Alert archive / Minnesota / Lake County
Weather alerts in Lake County, Minnesota, 2015
175 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lake County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 175
- Warnings
- 29
- Watches
- 6
- Advisories
- 56
- Busiest month
- June43 alerts
- Busiest day
- June 28, 201516 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Lake County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 2 | 86% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 2 | 0 | 100% | 0 | ||
| NWS Duluth, MN: severe thunderstorm warnings | 119 | 40 | 66% | 110 | 74% | 19 min |
| NWS Duluth, MN: flash flood warnings | 4 | 0 | 100% | 1 | 0% |
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 2, 3:44 AM CST | Winter Storm Warning | DLH | 44 hr |
| Jan 2, 3:27 PM CST | Winter Weather Advisory | DLH | 47 hr |
| Jan 3, 3:33 PM CST | Wind Chill Watch | DLH | 12 hr |
| Jan 3, 3:33 PM CST | Wind Chill Warning | DLH | 44 hr |
| Jan 3, 3:33 PM CST | Wind Chill Advisory | DLH | 23 hr |
| Jan 5, 3:13 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Jan 6, 3:40 AM CST | Wind Chill Warning | DLH | 32 hr |
| Jan 7, 10:29 AM CST | Wind Chill Advisory | DLH | 20 hr |
| Jan 8, 2:02 PM CST | Wind Chill Advisory | DLH | 44 hr |
| Jan 11, 3:43 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Jan 12, 3:09 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Jan 22, 3:29 PM CST | Winter Weather Advisory | DLH | 21 hr |
| Jan 28, 3:36 PM CST | Freezing Rain Advisory | DLH | 14 hr |
| Jan 31, 3:35 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 3, 3:00 PM CST | Wind Chill Advisory | DLH | 16 hr |
| Feb 9, 3:11 PM CST | Winter Weather Advisory | DLH | 36 hr |
| Feb 11, 2:54 AM CST | Wind Chill Advisory | DLH | 30 hr |
| Feb 13, 3:21 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Feb 16, 3:17 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 17, 3:04 AM CST | Wind Chill Advisory | DLH | 33 hr |
| Feb 18, 11:59 AM CST | Wind Chill Advisory | DLH | 23 hr |
| Feb 20, 3:35 PM CST | Wind Chill Advisory | DLH | 66 hr |
| Feb 21, 3:16 AM CST | Wind Chill Warning | DLH | 33 hr |
| Feb 22, 2:37 PM CST | Wind Chill Warning | DLH | 19 hr |
| Feb 24, 2:49 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 25, 3:03 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Mar 2, 4:22 AM CST | Winter Weather Advisory | DLH | 39 hr |
| Mar 3, 3:22 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Apr 1, 4:06 AM CDT | Fire Weather Watch | DLH | 24 hr |
| Apr 2, 4:30 AM CDT | Red Flag Warning | DLH | 15 hr |
| Apr 9, 8:49 PM CDT | Dense Fog Advisory | DLH | 7 hr |
| Apr 12, 1:30 PM CDT | Fire Weather Watch | DLH | 15 hr |
| Apr 12, 6:19 PM CDT | Special Weather Statement | DLH | 26 min |
| Apr 12, 6:46 PM CDT | Special Weather Statement | DLH | 14 min |
| Apr 12, 7:02 PM CDT | Special Weather Statement | DLH | 13 min |
| Apr 12, 7:19 PM CDT | Special Weather Statement | DLH | 26 min |
| Apr 13, 4:59 AM CDT | Red Flag Warning | DLH | 15 hr |
| Apr 14, 3:16 PM CDT | Fire Weather Watch | DLH | 13 hr |
| Apr 15, 4:36 AM CDT | Red Flag Warning | DLH | 15 hr |
| May 13, 5:34 PM CDT | Special Weather Statement | DLH | 11 min |
| May 27, 2:41 PM CDT | Special Weather Statement | DLH | 34 min |
| May 30, 3:18 PM CDT | Freeze Warning | DLH | 17 hr |
| May 31, 3:05 PM CDT | Frost Advisory | DLH | 17 hr |
| Jun 4, 3:32 AM CDT | Dense Fog Advisory | DLH | 7 hr |
| Jun 5, 3:15 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Jun 8, 2:39 PM CDT | Special Weather Statement | DLH | 6 min |
| Jun 8, 2:40 PM CDT | Special Weather Statement | DLH | 20 min |
| Jun 9, 6:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 9, 7:18 PM CDT | Special Weather Statement | DLH | 27 min |
| Jun 9, 7:43 PM CDT | Special Weather Statement | DLH | 17 min |
| Jun 9, 8:10 PM CDT | Special Weather Statement | DLH | 20 min |
| Jun 11, 1:19 PM CDT | Special Weather Statement | DLH | 11 min |
| Jun 14, 5:53 AM CDT | Dense Fog Advisory | DLH | 3 hr |
| Jun 20, 4:26 PM CDT | Special Weather Statement | DLH | 49 min |
| Jun 20, 5:01 PM CDT | Special Weather Statement | DLH | 29 min |
| Jun 20, 5:33 PM CDT | Special Weather Statement | DLH | 27 min |
| Jun 22, 4:01 PM CDT | Special Weather Statement | DLH | 29 min |
| Jun 22, 4:30 PM CDT | Special Weather Statement | DLH | 15 min |
| Jun 25, 5:36 PM CDT | Special Weather Statement | DLH | 9 min |
| Jun 25, 6:37 PM CDT | Special Weather Statement | DLH | 38 min |
| Jun 25, 7:16 PM CDT | Special Weather Statement | DLH | 29 min |
| Jun 27, 1:22 PM CDT | Special Weather Statement | DLH | 8 min |
| Jun 27, 1:31 PM CDT | Special Weather Statement | DLH | 14 min |
| Jun 27, 1:46 PM CDT | Special Weather Statement | DLH | 14 min |
| Jun 27, 1:58 PM CDT | Severe Thunderstorm Warning | DLH | 17 min |
| Jun 27, 2:25 PM CDT | Special Weather Statement | DLH | 20 min |
| Jun 27, 2:45 PM CDT | Special Weather Statement | DLH | 15 min |
| Jun 27, 3:05 PM CDT | Flash Flood Warning | DLH | 3 hr |
| Jun 28, 12:01 PM CDT | Special Weather Statement | DLH | 14 min |
| Jun 28, 12:16 PM CDT | Special Weather Statement | DLH | 14 min |
| Jun 28, 12:31 PM CDT | Special Weather Statement | DLH | 14 min |
| Jun 28, 12:48 PM CDT | Special Weather Statement | DLH | 12 min |
| Jun 28, 1:05 PM CDT | Special Weather Statement | DLH | 10 min |
| Jun 28, 1:23 PM CDT | Special Weather Statement | DLH | 22 min |
| Jun 28, 1:48 PM CDT | Special Weather Statement | DLH | 12 min |
| Jun 28, 2:07 PM CDT | Special Weather Statement | DLH | 23 min |
| Jun 28, 2:40 PM CDT | Special Weather Statement | DLH | 20 min |
| Jun 28, 3:02 PM CDT | Special Weather Statement | DLH | 13 min |
| Jun 28, 3:21 PM CDT | Special Weather Statement | DLH | 9 min |
| Jun 28, 3:34 PM CDT | Special Weather Statement | DLH | 11 min |
| Jun 28, 3:51 PM CDT | Special Weather Statement | DLH | 9 min |
| Jun 28, 4:05 PM CDT | Special Weather Statement | DLH | 10 min |
| Jun 28, 4:21 PM CDT | Special Weather Statement | DLH | 24 min |
| Jun 28, 5:09 PM CDT | Special Weather Statement | DLH | 36 min |
| Jun 28, 7:10 PM CDT | Special Weather Statement | DLH | 35 min |
| Jun 29, 9:45 AM CDT | Special Weather Statement | DLH | 45 min |
| Jul 3, 3:13 AM CDT | Special Weather Statement | DLH | 32 min |
| Jul 5, 5:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 5, 8:48 PM CDT | Special Weather Statement | DLH | 27 min |
| Jul 5, 8:57 PM CDT | Severe Thunderstorm Warning | DLH | 48 min |
| Jul 5, 9:18 PM CDT | Special Weather Statement | DLH | 27 min |
| Jul 5, 9:43 PM CDT | Severe Thunderstorm Warning | DLH | 47 min |
| Jul 12, 10:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 12, 10:23 AM CDT | Special Weather Statement | DLH | 37 min |
| Jul 12, 11:38 AM CDT | Special Weather Statement | DLH | 67 min |
| Jul 12, 11:18 PM CDT | Special Weather Statement | DLH | 42 min |
| Jul 23, 7:00 PM CDT | Special Weather Statement | DLH | 30 min |
| Jul 29, 3:50 AM CDT | Wind Advisory | DLH | 15 hr |
| Jul 30, 12:59 PM CDT | Special Weather Statement | DLH | 16 min |
| Jul 30, 1:14 PM CDT | Special Weather Statement | DLH | 16 min |
| Jul 30, 2:14 PM CDT | Special Weather Statement | DLH | 16 min |
| Jul 30, 2:17 PM CDT | Severe Thunderstorm Warning | DLH | 28 min |
| Jul 30, 2:44 PM CDT | Severe Thunderstorm Warning | DLH | 16 min |
| Jul 30, 3:03 PM CDT | Special Weather Statement | DLH | 12 min |
| Jul 30, 4:22 PM CDT | Special Weather Statement | DLH | 23 min |
| Jul 30, 4:47 PM CDT | Special Weather Statement | DLH | 13 min |
| Jul 31, 3:16 PM CDT | Special Weather Statement | DLH | 14 min |
| Jul 31, 3:22 PM CDT | Severe Thunderstorm Warning | DLH | 23 min |
| Jul 31, 3:43 PM CDT | Special Weather Statement | DLH | 17 min |
| Aug 2, 1:08 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 2:27 AM CDT | Severe Thunderstorm Warning | DLH | 33 min |
| Aug 2, 3:02 AM CDT | Special Weather Statement | DLH | 13 min |
| Aug 2, 3:17 AM CDT | Special Weather Statement | DLH | 13 min |
| Aug 7, 8:40 PM CDT | Dense Fog Advisory | DLH | 13 hr |
| Aug 8, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 8, 4:06 PM CDT | Severe Thunderstorm Warning | DLH | 24 min |
| Aug 8, 4:29 PM CDT | Severe Thunderstorm Warning | DLH | 31 min |
| Aug 8, 4:53 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Aug 8, 4:58 PM CDT | Severe Thunderstorm Warning | DLH | 32 min |
| Aug 8, 6:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 8, 7:47 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Aug 9, 5:04 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Aug 22, 9:47 PM CDT | Special Weather Statement | DLH | 28 min |
| Aug 28, 1:18 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| Aug 28, 6:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 28, 10:01 PM CDT | Severe Thunderstorm Warning | DLH | 29 min |
| Aug 28, 10:29 PM CDT | Severe Thunderstorm Warning | DLH | 31 min |
| Aug 28, 11:04 PM CDT | Special Weather Statement | DLH | 41 min |
| Aug 29, 12:29 AM CDT | Areal Flood Advisory | DLH | 3 hr |
| Aug 29, 1:15 AM CDT | Special Weather Statement | DLH | 15 min |
| Aug 29, 1:29 AM CDT | Flash Flood Warning | DLH | 3 hr |
| Aug 29, 1:29 AM CDT | Special Weather Statement | DLH | 16 min |
| Aug 29, 1:47 AM CDT | Special Weather Statement | DLH | 28 min |
| Aug 29, 2:09 AM CDT | Special Weather Statement | DLH | 36 min |
| Aug 29, 2:42 AM CDT | Special Weather Statement | DLH | 33 min |
| Sep 3, 2:08 AM CDT | Dense Fog Advisory | DLH | 10 hr |
| Sep 5, 1:11 AM CDT | Special Weather Statement | DLH | 19 min |
| Sep 5, 11:18 PM CDT | Special Weather Statement | DLH | 27 min |
| Sep 6, 2:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 6, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 6, 6:08 PM CDT | Special Weather Statement | DLH | 22 min |
| Sep 6, 6:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 6:33 PM CDT | Special Weather Statement | DLH | 12 min |
| Sep 6, 6:48 PM CDT | Special Weather Statement | DLH | 12 min |
| Sep 6, 7:05 PM CDT | Special Weather Statement | DLH | 25 min |
| Sep 6, 7:19 PM CDT | Severe Thunderstorm Warning | DLH | 26 min |
| Sep 11, 2:54 PM CDT | Frost Advisory | DLH | 16 hr |
| Sep 17, 12:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 17, 4:33 PM CDT | Special Weather Statement | DLH | 27 min |
| Sep 23, 10:39 AM CDT | Areal Flood Advisory | DLH | 3 hr |
| Sep 23, 3:56 PM CDT | Areal Flood Advisory | DLH | 6 hr |
| Sep 24, 7:41 PM CDT | Dense Fog Advisory | DLH | 17 hr |
| Sep 25, 3:35 PM CDT | Dense Fog Advisory | DLH | 18 hr |
| Sep 26, 10:02 AM CDT | Dense Fog Advisory | DLH | 118 min |
| Sep 26, 7:19 PM CDT | Dense Fog Advisory | DLH | 13 hr |
| Sep 28, 3:01 PM CDT | Frost Advisory | DLH | 17 hr |
| Sep 28, 3:01 PM CDT | Freeze Warning | DLH | 17 hr |
| Sep 29, 2:43 PM CDT | Freeze Warning | DLH | 17 hr |
| Sep 30, 2:52 PM CDT | Frost Advisory | DLH | 17 hr |
| Oct 1, 2:49 PM CDT | Frost Advisory | DLH | 17 hr |
| Oct 2, 3:17 PM CDT | Frost Advisory | DLH | 17 hr |
| Oct 6, 2:48 PM CDT | Freeze Warning | DLH | 17 hr |
| Nov 3, 6:22 PM CST | Dense Fog Advisory | DLH | 42 hr |
| Nov 12, 4:11 AM CST | Winter Weather Advisory | DLH | 32 hr |
| Nov 18, 3:44 AM CST | Dense Fog Advisory | DLH | 6 hr |
| Nov 18, 8:51 AM CST | Areal Flood Advisory | DLH | 12 hr |
| Nov 18, 9:17 AM CST | Dense Fog Advisory | DLH | 99 min |
| Nov 18, 3:38 PM CST | Winter Weather Advisory | DLH | 32 hr |
| Nov 29, 2:07 PM CST | Winter Weather Advisory | DLH | 61 hr |
| Dec 15, 2:48 PM CST | Winter Weather Advisory | DLH | 27 hr |
| Dec 16, 3:36 AM CST | Winter Storm Warning | DLH | 17 hr |
| Dec 16, 11:36 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 23, 2:07 PM CST | Winter Weather Advisory | DLH | 9 hr |
| Dec 25, 2:41 PM CST | Winter Weather Advisory | DLH | 31 hr |
| Dec 28, 3:57 AM CST | Winter Weather Advisory | DLH | 29 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 | 14 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 74 |
| Flooding | |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 2 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 11 |
| Cold | |
| Freeze Warning | 4 |
| Wind Chill Warning | 4 |
| Wind Chill Watch | 1 |
| Frost Advisory | 6 |
| Wind Chill Advisory | 17 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 14 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.