Alert archive / Wisconsin / Vernon County
Weather alerts in Vernon County, Wisconsin, 2008
143 weather alerts in 2008, 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 2008. Tap one for its archive.
- Alerts
- 143
- Warnings
- 42
- Watches
- 31
- Advisories
- 35
- Busiest month
- July36 alerts
- Busiest day
- June 7, 200811 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 3 tornado warnings covering Vernon County in 2008 had a tornado report inside them; 0 of 2 tornado reports fell inside a warning.
Vernon County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 2 | 0% | |
| Severe thunderstorm warnings | 13 | 4 | 69% | 10 | 60% | 24 min |
| Flash flood warnings | 2 | 2 | 0% | 6 | 50% | 274 min |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 26 | 5 | 81% | 15 | 60% | 7 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 168 | 71 | 58% | 198 | 70% | 25 min |
| NWS La Crosse, WI: flash flood warnings | 34 | 13 | 62% | 53 | 57% | 133 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 5, 3:30 PM CST | Dense Fog Advisory | ARX | 45 hr |
| Jan 7, 2:22 PM CST | Dense Fog Advisory | ARX | 19 hr |
| Jan 15, 2:34 PM CST | Winter Storm Watch | ARX | 25 hr |
| Jan 16, 3:50 PM CST | Snow Advisory | ARX | 26 hr |
| Jan 18, 4:15 AM CST | Wind Chill Advisory | ARX | 38 hr |
| Jan 20, 3:35 PM CST | Snow Advisory | ARX | 32 hr |
| Jan 21, 3:25 PM CST | Heavy Snow Warning | ARX | 12 hr |
| Jan 28, 1:17 PM CST | Winter Storm Watch | ARX | 14 hr |
| Jan 29, 3:26 AM CST | Wind Chill Advisory | ARX | 23 hr |
| Jan 29, 3:26 AM CST | Winter Storm Warning | ARX | 17 hr |
| Jan 29, 10:34 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 29, 3:28 PM CST | Wind Chill Warning | ARX | 21 hr |
| Jan 29, 8:08 PM CST | Blowing Snow Advisory | ARX | 4 hr |
| Feb 3, 3:18 PM CST | Winter Weather Advisory | ARX | 27 hr |
| Feb 4, 6:14 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 5, 4:08 AM CST | Snow Advisory | ARX | 32 hr |
| Feb 8, 3:26 PM CST | Wind Chill Watch | ARX | 11 hr |
| Feb 8, 3:26 PM CST | Winter Weather Advisory | ARX | 33 hr |
| Feb 9, 2:32 AM CST | Wind Chill Warning | ARX | 33 hr |
| Feb 10, 11:44 AM CST | Wind Chill Advisory | ARX | 6 hr |
| Feb 11, 2:52 AM CST | Snow Advisory | ARX | 33 hr |
| Feb 12, 3:30 PM CST | Winter Storm Watch | ARX | 21 hr |
| Feb 13, 12:18 PM CST | Heavy Snow Warning | ARX | 30 hr |
| Feb 13, 12:18 PM CST | Snow Advisory | ARX | 30 hr |
| Feb 15, 11:43 AM CST | Winter Storm Watch | ARX | 28 hr |
| Feb 16, 3:39 PM CST | Winter Storm Warning | ARX | 25 hr |
| Feb 17, 5:02 AM CST | Blizzard Warning | ARX | 11 hr |
| Feb 17, 7:01 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 17, 12:13 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 17, 4:11 PM CST | Winter Storm Warning | ARX | 3 hr |
| Feb 19, 3:49 AM CST | Wind Chill Advisory | ARX | 32 hr |
| Feb 29, 12:41 AM CST | Winter Weather Advisory | ARX | 5 hr |
| Mar 2, 3:31 PM CST | Winter Weather Advisory | ARX | 12 hr |
| Mar 18, 7:09 AM CDT | Dense Fog Advisory | ARX | 6 hr |
| Mar 19, 3:23 PM CDT | Winter Storm Watch | ARX | 24 hr |
| Mar 20, 3:34 PM CDT | Winter Storm Warning | ARX | 30 hr |
| Mar 21, 4:37 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 25, 3:27 PM CDT | Winter Storm Watch | ARX | 24 hr |
| Mar 30, 3:53 AM CDT | Flood Watch | ARX | 41 hr |
| Apr 16, 5:35 AM CDT | Wind Advisory | ARX | 9 hr |
| Apr 24, 9:00 PM CDT | Flood Watch | ARX | 21 hr |
| Apr 25, 2:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 25, 2:41 PM CDT | Tornado Watch | SPC | 5 hr |
| May 2, 11:05 AM CDT | Mesoscale Discussion | SPC | 115 min |
| May 2, 3:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 2, 4:10 PM CDT | Tornado Warning | ARX | 23 min |
| May 2, 4:31 PM CDT | Tornado Watch | SPC | 3 hr |
| May 6, 8:51 PM CDT | Severe Thunderstorm Warning | ARX | 24 min |
| May 6, 9:17 PM CDT | Severe Thunderstorm Warning | ARX | 14 min |
| May 25, 2:04 PM CDT | Tornado Watch | SPC | 6 hr |
| May 25, 7:12 PM CDT | Tornado Watch | SPC | 4 hr |
| May 30, 4:58 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 30, 6:26 PM CDT | Severe Thunderstorm Warning | ARX | 34 min |
| May 30, 7:00 PM CDT | Severe Thunderstorm Warning | ARX | 45 min |
| Jun 5, 1:38 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 5, 9:14 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 6, 3:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 7, 4:02 AM CDT | Flash Flood Watch | ARX | 44 hr |
| Jun 7, 10:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 7, 12:17 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 7, 12:33 PM CDT | Tornado Warning | ARX | 42 min |
| Jun 7, 3:51 PM CDT | River Flood Warning | ARX | 46 hr |
| Jun 7, 5:19 PM CDT | Flash Flood Warning | ARX | 7 hr |
| Jun 7, 5:59 PM CDT | Tornado Warning | ARX | 61 min |
| Jun 7, 6:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 7, 6:35 PM CDT | River Flood Warning | ARX | 26 hr |
| Jun 7, 6:46 PM CDT | Severe Thunderstorm Warning | ARX | 44 min |
| Jun 7, 6:55 PM CDT | River Flood Warning | ARX | 67 hr |
| Jun 7, 8:20 PM CDT | River Flood Warning | ARX | 5 days |
| Jun 7, 8:20 PM CDT | River Flood Warning | ARX | 5 days |
| Jun 7, 8:20 PM CDT | River Flood Warning | ARX | 7 days |
| Jun 8, 12:06 AM CDT | Areal Flood Warning | ARX | 8 hr |
| Jun 8, 2:29 AM CDT | Mesoscale Discussion | SPC | 31 min |
| Jun 8, 3:24 AM CDT | Flash Flood Warning | ARX | 5 hr |
| Jun 8, 8:26 AM CDT | Areal Flood Warning | ARX | 6 hr |
| Jun 8, 2:27 PM CDT | Areal Flood Warning | ARX | 34 hr |
| Jun 8, 9:27 PM CDT | River Flood Warning | ARX | 25 hr |
| Jun 10, 12:25 AM CDT | Areal Flood Warning | ARX | 10 hr |
| Jun 10, 2:45 PM CDT | Flash Flood Watch | ARX | 58 hr |
| Jun 10, 9:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 12, 3:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 28, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 28, 12:59 PM CDT | Severe Thunderstorm Warning | ARX | 61 min |
| Jul 2, 8:26 AM CDT | Severe Thunderstorm Warning | ARX | 35 min |
| Jul 2, 1:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 6, 5:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 6:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 7, 1:51 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 3:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 7, 4:18 PM CDT | Severe Thunderstorm Warning | ARX | 57 min |
| Jul 7, 4:48 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Jul 7, 5:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 10, 9:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 10, 12:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 10, 1:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 10, 3:16 PM CDT | Severe Thunderstorm Warning | ARX | 59 min |
| Jul 10, 3:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 10, 11:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 11, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 11, 11:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 12, 1:52 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 13, 11:31 AM CDT | River Flood Warning | ARX | 22 hr |
| Jul 15, 5:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 16, 9:29 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 3:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 16, 4:23 PM CDT | Severe Thunderstorm Warning | ARX | 37 min |
| Jul 16, 5:41 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Jul 17, 10:57 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 11:30 AM CDT | Flash Flood Watch | ARX | 9 hr |
| Jul 17, 2:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 19, 5:22 PM CDT | Tornado Watch | SPC | 5 hr |
| Jul 19, 6:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 25, 6:09 PM CDT | Severe Thunderstorm Warning | ARX | 36 min |
| Jul 25, 6:29 PM CDT | Severe Thunderstorm Warning | ARX | 19 min |
| Jul 25, 6:44 PM CDT | Severe Thunderstorm Warning | ARX | 61 min |
| Jul 25, 8:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 31, 6:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 31, 7:18 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 1:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 3, 3:48 AM CDT | Frost Advisory | ARX | 29 hr |
| Oct 18, 2:30 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| Oct 25, 2:08 PM CDT | Wind Advisory | ARX | 30 hr |
| Nov 2, 9:48 PM CST | Dense Fog Advisory | ARX | 11 hr |
| Nov 12, 7:29 PM CST | Dense Fog Advisory | ARX | 4 hr |
| Nov 30, 3:40 AM CST | Winter Weather Advisory | ARX | 20 hr |
| Dec 2, 3:15 PM CST | Winter Weather Advisory | ARX | 22 hr |
| Dec 7, 4:13 AM CST | Winter Storm Watch | ARX | 25 hr |
| Dec 8, 4:55 AM CST | Winter Storm Warning | ARX | 33 hr |
| Dec 14, 3:12 AM CST | Wind Chill Advisory | ARX | 48 hr |
| Dec 15, 3:07 PM CST | Winter Weather Advisory | ARX | 32 hr |
| Dec 17, 3:34 AM CST | Winter Storm Watch | ARX | 25 hr |
| Dec 17, 3:48 PM CST | Winter Storm Warning | ARX | 44 hr |
| Dec 18, 11:38 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 19, 12:09 PM CST | Winter Storm Watch | ARX | 15 hr |
| Dec 20, 3:19 AM CST | Winter Storm Warning | ARX | 39 hr |
| Dec 21, 3:46 PM CST | Wind Chill Advisory | ARX | 19 hr |
| Dec 22, 3:45 AM CST | Winter Weather Advisory | ARX | 32 hr |
| Dec 23, 3:04 PM CST | Winter Weather Advisory | ARX | 24 hr |
| Dec 25, 3:55 AM CST | Winter Weather Advisory | ARX | 35 hr |
| Dec 26, 11:20 AM CST | Dense Fog Advisory | ARX | 15 hr |
| Dec 27, 3:51 AM CST | Winter Weather Advisory | ARX | 23 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.