Alert archive / Minnesota / Koochiching County
Weather alerts in Koochiching County, Minnesota, 2008
138 weather alerts in 2008, 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 2008. Tap one for its archive.
- Alerts
- 138
- Warnings
- 64
- Watches
- 18
- Advisories
- 33
- Busiest month
- July39 alerts
- Busiest day
- July 15, 200812 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 5 tornado warnings covering Koochiching County in 2008 had a tornado report inside them.
Koochiching County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 48 | 5 | 90% | 8 | 25% | 15 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 19 | 1 | 95% | 3 | 33% | 13 min |
| NWS Duluth, MN: severe thunderstorm warnings | 249 | 43 | 83% | 110 | 64% | 25 min |
| NWS Duluth, MN: flash flood warnings | 2 | 1 | 50% | 5 | 40% | 63 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, 3:20 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Jan 17, 3:31 AM CST | Wind Chill Advisory | DLH | 4 days |
| Jan 18, 3:41 AM CST | Wind Chill Warning | DLH | 12 hr |
| Jan 22, 3:33 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Jan 23, 2:53 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Jan 28, 4:13 AM CST | Snow and Blowing Snow Advisory | DLH | 12 hr |
| Jan 28, 4:13 AM CST | Wind Chill Watch | DLH | 12 hr |
| Jan 28, 4:10 PM CST | Wind Chill Warning | DLH | 44 hr |
| Jan 28, 4:10 PM CST | Winter Weather Advisory | DLH | 31 hr |
| Jan 30, 12:09 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 8, 3:54 AM CST | Wind Chill Watch | DLH | 25 hr |
| Feb 8, 3:28 PM CST | Winter Weather Advisory | DLH | 30 hr |
| Feb 9, 4:33 AM CST | Wind Chill Warning | DLH | 52 hr |
| Feb 10, 4:41 AM CST | Wind Chill Advisory | DLH | 31 hr |
| Feb 14, 3:16 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 16, 3:27 PM CST | Winter Weather Advisory | DLH | 8 hr |
| Feb 19, 3:32 AM CST | Wind Chill Advisory | DLH | 32 hr |
| Feb 19, 3:36 PM CST | Wind Chill Warning | DLH | 20 hr |
| Apr 4, 3:31 PM CDT | Winter Storm Watch | DLH | 13 hr |
| Apr 5, 4:36 AM CDT | Winter Storm Warning | DLH | 53 hr |
| Apr 10, 4:24 PM CDT | Winter Weather Advisory | DLH | 23 hr |
| Apr 23, 4:27 AM CDT | Flood Watch | DLH | 58 hr |
| Apr 24, 4:25 AM CDT | Winter Storm Watch | DLH | 24 hr |
| Apr 25, 4:17 AM CDT | Winter Storm Warning | DLH | 38 hr |
| May 17, 3:47 PM CDT | Frost Advisory | DLH | 17 hr |
| May 18, 2:30 PM CDT | Frost Advisory | DLH | 16 hr |
| May 20, 3:29 PM CDT | Frost Advisory | DLH | 15 hr |
| May 25, 2:25 PM CDT | Mesoscale Discussion | SPC | 35 min |
| May 25, 2:45 PM CDT | Tornado Watch | SPC | 6 hr |
| May 25, 4:24 PM CDT | Severe Thunderstorm Warning | DLH | 66 min |
| May 25, 4:42 PM CDT | Severe Thunderstorm Warning | DLH | 13 min |
| May 25, 5:20 PM CDT | Severe Thunderstorm Warning | DLH | 55 min |
| May 25, 6:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 25, 6:08 PM CDT | Severe Thunderstorm Warning | DLH | 67 min |
| May 25, 6:51 PM CDT | Severe Thunderstorm Warning | DLH | 24 min |
| May 25, 10:14 PM CDT | Severe Thunderstorm Warning | DLH | 37 min |
| May 26, 3:58 AM CDT | Freeze Watch | DLH | 11 hr |
| May 26, 2:39 PM CDT | Freeze Warning | DLH | 16 hr |
| May 27, 4:57 AM CDT | Freeze Watch | DLH | 10 hr |
| May 27, 3:03 PM CDT | Freeze Warning | DLH | 16 hr |
| Jun 2, 3:27 PM CDT | Frost Advisory | DLH | 16 hr |
| Jun 5, 11:01 AM CDT | Flash Flood Watch | DLH | 22 hr |
| Jun 6, 10:09 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 6, 10:28 AM CDT | Tornado Watch | SPC | 5 hr |
| Jun 6, 2:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 6, 3:20 PM CDT | Wind Advisory | DLH | 5 hr |
| Jun 9, 3:44 PM CDT | Severe Thunderstorm Warning | DLH | 40 min |
| Jun 12, 6:15 PM CDT | Severe Thunderstorm Warning | DLH | 27 min |
| Jun 12, 7:11 PM CDT | Severe Thunderstorm Warning | DLH | 16 min |
| Jun 12, 7:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 12, 7:32 PM CDT | Severe Thunderstorm Warning | DLH | 43 min |
| Jun 12, 8:58 PM CDT | Severe Thunderstorm Warning | DLH | 62 min |
| Jun 12, 9:28 PM CDT | Severe Thunderstorm Warning | DLH | 22 min |
| Jun 13, 12:55 AM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jun 13, 12:59 AM CDT | Severe Thunderstorm Warning | DLH | 46 min |
| Jun 13, 1:40 AM CDT | Severe Thunderstorm Warning | DLH | 65 min |
| Jun 14, 6:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 7:39 PM CDT | Tornado Warning | DLH | 36 min |
| Jun 14, 8:07 PM CDT | Severe Thunderstorm Warning | DLH | 38 min |
| Jun 14, 8:13 PM CDT | Tornado Warning | DLH | 40 min |
| Jun 14, 10:25 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jun 27, 12:32 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 3:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 27, 4:21 PM CDT | Severe Thunderstorm Warning | DLH | 54 min |
| Jun 27, 5:14 PM CDT | Severe Thunderstorm Warning | DLH | 31 min |
| Jul 1, 3:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 1, 4:50 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 1, 7:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 8:05 PM CDT | Severe Thunderstorm Warning | DLH | 45 min |
| Jul 9, 3:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 9, 5:03 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| Jul 9, 5:17 PM CDT | Severe Thunderstorm Warning | DLH | 43 min |
| Jul 9, 5:46 PM CDT | Severe Thunderstorm Warning | DLH | 44 min |
| Jul 9, 6:31 PM CDT | Severe Thunderstorm Warning | DLH | 59 min |
| Jul 11, 6:52 AM CDT | Severe Thunderstorm Warning | DLH | 53 min |
| Jul 11, 7:40 AM CDT | Severe Thunderstorm Warning | DLH | 35 min |
| Jul 11, 7:42 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 11, 8:24 AM CDT | Severe Thunderstorm Warning | DLH | 66 min |
| Jul 11, 9:02 AM CDT | Severe Thunderstorm Warning | DLH | 27 min |
| Jul 11, 10:17 AM CDT | Severe Thunderstorm Warning | DLH | 58 min |
| Jul 11, 2:26 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 11, 4:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 11, 5:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 11, 5:55 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jul 14, 3:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 14, 7:03 PM CDT | Severe Thunderstorm Warning | DLH | 57 min |
| Jul 14, 7:16 PM CDT | Severe Thunderstorm Warning | DLH | 59 min |
| Jul 14, 7:34 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 14, 7:48 PM CDT | Severe Thunderstorm Warning | DLH | 57 min |
| Jul 14, 8:11 PM CDT | Severe Thunderstorm Warning | DLH | 34 min |
| Jul 14, 9:05 PM CDT | Severe Thunderstorm Warning | DLH | 55 min |
| Jul 14, 9:26 PM CDT | Tornado Warning | DLH | 49 min |
| Jul 14, 9:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 14, 10:26 PM CDT | Severe Thunderstorm Warning | DLH | 64 min |
| Jul 14, 10:51 PM CDT | Severe Thunderstorm Warning | DLH | 54 min |
| Jul 15, 5:34 PM CDT | Severe Thunderstorm Warning | DLH | 41 min |
| Jul 15, 6:07 PM CDT | Tornado Warning | DLH | 23 min |
| Jul 20, 1:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 20, 2:46 PM CDT | Severe Thunderstorm Warning | DLH | 27 min |
| Jul 20, 2:52 PM CDT | Severe Thunderstorm Warning | DLH | 38 min |
| Jul 24, 4:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 29, 12:56 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 29, 3:48 AM CDT | Severe Thunderstorm Warning | DLH | 57 min |
| Jul 31, 6:33 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| Jul 31, 7:15 PM CDT | Severe Thunderstorm Warning | DLH | 60 min |
| Aug 4, 5:06 AM CDT | Dense Fog Advisory | DLH | 4 hr |
| Aug 24, 1:46 PM CDT | Frost Advisory | DLH | 18 hr |
| Aug 27, 2:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 28, 2:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 28, 2:31 PM CDT | Severe Thunderstorm Warning | DLH | 24 min |
| Sep 8, 3:28 PM CDT | Frost Advisory | DLH | 16 hr |
| Sep 11, 9:49 PM CDT | Dense Fog Advisory | DLH | 13 hr |
| Sep 26, 4:39 AM CDT | Severe Thunderstorm Warning | DLH | 66 min |
| Sep 26, 4:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 26, 4:49 AM CDT | Tornado Warning | DLH | 56 min |
| Sep 26, 7:29 AM CDT | Severe Thunderstorm Warning | DLH | 61 min |
| Sep 26, 8:29 AM CDT | Severe Thunderstorm Warning | DLH | 61 min |
| Sep 26, 10:05 AM CDT | Severe Thunderstorm Warning | DLH | 55 min |
| Sep 26, 10:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Sep 26, 12:39 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 26, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 25, 3:47 PM CDT | Winter Weather Advisory | DLH | 21 hr |
| Nov 11, 10:41 PM CST | Winter Weather Advisory | DLH | 10 hr |
| Nov 23, 10:11 AM CST | Freezing Rain Advisory | DLH | 11 hr |
| Dec 10, 10:02 AM CST | Winter Weather Advisory | DLH | 10 hr |
| Dec 11, 3:48 PM CST | Winter Storm Watch | DLH | 24 hr |
| Dec 12, 3:33 PM CST | Winter Storm Warning | DLH | 68 hr |
| Dec 14, 11:23 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 14, 9:24 PM CST | Wind Chill Advisory | DLH | 36 hr |
| Dec 15, 9:15 AM CST | Wind Chill Warning | DLH | 24 hr |
| Dec 18, 3:49 PM CST | Winter Storm Watch | DLH | 23 hr |
| Dec 19, 3:14 PM CST | Winter Storm Warning | DLH | 63 hr |
| Dec 21, 9:50 AM CST | Wind Chill Advisory | DLH | 26 hr |
| Dec 21, 9:50 AM CST | Winter Weather Advisory | DLH | 8 hr |
| Dec 22, 7:35 PM CST | Winter Weather Advisory | DLH | 25 hr |
| Dec 25, 3:31 PM CST | Winter Weather Advisory | DLH | 38 hr |
| Dec 28, 3:38 PM CST | Winter Weather Advisory | DLH | 18 hr |
| Dec 30, 2:59 PM CST | Wind Chill 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 | 48 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 23 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Freezing Rain Advisory | 1 |
| Snow and Blowing Snow Advisory | 1 |
| Winter Weather Advisory | 11 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 5 |
| Freeze Watch | 2 |
| Wind Chill Watch | 2 |
| Frost Advisory | 6 |
| Wind Chill Advisory | 11 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.