Alert archive / Wisconsin / Clark County
Weather alerts in Clark County, Wisconsin, 2025
97 weather alerts in 2025, 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 2025. Tap one for its archive.
- Alerts
- 97
- Warnings
- 23
- Watches
- 13
- Advisories
- 36
- Busiest month
- March13 alerts
- Busiest day
- May 15, 20257 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 4 tornado warnings covering Clark County in 2025 had a tornado report inside them; 4 of 4 tornado reports fell inside a warning, on average 23 minutes after it went out.
Clark County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 2 | 50% | 4 | 100% | 23 min |
| Severe thunderstorm warnings | 9 | 4 | 56% | 5 | 100% | 12 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 20 | 4 | 80% | 20 | 40% | 14 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 133 | 60 | 55% | 194 | 77% | 22 min |
| NWS La Crosse, WI: flash flood warnings | 13 | 8 | 38% | 18 | 89% | 55 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 17, 1:42 PM CST | Cold Weather Advisory | ARX | 3 days |
| Jan 19, 1:55 PM CST | Extreme Cold Warning | ARX | 46 hr |
| Jan 21, 11:39 AM CST | Cold Weather Advisory | ARX | 10 hr |
| Feb 2, 2:41 AM CST | Winter Weather Advisory | ARX | 32 hr |
| Feb 5, 8:22 PM CST | Winter Weather Advisory | ARX | 7 hr |
| Feb 6, 3:16 AM CST | Wind Advisory | ARX | 15 hr |
| Feb 6, 3:37 AM CST | Winter Storm Watch | ARX | 33 hr |
| Feb 7, 3:00 AM CST | Winter Weather Advisory | ARX | 39 hr |
| Feb 8, 3:02 AM CST | Winter Storm Warning | ARX | 12 hr |
| Feb 13, 1:51 PM CST | Winter Weather Advisory | ARX | 50 hr |
| Feb 16, 3:11 AM CST | Cold Weather Advisory | ARX | 42 hr |
| Feb 16, 3:11 AM CST | Extreme Cold Watch | ARX | 24 hr |
| Feb 17, 3:25 AM CST | Extreme Cold Warning | ARX | 31 hr |
| Feb 18, 2:33 AM CST | Cold Weather Advisory | ARX | 33 hr |
| Feb 27, 1:17 PM CST | Wind Advisory | ARX | 29 hr |
| Mar 3, 3:21 AM CST | Winter Storm Watch | ARX | 24 hr |
| Mar 4, 3:20 AM CST | Winter Storm Warning | ARX | 33 hr |
| Mar 4, 3:20 AM CST | Winter Weather Advisory | ARX | 39 hr |
| Mar 17, 3:31 AM CDT | Winter Storm Watch | ARX | 35 hr |
| Mar 18, 2:16 PM CDT | Winter Storm Warning | ARX | 31 hr |
| Mar 19, 12:17 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 22, 1:57 PM CDT | Winter Weather Advisory | ARX | 35 hr |
| Mar 28, 2:41 AM CDT | Winter Storm Watch | ARX | 24 hr |
| Mar 28, 6:23 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 28, 6:56 PM CDT | Severe Thunderstorm Warning | ARX | 49 min |
| Mar 28, 7:44 PM CDT | Special Weather Statement | ARX | 46 min |
| Mar 28, 8:30 PM CDT | Special Weather Statement | ARX | 15 min |
| Mar 29, 2:43 AM CDT | Winter Weather Advisory | ARX | 40 hr |
| Apr 1, 3:11 AM CDT | Winter Weather Advisory | ARX | 31 hr |
| Apr 11, 3:09 AM CDT | Dense Fog Advisory | ARX | 6 hr |
| Apr 28, 3:39 AM CDT | Special Weather Statement | ARX | 66 min |
| Apr 28, 9:36 AM CDT | Special Weather Statement | ARX | 39 min |
| Apr 28, 3:07 PM CDT | Severe Thunderstorm Warning | ARX | 23 min |
| Apr 28, 6:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 28, 7:34 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 28, 8:03 PM CDT | Severe Thunderstorm Warning | ARX | 57 min |
| Apr 28, 8:05 PM CDT | Tornado Warning | ARX | 40 min |
| Apr 28, 8:26 PM CDT | Tornado Warning | ARX | 34 min |
| May 7, 12:43 PM CDT | Frost Advisory | ARX | 20 hr |
| May 8, 1:01 PM CDT | Frost Advisory | ARX | 19 hr |
| May 15, 12:46 PM CDT | Tornado Watch | SPC | 7 hr |
| May 15, 3:21 PM CDT | Wind Advisory | ARX | 6 hr |
| May 15, 4:12 PM CDT | Severe Thunderstorm Warning | ARX | 48 min |
| May 15, 4:30 PM CDT | Tornado Warning | ARX | 45 min |
| May 15, 4:44 PM CDT | Severe Thunderstorm Warning | ARX | 46 min |
| May 15, 4:57 PM CDT | Severe Thunderstorm Warning | ARX | 48 min |
| May 15, 5:06 PM CDT | Tornado Warning | ARX | 39 min |
| May 23, 11:41 AM CDT | Frost Advisory | ARX | 20 hr |
| Jun 20, 12:34 AM CDT | Severe Thunderstorm Warning | ARX | 56 min |
| Jun 20, 12:44 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 1:20 AM CDT | Special Weather Statement | ARX | 40 min |
| Jun 20, 2:51 AM CDT | Heat Advisory | ARX | 4 days |
| Jun 23, 1:15 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 25, 11:03 AM CDT | Flood Watch | ARX | 12 hr |
| Jun 30, 4:21 PM CDT | Special Weather Statement | ARX | 24 min |
| Jul 3, 2:18 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 9:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 10:35 PM CDT | Severe Thunderstorm Warning | ARX | 40 min |
| Jul 3, 10:56 PM CDT | Severe Thunderstorm Warning | ARX | 49 min |
| Jul 3, 11:04 PM CDT | Flash Flood Warning | ARX | 5 hr |
| Jul 4, 3:01 AM CDT | Heat Advisory | ARX | 17 hr |
| Jul 19, 6:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 22, 1:24 PM CDT | Heat Advisory | ARX | 31 hr |
| Jul 23, 2:47 PM CDT | Flood Watch | ARX | 10 hr |
| Jul 23, 2:47 PM CDT | Special Weather Statement | ARX | 58 min |
| Jul 23, 2:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 3:16 PM CDT | Special Weather Statement | ARX | 44 min |
| Jul 23, 3:57 PM CDT | Special Weather Statement | ARX | 33 min |
| Aug 9, 6:29 AM CDT | Special Weather Statement | ARX | 61 min |
| Aug 15, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 15, 5:27 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 15, 7:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 16, 7:20 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 16, 8:43 AM CDT | Special Weather Statement | ARX | 62 min |
| Sep 3, 2:03 PM CDT | Frost Advisory | ARX | 18 hr |
| Sep 11, 12:29 AM CDT | Dense Fog Advisory | ARX | 9 hr |
| Sep 19, 4:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 23, 2:01 AM CDT | Dense Fog Advisory | ARX | 7 hr |
| Oct 7, 2:46 AM CDT | Freeze Warning | ARX | 30 hr |
| Oct 8, 2:43 PM CDT | Frost Advisory | ARX | 18 hr |
| Nov 17, 2:06 PM CST | Winter Weather Advisory | ARX | 18 hr |
| Nov 18, 9:51 PM CST | Dense Fog Advisory | ARX | 11 hr |
| Nov 25, 2:46 AM CST | Winter Weather Advisory | ARX | 35 hr |
| Nov 27, 2:31 PM CST | Winter Storm Warning | ARX | 63 hr |
| Nov 28, 2:39 AM CST | Winter Weather Advisory | ARX | 57 hr |
| Dec 8, 3:03 AM CST | Winter Storm Watch | ARX | 19 hr |
| Dec 8, 9:50 PM CST | Winter Storm Warning | ARX | 32 hr |
| Dec 9, 7:12 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 11, 1:31 PM CST | Cold Weather Advisory | ARX | 68 hr |
| Dec 18, 11:22 AM CST | Winter Weather Advisory | ARX | 13 hr |
| Dec 22, 2:21 AM CST | Winter Weather Advisory | ARX | 8 hr |
| Dec 22, 3:32 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 25, 2:53 AM CST | Winter Weather Advisory | ARX | 30 hr |
| Dec 26, 4:44 PM CST | Dense Fog Advisory | ARX | 42 hr |
| Dec 27, 3:38 AM CST | Winter Storm Watch | ARX | 11 hr |
| Dec 27, 3:38 AM CST | Winter Weather Advisory | ARX | 56 hr |
| Dec 27, 2:17 PM CST | Winter Storm Warning | ARX | 40 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 | 9 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flood Watch | 2 |
| Winter | |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 15 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Extreme Cold Warning | 2 |
| Freeze Warning | 1 |
| Extreme Cold Watch | 1 |
| Cold Weather Advisory | 5 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.