Alert archive / Minnesota / Lake County
Weather alerts in Lake County, Minnesota, 2018
149 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 149
- Warnings
- 37
- Watches
- 23
- Advisories
- 40
- Busiest month
- July29 alerts
- Busiest day
- July 8, 201811 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, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 22 | 12 | 45% | 10 | 100% | 17 min |
| Flash flood warnings | 1 | 1 | 0% | 3 | 0% |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 2 | 0 | 100% | 2 | 0% | |
| NWS Duluth, MN: severe thunderstorm warnings | 220 | 101 | 54% | 213 | 76% | 21 min |
| NWS Duluth, MN: flash flood warnings | 22 | 15 | 32% | 47 | 64% | 178 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, 10:47 AM CST | Wind Chill Advisory | DLH | 23 hr |
| Jan 2, 10:10 AM CST | Wind Chill Advisory | DLH | 25 hr |
| Jan 3, 2:31 PM CST | Wind Chill Warning | DLH | 20 hr |
| Jan 3, 2:31 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Jan 4, 2:51 PM CST | Wind Chill Warning | DLH | 21 hr |
| Jan 5, 2:34 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Jan 9, 3:59 AM CST | Winter Storm Watch | DLH | 24 hr |
| Jan 10, 3:34 AM CST | Winter Weather Advisory | DLH | 41 hr |
| Jan 11, 3:08 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Jan 12, 2:22 PM CST | Wind Chill Warning | DLH | 19 hr |
| Jan 12, 2:22 PM CST | Wind Chill Advisory | DLH | 21 hr |
| Jan 29, 3:20 PM CST | Winter Weather Advisory | DLH | 33 hr |
| Jan 30, 3:12 AM CST | Wind Chill Advisory | DLH | 7 hr |
| Jan 31, 3:47 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 1, 2:09 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 3, 3:31 AM CST | Wind Chill Advisory | DLH | 32 hr |
| Feb 4, 11:59 AM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 5, 2:26 AM CST | Wind Chill Advisory | DLH | 32 hr |
| Feb 7, 1:07 PM CST | Wind Chill Advisory | DLH | 8 hr |
| Feb 8, 2:30 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 11, 3:04 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 15, 3:12 PM CST | Wind Chill Advisory | DLH | 18 hr |
| Feb 17, 3:06 AM CST | Winter Storm Watch | DLH | 18 hr |
| Feb 17, 9:08 PM CST | Winter Storm Warning | DLH | 21 hr |
| Feb 18, 9:51 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 19, 3:43 AM CST | Winter Weather Advisory | DLH | 34 hr |
| Feb 21, 2:54 PM CST | Winter Storm Watch | DLH | 13 hr |
| Feb 21, 2:54 PM CST | Winter Weather Advisory | DLH | 45 hr |
| Feb 22, 4:05 AM CST | Winter Storm Warning | DLH | 32 hr |
| Feb 22, 3:49 PM CST | Winter Storm Watch | DLH | 22 hr |
| Feb 23, 2:05 PM CST | Winter Storm Warning | DLH | 43 hr |
| Feb 24, 4:46 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 3, 3:17 AM CST | Winter Storm Watch | DLH | 36 hr |
| Mar 4, 3:09 PM CST | Winter Weather Advisory | DLH | 42 hr |
| Mar 26, 3:24 AM CDT | Winter Weather Advisory | DLH | 21 hr |
| Mar 29, 3:14 AM CDT | Winter Storm Watch | DLH | 25 hr |
| Mar 30, 3:54 AM CDT | Winter Storm Warning | DLH | 32 hr |
| Mar 30, 3:54 AM CDT | Winter Weather Advisory | DLH | 23 hr |
| Mar 31, 3:05 AM CDT | Winter Weather Advisory | DLH | 7 hr |
| Apr 13, 3:54 AM CDT | Lakeshore Flood Watch | DLH | 11 hr |
| Apr 13, 3:21 PM CDT | Lakeshore Flood Warning | DLH | 52 hr |
| Apr 14, 4:00 AM CDT | Winter Storm Warning | DLH | 51 hr |
| Apr 14, 4:00 AM CDT | Winter Weather Advisory | DLH | 51 hr |
| Apr 14, 4:37 AM CDT | Wind Advisory | DLH | 14 hr |
| May 3, 3:32 PM CDT | Fire Weather Watch | DLH | 13 hr |
| May 4, 4:56 AM CDT | Red Flag Warning | DLH | 14 hr |
| May 26, 2:12 AM CDT | Special Weather Statement | DLH | 33 min |
| May 26, 2:22 PM CDT | Special Weather Statement | DLH | 8 min |
| May 29, 6:32 PM CDT | Special Weather Statement | DLH | 28 min |
| May 29, 6:40 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| May 29, 7:28 PM CDT | Severe Thunderstorm Warning | DLH | 47 min |
| Jun 15, 2:41 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 15, 4:46 AM CDT | Special Weather Statement | DLH | 29 min |
| Jun 16, 10:27 AM CDT | Special Weather Statement | DLH | 18 min |
| Jun 16, 9:47 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 11:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 2:23 PM CDT | Special Weather Statement | DLH | 22 min |
| Jun 17, 2:51 PM CDT | Areal Flood Advisory | DLH | 114 min |
| Jun 23, 12:45 PM CDT | Special Weather Statement | DLH | 30 min |
| Jun 27, 6:37 PM CDT | Special Weather Statement | DLH | 23 min |
| Jun 27, 7:03 PM CDT | Special Weather Statement | DLH | 27 min |
| Jun 29, 2:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 29, 4:14 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 4:41 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 6:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 7:10 AM CDT | Severe Thunderstorm Warning | DLH | 65 min |
| Jun 29, 7:12 AM CDT | Severe Thunderstorm Warning | DLH | 48 min |
| Jun 29, 7:52 AM CDT | Severe Thunderstorm Warning | DLH | 53 min |
| Jun 29, 8:39 AM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jun 29, 9:30 AM CDT | Areal Flood Advisory | DLH | 2 hr |
| Jun 29, 11:56 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 30, 3:21 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 2, 3:19 PM CDT | Flash Flood Watch | DLH | 12 hr |
| Jul 4, 9:10 AM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Jul 4, 9:48 AM CDT | Special Weather Statement | DLH | 42 min |
| Jul 4, 9:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 10:17 AM CDT | Special Weather Statement | DLH | 28 min |
| Jul 4, 10:43 AM CDT | Special Weather Statement | DLH | 32 min |
| Jul 7, 3:53 PM CDT | Flash Flood Watch | DLH | 33 hr |
| Jul 8, 6:59 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 8, 7:35 AM CDT | Severe Thunderstorm Warning | DLH | 40 min |
| Jul 8, 8:40 AM CDT | Special Weather Statement | DLH | 35 min |
| Jul 8, 8:56 AM CDT | Severe Thunderstorm Warning | DLH | 49 min |
| Jul 8, 8:58 AM CDT | Severe Thunderstorm Warning | DLH | 47 min |
| Jul 8, 9:23 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 8, 9:42 AM CDT | Severe Thunderstorm Warning | DLH | 25 min |
| Jul 8, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 5:25 PM CDT | Severe Thunderstorm Warning | DLH | 35 min |
| Jul 8, 5:27 PM CDT | Severe Thunderstorm Warning | DLH | 33 min |
| Jul 8, 5:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 8, 7:12 PM CDT | Flash Flood Warning | DLH | 4 hr |
| Jul 8, 7:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 10:50 PM CDT | Special Weather Statement | DLH | 10 min |
| Jul 11, 8:29 AM CDT | Special Weather Statement | DLH | 31 min |
| Jul 11, 10:43 AM CDT | Special Weather Statement | DLH | 17 min |
| Jul 11, 10:58 AM CDT | Special Weather Statement | DLH | 17 min |
| Jul 11, 11:13 AM CDT | Special Weather Statement | DLH | 17 min |
| Jul 11, 3:10 PM CDT | Flash Flood Watch | DLH | 16 hr |
| Jul 12, 12:57 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 28, 6:19 PM CDT | Special Weather Statement | DLH | 11 min |
| Jul 28, 6:39 PM CDT | Special Weather Statement | DLH | 36 min |
| Jul 31, 9:49 PM CDT | Special Weather Statement | DLH | 26 min |
| Aug 5, 3:54 PM CDT | Special Weather Statement | DLH | 36 min |
| Aug 5, 4:32 PM CDT | Special Weather Statement | DLH | 28 min |
| Aug 7, 8:19 AM CDT | Dense Fog Advisory | DLH | 94 min |
| Aug 8, 4:15 PM CDT | Special Weather Statement | DLH | 30 min |
| Aug 8, 4:37 PM CDT | Special Weather Statement | DLH | 23 min |
| Aug 8, 4:58 PM CDT | Special Weather Statement | DLH | 32 min |
| Aug 8, 5:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 8, 5:04 PM CDT | Special Weather Statement | DLH | 11 min |
| Aug 8, 5:14 PM CDT | Severe Thunderstorm Warning | DLH | 16 min |
| Aug 8, 5:28 PM CDT | Severe Thunderstorm Warning | DLH | 17 min |
| Aug 25, 3:12 AM CDT | Dense Fog Advisory | DLH | 7 hr |
| Aug 26, 2:42 PM CDT | Special Weather Statement | DLH | 33 min |
| Aug 26, 3:14 PM CDT | Special Weather Statement | DLH | 31 min |
| Aug 27, 4:07 AM CDT | Special Weather Statement | DLH | 23 min |
| Aug 31, 4:26 AM CDT | Flash Flood Watch | DLH | 24 hr |
| Aug 31, 6:55 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 31, 8:02 PM CDT | Severe Thunderstorm Warning | DLH | 43 min |
| Aug 31, 8:42 PM CDT | Severe Thunderstorm Warning | DLH | 48 min |
| Aug 31, 9:24 PM CDT | Severe Thunderstorm Warning | DLH | 51 min |
| Aug 31, 10:11 PM CDT | Special Weather Statement | DLH | 34 min |
| Sep 1, 12:42 AM CDT | Severe Thunderstorm Warning | DLH | 33 min |
| Sep 1, 1:25 AM CDT | Special Weather Statement | DLH | 35 min |
| Sep 5, 2:30 PM CDT | Frost Advisory | DLH | 18 hr |
| Sep 12, 5:46 PM CDT | Severe Thunderstorm Warning | DLH | 44 min |
| Sep 14, 10:51 PM CDT | Special Weather Statement | DLH | 24 min |
| Sep 15, 10:18 PM CDT | Special Weather Statement | DLH | 27 min |
| Sep 15, 10:49 PM CDT | Special Weather Statement | DLH | 26 min |
| Sep 15, 11:32 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Sep 21, 2:34 PM CDT | Frost Advisory | DLH | 17 hr |
| Sep 28, 2:55 AM CDT | Freeze Warning | DLH | 30 hr |
| Oct 3, 9:13 AM CDT | Dense Fog Advisory | DLH | 4 hr |
| Oct 3, 2:53 PM CDT | Severe Thunderstorm Warning | DLH | 37 min |
| Oct 3, 3:21 PM CDT | Severe Thunderstorm Warning | DLH | 24 min |
| Oct 3, 7:33 PM CDT | Wind Advisory | DLH | 7 hr |
| Oct 8, 9:32 AM CDT | Flood Watch | DLH | 51 hr |
| Oct 8, 3:39 PM CDT | Lakeshore Flood Watch | DLH | 24 hr |
| Oct 9, 3:50 AM CDT | Wind Advisory | DLH | 36 hr |
| Oct 9, 3:16 PM CDT | Lakeshore Flood Warning | DLH | 30 hr |
| Nov 3, 3:07 PM CDT | Winter Storm Watch | DLH | 12 hr |
| Nov 3, 3:07 PM CDT | Winter Weather Advisory | DLH | 37 hr |
| Dec 22, 3:33 AM CST | Winter Weather Advisory | DLH | 38 hr |
| Dec 25, 3:45 AM CST | Winter Storm Watch | DLH | 24 hr |
| Dec 25, 5:31 PM CST | Winter Storm Warning | DLH | 63 hr |
| Dec 27, 6:07 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 28, 3:04 PM CST | Wind Chill Advisory | DLH | 17 hr |
| Dec 30, 2:03 PM CST | Winter Storm Warning | DLH | 40 hr |
| Dec 30, 2:03 PM CST | Winter Weather Advisory | DLH | 28 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 | 22 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 35 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 4 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 12 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 3 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 17 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| Lakeshore Flood Warning | 2 |
| Lakeshore Flood Watch | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.