Alert archive / Wisconsin / Vernon County
Weather alerts in Vernon County, Wisconsin, 2015
87 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 87
- Warnings
- 11
- Watches
- 13
- Advisories
- 29
- Busiest month
- July16 alerts
- Busiest day
- July 13, 201510 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 2 | 33% | 5 | 20% | 9 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 4 | 0 | 100% | 4 | 0% | |
| NWS La Crosse, WI: severe thunderstorm warnings | 47 | 33 | 30% | 124 | 83% | 23 min |
| NWS La Crosse, WI: flash flood warnings | 9 | 5 | 44% | 20 | 75% | 74 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 3, 3:10 PM CST | Winter Storm Watch | ARX | 37 hr |
| Jan 4, 3:56 AM CST | Wind Chill Advisory | ARX | 32 hr |
| Jan 5, 4:00 AM CST | Winter Weather Advisory | ARX | 19 hr |
| Jan 6, 3:47 AM CST | Wind Chill Warning | ARX | 32 hr |
| Jan 7, 11:46 AM CST | Wind Chill Advisory | ARX | 21 hr |
| Jan 8, 4:49 AM CST | Winter Weather Advisory | ARX | 28 hr |
| Jan 8, 8:00 PM CST | Wind Chill Advisory | ARX | 37 hr |
| Jan 25, 8:23 PM CST | Winter Weather Advisory | ARX | 24 hr |
| Jan 28, 2:59 PM CST | Freezing Rain Advisory | ARX | 15 hr |
| Jan 31, 3:45 AM CST | Winter Weather Advisory | ARX | 41 hr |
| Feb 3, 3:21 AM CST | Winter Weather Advisory | ARX | 16 hr |
| Feb 8, 3:48 AM CST | Freezing Rain Advisory | ARX | 6 hr |
| Feb 10, 3:53 AM CST | Winter Weather Advisory | ARX | 20 hr |
| Feb 13, 3:07 PM CST | Wind Chill Advisory | ARX | 39 hr |
| Feb 17, 3:00 AM CST | Wind Chill Advisory | ARX | 33 hr |
| Feb 18, 11:45 AM CST | Wind Chill Advisory | ARX | 24 hr |
| Feb 20, 3:06 PM CST | Wind Chill Advisory | ARX | 67 hr |
| Mar 2, 4:14 AM CST | Winter Weather Advisory | ARX | 34 hr |
| Mar 21, 3:33 PM CDT | Winter Weather Advisory | ARX | 39 hr |
| Mar 22, 2:50 PM CDT | Winter Storm Warning | ARX | 16 hr |
| Mar 23, 12:47 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 24, 4:08 AM CDT | Winter Weather Advisory | ARX | 26 hr |
| Mar 29, 6:45 AM CDT | Freezing Rain Advisory | ARX | 2 hr |
| Apr 7, 5:29 PM CDT | Special Weather Statement | ARX | 46 min |
| Apr 14, 3:27 PM CDT | Fire Weather Watch | ARX | 13 hr |
| Apr 15, 4:16 AM CDT | Red Flag Warning | ARX | 16 hr |
| May 3, 8:40 PM CDT | Special Weather Statement | ARX | 80 min |
| May 3, 9:41 PM CDT | Special Weather Statement | ARX | 109 min |
| May 12, 3:29 PM CDT | Frost Advisory | ARX | 16 hr |
| May 17, 1:25 PM CDT | Special Weather Statement | ARX | 35 min |
| May 17, 2:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 25, 6:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 29, 4:51 PM CDT | Special Weather Statement | ARX | 54 min |
| May 29, 5:56 PM CDT | Special Weather Statement | ARX | 2 hr |
| Jun 7, 3:21 AM CDT | Special Weather Statement | ARX | 114 min |
| Jun 10, 1:46 PM CDT | Flash Flood Watch | ARX | 32 hr |
| Jun 15, 1:28 PM CDT | Special Weather Statement | ARX | 92 min |
| Jun 20, 7:41 AM CDT | Special Weather Statement | ARX | 94 min |
| Jun 22, 4:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 6:03 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 22, 7:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 29, 1:57 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 29, 5:20 PM CDT | Severe Thunderstorm Warning | ARX | 55 min |
| Jun 29, 7:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 12, 9:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 12, 9:59 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 11:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 13, 2:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 2:11 AM CDT | Special Weather Statement | ARX | 94 min |
| Jul 13, 1:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 3:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 4:39 PM CDT | Severe Thunderstorm Warning | ARX | 66 min |
| Jul 13, 5:13 PM CDT | Severe Thunderstorm Warning | ARX | 77 min |
| Jul 13, 6:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 18, 12:23 AM CDT | Mesoscale Discussion | SPC | 67 min |
| Jul 18, 12:41 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 18, 2:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 18, 3:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 18, 3:09 AM CDT | Special Weather Statement | ARX | 66 min |
| Jul 18, 12:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 2, 2:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 2:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 2:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 1:35 PM CDT | Tornado Watch | SPC | 8 hr |
| Aug 22, 6:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Sep 6, 5:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 2:43 AM CDT | Flash Flood Watch | ARX | 7 hr |
| Sep 8, 7:17 AM CDT | Areal Flood Advisory | ARX | 118 min |
| Sep 17, 2:30 PM CDT | Special Weather Statement | ARX | 60 min |
| Sep 17, 3:39 PM CDT | Special Weather Statement | ARX | 36 min |
| Oct 16, 3:04 AM CDT | Freeze Warning | ARX | 30 hr |
| Nov 10, 3:23 PM CST | Wind Advisory | ARX | 51 hr |
| Nov 18, 3:00 PM CST | Wind Advisory | ARX | 27 hr |
| Nov 20, 3:48 AM CST | Winter Weather Advisory | ARX | 23 hr |
| Nov 29, 2:42 PM CST | Winter Weather Advisory | ARX | 37 hr |
| Dec 12, 5:00 AM CST | Dense Fog Advisory | ARX | 7 hr |
| Dec 13, 3:08 AM CST | Areal Flood Advisory | ARX | 4 hr |
| Dec 13, 4:07 AM CST | Flood Watch | ARX | 32 hr |
| Dec 13, 10:23 AM CST | River Flood Warning | ARX | 3 days |
| Dec 13, 10:23 AM CST | River Flood Warning | ARX | 4 days |
| Dec 14, 9:30 AM CST | River Flood Warning | ARX | 25 hr |
| Dec 21, 4:30 AM CST | Dense Fog Advisory | ARX | 6 hr |
| Dec 21, 8:59 PM CST | Dense Fog Advisory | ARX | 7 hr |
| Dec 23, 4:24 PM CST | Special Weather Statement | ARX | 36 min |
| Dec 26, 3:25 PM CST | Winter Storm Watch | ARX | 24 hr |
| Dec 27, 3:17 PM CST | Winter Storm Warning | ARX | 39 hr |
| Dec 28, 12:13 PM CST | Mesoscale Discussion | SPC | 5 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 | 3 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 14 |
| Flooding | |
| River Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 3 |
| Winter Weather Advisory | 11 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 1 |
| 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 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.