Alert archive / Wisconsin / Vernon County
Weather alerts in Vernon County, Wisconsin, 2024
114 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Vernon County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 114
- Warnings
- 30
- Watches
- 18
- Advisories
- 38
- Busiest month
- July23 alerts
- Busiest day
- July 14, 202410 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Vernon County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 5 | 44% | 9 | 78% | 12 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 83 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 21 | 7 | 67% | 20 | 60% | 17 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 136 | 75 | 45% | 265 | 71% | 20 min |
| NWS La Crosse, WI: flash flood warnings | 21 | 12 | 43% | 40 | 53% | 82 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 7, 3:05 AM CST | Winter Storm Watch | ARX | 23 hr |
| Jan 8, 2:34 AM CST | Winter Storm Warning | ARX | 45 hr |
| Jan 10, 2:28 PM CST | Winter Storm Watch | ARX | 24 hr |
| Jan 11, 2:25 AM CST | Winter Storm Warning | ARX | 46 hr |
| Jan 12, 2:49 PM CST | Winter Weather Advisory | ARX | 36 hr |
| Jan 13, 3:05 AM CST | Wind Chill Advisory | ARX | 4 days |
| Jan 14, 1:19 PM CST | Wind Chill Advisory | ARX | 68 hr |
| Jan 15, 2:18 PM CST | Wind Chill Advisory | ARX | 43 hr |
| Jan 18, 2:59 AM CST | Wind Chill Advisory | ARX | 31 hr |
| Jan 19, 2:10 AM CST | Wind Chill Advisory | ARX | 31 hr |
| Jan 20, 3:11 AM CST | Wind Chill Advisory | ARX | 30 hr |
| Jan 23, 2:33 PM CST | Dense Fog Advisory | ARX | 18 hr |
| Jan 24, 9:49 PM CST | Dense Fog Advisory | ARX | 14 hr |
| Jan 25, 2:22 PM CST | Dense Fog Advisory | ARX | 20 hr |
| Jan 26, 1:44 PM CST | Dense Fog Advisory | ARX | 21 hr |
| Jan 27, 1:33 PM CST | Dense Fog Advisory | ARX | 41 hr |
| Jan 31, 2:01 PM CST | Dense Fog Advisory | ARX | 21 hr |
| Feb 14, 3:15 AM CST | Winter Weather Advisory | ARX | 26 hr |
| Mar 21, 3:21 AM CDT | Winter Weather Advisory | ARX | 32 hr |
| Mar 23, 1:34 PM CDT | Winter Weather Advisory | ARX | 35 hr |
| Apr 2, 3:55 AM CDT | Winter Weather Advisory | ARX | 32 hr |
| Apr 2, 11:38 AM CDT | Winter Storm Warning | ARX | 22 hr |
| Apr 2, 2:36 PM CDT | Wind Advisory | ARX | 30 hr |
| Apr 18, 1:57 PM CDT | Frost Advisory | ARX | 18 hr |
| Apr 19, 1:47 PM CDT | Freeze Warning | ARX | 18 hr |
| Apr 20, 1:37 PM CDT | Freeze Warning | ARX | 18 hr |
| Apr 24, 2:17 PM CDT | Frost Advisory | ARX | 18 hr |
| May 7, 6:14 AM CDT | Special Weather Statement | ARX | 16 min |
| May 10, 6:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 10, 7:33 PM CDT | Special Weather Statement | ARX | 27 min |
| May 18, 3:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 21, 12:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 21, 1:14 PM CDT | Tornado Watch | SPC | 8 hr |
| May 21, 6:47 PM CDT | Severe Thunderstorm Warning | ARX | 43 min |
| May 21, 6:55 PM CDT | Severe Thunderstorm Warning | ARX | 65 min |
| May 22, 5:25 AM CDT | River Flood Watch | ARX | 35 hr |
| May 22, 9:03 PM CDT | River Flood Warning | ARX | 13 hr |
| May 28, 1:02 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 1, 9:32 PM CDT | Dense Fog Advisory | ARX | 11 hr |
| Jun 3, 2:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 2:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 17, 3:09 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 17, 7:45 PM CDT | Special Weather Statement | ARX | 75 min |
| Jun 17, 8:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 20, 3:07 PM CDT | Flood Watch | ARX | 52 hr |
| Jun 21, 3:34 AM CDT | River Flood Watch | ARX | 21 days |
| Jun 21, 11:45 AM CDT | River Flood Watch | ARX | 3 days |
| Jun 21, 11:45 AM CDT | River Flood Watch | ARX | 3 days |
| Jun 21, 1:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 11:12 AM CDT | River Flood Warning | ARX | 55 hr |
| Jun 22, 11:12 AM CDT | River Flood Warning | ARX | 56 hr |
| Jun 22, 11:34 AM CDT | River Flood Warning | ARX | 21 days |
| Jun 22, 6:22 PM CDT | Flash Flood Warning | ARX | 3 hr |
| Jun 24, 12:23 PM CDT | Flood Watch | ARX | 15 hr |
| Jun 24, 5:37 PM CDT | Mesoscale Discussion | SPC | 98 min |
| Jun 24, 5:57 PM CDT | Special Weather Statement | ARX | 63 min |
| Jun 24, 6:14 PM CDT | Severe Thunderstorm Warning | ARX | 46 min |
| Jun 28, 11:09 AM CDT | River Flood Watch | ARX | 11 hr |
| Jun 28, 10:04 PM CDT | River Flood Warning | ARX | 21 days |
| Jul 2, 9:42 PM CDT | River Flood Warning | ARX | 8 hr |
| Jul 3, 7:41 AM CDT | River Flood Warning | ARX | 35 hr |
| Jul 4, 7:26 PM CDT | Special Weather Statement | ARX | 49 min |
| Jul 5, 12:11 AM CDT | River Flood Warning | ARX | 20 hr |
| Jul 5, 8:19 PM CDT | River Flood Warning | ARX | 23 hr |
| Jul 13, 3:38 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 13, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 13, 6:39 PM CDT | Severe Thunderstorm Warning | ARX | 51 min |
| Jul 14, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 14, 2:32 AM CDT | Severe Thunderstorm Warning | ARX | 43 min |
| Jul 14, 2:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 14, 2:55 AM CDT | Special Weather Statement | ARX | 65 min |
| Jul 14, 3:41 AM CDT | Special Weather Statement | ARX | 49 min |
| Jul 14, 3:55 AM CDT | Severe Thunderstorm Warning | ARX | 35 min |
| Jul 14, 5:54 AM CDT | River Flood Warning | ARX | 20 hr |
| Jul 14, 7:02 AM CDT | River Flood Watch | ARX | 3 days |
| Jul 14, 7:02 AM CDT | River Flood Warning | ARX | 37 hr |
| Jul 14, 7:02 AM CDT | River Flood Warning | ARX | 3 days |
| Jul 14, 8:28 PM CDT | River Flood Warning | ARX | 60 hr |
| Jul 15, 11:15 PM CDT | Special Weather Statement | ARX | 75 min |
| Jul 21, 7:36 PM CDT | Severe Thunderstorm Warning | ARX | 24 min |
| Jul 21, 7:57 PM CDT | Special Weather Statement | ARX | 33 min |
| Jul 29, 4:44 PM CDT | Special Weather Statement | ARX | 46 min |
| Jul 31, 8:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 2:11 AM CDT | Flood Watch | ARX | 22 hr |
| Aug 5, 5:24 PM CDT | Tornado Watch | SPC | 7 hr |
| Aug 5, 9:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 24, 1:58 PM CDT | Heat Advisory | ARX | 30 hr |
| Aug 25, 2:47 AM CDT | Excessive Heat Warning | ARX | 41 hr |
| Aug 26, 1:57 PM CDT | Heat Advisory | ARX | 29 hr |
| Aug 29, 7:46 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 29, 11:14 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Sep 19, 7:28 PM CDT | Special Weather Statement | ARX | 32 min |
| Sep 20, 3:24 AM CDT | Dense Fog Advisory | ARX | 3 hr |
| Sep 21, 1:15 PM CDT | Special Weather Statement | ARX | 45 min |
| Sep 21, 2:01 PM CDT | Severe Thunderstorm Warning | ARX | 29 min |
| Sep 21, 4:47 PM CDT | Severe Thunderstorm Warning | ARX | 58 min |
| Oct 6, 1:34 PM CDT | Frost Advisory | ARX | 19 hr |
| Oct 14, 3:22 AM CDT | Frost Advisory | ARX | 30 hr |
| Oct 14, 2:20 PM CDT | Freeze Warning | ARX | 43 hr |
| Oct 24, 9:02 PM CDT | Special Weather Statement | ARX | 88 min |
| Nov 3, 8:30 PM CST | Dense Fog Advisory | ARX | 10 hr |
| Nov 21, 2:39 AM CST | Wind Advisory | ARX | 11 hr |
| Dec 3, 2:03 PM CST | Wind Advisory | ARX | 32 hr |
| Dec 13, 3:47 AM CST | Winter Weather Advisory | ARX | 47 hr |
| Dec 14, 8:16 PM CST | Dense Fog Advisory | ARX | 36 hr |
| Dec 18, 1:25 PM CST | Winter Weather Advisory | ARX | 38 hr |
| Dec 19, 9:48 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 22, 3:01 PM CST | Winter Weather Advisory | ARX | 25 hr |
| Dec 26, 2:10 AM CST | Dense Fog Advisory | ARX | 34 hr |
| Dec 26, 3:56 AM CST | Winter Weather Advisory | ARX | 8 hr |
| Dec 28, 6:09 PM CST | Dense Fog Advisory | ARX | 18 hr |
| Dec 29, 5:11 PM CST | Dense Fog Advisory | ARX | 31 hr |
| Dec 31, 5:57 PM CST | Special Weather Statement | ARX | 48 min |
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 | 9 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 13 |
| Flood Watch | 3 |
| River Flood Watch | 6 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 9 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.