 min |
| Aug 17, 8:46 PM CDT | Special Weather Statement | DLH | 59 min |
| Aug 21, 9:21 PM CDT | Dense Fog Advisory | DLH | 12 hr |
| Aug 29, 5:50 PM CDT | Special Weather Statement | DLH | 25 min |
| Aug 30, 9:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Aug 30, 10:00 PM CDT | Special Weather Statement | DLH | 45 min |
| Aug 30, 10:33 PM CDT | Severe Thunderstorm Warning | DLH | 57 min |
| Sep 4, 12:06 PM CDT | Frost Advisory | DLH | 19 hr |
| Sep 9, 12:35 AM CDT | Frost Advisory | DLH | 7 hr |
| Sep 14, 3:29 PM CDT | Frost Advisory | DLH | 16 hr |
| Sep 17, 3:44 PM CDT | Freeze Warning | DLH | 12 hr |
| Sep 18, 3:33 PM CDT | Freeze Warning | DLH | 12 hr |
| Sep 25, 3:33 AM CDT | Frost Advisory | DLH | 28 hr |
| Sep 27, 10:36 AM CDT | Special Weather Statement | DLH | 29 min |
| Oct 1, 3:31 PM CDT | Freeze Warning | DLH | 16 hr |
| Oct 2, 2:41 PM CDT | Freeze Warning | DLH | 17 hr |
| Nov 18, 3:39 PM CST | Winter Weather Advisory | DLH | 20 hr |
| Nov 20, 2:55 PM CST | Winter Weather Advisory | DLH | 27 hr |
| Nov 22, 4:09 AM CST | Winter Weather Advisory | DLH | 19 hr |
| Nov 22, 9:51 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Nov 22, 1:11 PM CST | Winter Storm Warning | DLH | 10 hr |
| Nov 23, 3:53 AM CST | Winter Storm Watch | DLH | 28 hr |
| Nov 23, 3:31 PM CST | Winter Weather Advisory | DLH | 42 hr |
| Nov 28, 3:27 PM CST | Winter Storm Watch | DLH | 13 hr |
| Nov 29, 4:03 AM CST | Winter Storm Warning | DLH | 55 hr |
| Dec 8, 3:51 PM CST | Winter Weather Advisory | DLH | 29 hr |
| Dec 11, 3:20 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Dec 12, 3:35 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Dec 20, 4:25 AM CST | Winter Weather Advisory | DLH | 43 hr |
| Dec 28, 9:46 PM CST | Winter Storm Watch | DLH | 18 hr |
| Dec 29, 3:53 PM CST | Winter Storm Warning | DLH | 68 hr |
| Dec 30, 5:43 PM CST | Mesoscale Discussion | SPC | 4 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 | 18 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 56 |
| Flooding | |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 9 |
| Cold | |
| Freeze Warning | 4 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.