Alert archive / Wisconsin / Clark County
Weather alerts in Clark County, Wisconsin, 2023
83 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Clark County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 83
- Warnings
- 17
- Watches
- 14
- Advisories
- 21
- Busiest month
- July21 alerts
- Busiest day
- July 28, 20236 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Clark County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 4 | 43% | 6 | 83% | 28 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| NWS La Crosse, WI: severe thunderstorm warnings | 76 | 49 | 36% | 160 | 78% | 23 min |
| NWS La Crosse, WI: flash flood warnings | 2 | 1 | 50% | 1 | 100% | 152 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 2, 3:37 AM CST | Winter Weather Advisory | ARX | 38 hr |
| Jan 10, 2:45 PM CST | Winter Weather Advisory | ARX | 20 hr |
| Jan 17, 2:35 AM CST | Winter Storm Watch | ARX | 25 hr |
| Jan 18, 3:18 AM CST | Winter Storm Warning | ARX | 34 hr |
| Jan 29, 2:18 PM CST | Wind Chill Advisory | ARX | 20 hr |
| Jan 30, 1:52 PM CST | Wind Chill Advisory | ARX | 20 hr |
| Feb 2, 2:53 AM CST | Wind Chill Advisory | ARX | 32 hr |
| Feb 19, 2:14 PM CST | Winter Storm Watch | ARX | 48 hr |
| Feb 20, 9:32 PM CST | Winter Weather Advisory | ARX | 32 hr |
| Feb 21, 2:57 AM CST | Winter Storm Warning | ARX | 57 hr |
| Feb 23, 5:06 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 25, 2:37 PM CST | Winter Storm Watch | ARX | 14 hr |
| Feb 26, 4:13 AM CST | Winter Storm Warning | ARX | 38 hr |
| Mar 5, 3:38 AM CST | Winter Weather Advisory | ARX | 35 hr |
| Mar 8, 2:22 PM CST | Winter Weather Advisory | ARX | 40 hr |
| Mar 10, 2:44 PM CST | Winter Weather Advisory | ARX | 57 hr |
| Mar 30, 3:30 AM CDT | Winter Storm Watch | ARX | 24 hr |
| Mar 31, 3:33 AM CDT | Winter Storm Warning | ARX | 27 hr |
| Apr 4, 8:23 PM CDT | Special Weather Statement | ARX | 37 min |
| Apr 11, 2:20 PM CDT | Fire Weather Watch | ARX | 12 hr |
| Apr 12, 2:43 AM CDT | Red Flag Warning | ARX | 17 hr |
| Apr 12, 2:32 PM CDT | Fire Weather Watch | ARX | 11 hr |
| Apr 13, 1:46 AM CDT | Red Flag Warning | ARX | 18 hr |
| Apr 13, 2:02 PM CDT | Fire Weather Watch | ARX | 12 hr |
| Apr 14, 1:54 AM CDT | Red Flag Warning | ARX | 18 hr |
| Apr 15, 3:22 AM CDT | Winter Storm Watch | ARX | 24 hr |
| Apr 16, 3:39 AM CDT | Winter Storm Warning | ARX | 33 hr |
| Apr 16, 10:45 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 17, 4:48 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 6, 7:47 PM CDT | Special Weather Statement | ARX | 58 min |
| May 18, 2:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 10, 4:01 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Jun 28, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 9:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 28, 11:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 4, 11:38 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 3:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 7:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 14, 5:47 PM CDT | Special Weather Statement | ARX | 43 min |
| Jul 14, 5:56 PM CDT | Severe Thunderstorm Warning | ARX | 49 min |
| Jul 14, 6:29 PM CDT | Severe Thunderstorm Warning | ARX | 48 min |
| Jul 19, 6:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 19, 8:50 PM CDT | Special Weather Statement | ARX | 40 min |
| Jul 19, 11:58 PM CDT | Severe Thunderstorm Warning | ARX | 20 min |
| Jul 22, 3:51 PM CDT | Special Weather Statement | ARX | 54 min |
| Jul 23, 1:28 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| Jul 26, 2:04 PM CDT | Heat Advisory | ARX | 30 hr |
| Jul 27, 4:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 27, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 27, 7:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 27, 7:28 PM CDT | Severe Thunderstorm Warning | ARX | 77 min |
| Jul 27, 9:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 27, 9:33 PM CDT | Flood Watch | ARX | 3 hr |
| Jul 28, 4:04 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 28, 6:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 3, 6:01 PM CDT | Special Weather Statement | ARX | 29 min |
| Aug 3, 7:13 PM CDT | Special Weather Statement | ARX | 32 min |
| Aug 9, 1:12 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 2:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 11, 6:09 PM CDT | Special Weather Statement | ARX | 36 min |
| Aug 11, 6:15 PM CDT | Severe Thunderstorm Warning | ARX | 60 min |
| Aug 11, 6:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 11, 6:48 PM CDT | Severe Thunderstorm Warning | ARX | 29 min |
| Aug 16, 9:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 16, 11:29 PM CDT | Severe Thunderstorm Warning | ARX | 46 min |
| Aug 20, 2:12 PM CDT | Excessive Heat Warning | ARX | 4 days |
| Aug 21, 3:31 AM CDT | Heat Advisory | ARX | 41 hr |
| Sep 5, 8:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 15, 9:36 PM CDT | Dense Fog Advisory | ARX | 11 hr |
| Oct 8, 1:42 PM CDT | Frost Advisory | ARX | 19 hr |
| Oct 24, 2:42 AM CDT | Special Weather Statement | ARX | 63 min |
| Oct 24, 8:49 AM CDT | Special Weather Statement | ARX | 56 min |
| Oct 24, 9:32 AM CDT | Special Weather Statement | ARX | 58 min |
| Oct 24, 10:06 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 24, 11:43 AM CDT | Special Weather Statement | ARX | 62 min |
| Oct 24, 5:01 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Oct 24, 7:08 PM CDT | Areal Flood Advisory | ARX | 5 hr |
| Oct 24, 11:39 PM CDT | Areal Flood Warning | ARX | 34 hr |
| Nov 15, 2:10 PM CST | Wind Advisory | ARX | 29 hr |
| Dec 22, 3:00 PM CST | Dense Fog Advisory | ARX | 22 hr |
| Dec 23, 2:26 PM CST | Dense Fog Advisory | ARX | 21 hr |
| Dec 30, 5:27 PM CST | Winter Weather Advisory | ARX | 16 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 | 7 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 19 |
| Special Weather Statement | 12 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 2 |
| Cold | |
| Frost Advisory | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.