Alert archive / Wisconsin / La Crosse County
Weather alerts in La Crosse County, Wisconsin, 2023
85 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
La Crosse County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 85
- Warnings
- 22
- Watches
- 17
- Advisories
- 19
- Busiest month
- April20 alerts
- Busiest day
- July 26, 20234 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
La Crosse County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 7 | 0% | 43 | 86% | 21 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 16, 6:29 PM CST | Dense Fog Advisory | ARX | 6 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 7, 2:25 PM CST | Winter Storm Watch | ARX | 24 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 |
| Mar 7, 2:47 PM CST | Winter Storm Watch | ARX | 24 hr |
| Mar 8, 2:22 PM CST | Winter Storm Warning | ARX | 40 hr |
| Mar 30, 10:17 AM CDT | River Flood Watch | ARX | 3 days |
| Mar 31, 3:33 AM CDT | Winter Weather Advisory | ARX | 27 hr |
| Mar 31, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 5:39 PM CDT | Severe Thunderstorm Warning | ARX | 21 min |
| Apr 2, 10:59 AM CDT | River Flood Warning | ARX | 6 days |
| Apr 4, 2:54 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 4, 5:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 4, 6:34 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 4, 8:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 4, 10:59 PM CDT | Mesoscale Discussion | SPC | 91 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, 11:28 AM CDT | River Flood Watch | ARX | 48 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 14, 11:18 AM CDT | River Flood Warning | ARX | 24 days |
| 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, 3:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 16, 10:45 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 17, 4:48 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 1:09 PM CDT | River Flood Warning | ARX | 6 days |
| May 7, 2:52 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| May 18, 2:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 18, 4:37 PM CDT | Special Weather Statement | ARX | 23 min |
| Jul 3, 11:33 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Jul 10, 9:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 10, 10:06 PM CDT | Severe Thunderstorm Warning | ARX | 24 min |
| Jul 10, 10:28 PM CDT | Special Weather Statement | ARX | 32 min |
| Jul 14, 12:15 AM CDT | Severe Thunderstorm Warning | ARX | 58 min |
| Jul 22, 4:33 PM CDT | Special Weather Statement | ARX | 57 min |
| Jul 22, 5:09 PM CDT | Special Weather Statement | ARX | 66 min |
| Jul 22, 5:29 PM CDT | Special Weather Statement | ARX | 61 min |
| Jul 26, 1:31 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 26, 4:03 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 26, 7:53 AM CDT | Special Weather Statement | ARX | 67 min |
| Jul 26, 2:04 PM CDT | Heat Advisory | ARX | 30 hr |
| Jul 27, 11:19 PM CDT | Special Weather Statement | ARX | 56 min |
| Jul 28, 4:04 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 28, 6:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 28, 7:21 PM CDT | Severe Thunderstorm Warning | ARX | 54 min |
| Jul 28, 7:41 PM CDT | Severe Thunderstorm Warning | ARX | 49 min |
| Aug 9, 1:12 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 1:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 2:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 11, 4:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 6:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 11, 7:39 PM CDT | Severe Thunderstorm Warning | ARX | 21 min |
| Aug 11, 7:54 PM CDT | Severe Thunderstorm Warning | ARX | 51 min |
| Aug 20, 2:48 AM CDT | Excessive Heat Watch | ARX | 3 days |
| Aug 20, 2:12 PM CDT | Excessive Heat Warning | ARX | 4 days |
| Aug 21, 1:52 PM CDT | Heat Advisory | ARX | 3 days |
| Sep 2, 11:50 AM CDT | Heat Advisory | ARX | 3 days |
| Sep 2, 2:14 PM CDT | Fire Weather Watch | ARX | 13 hr |
| Sep 3, 3:27 AM CDT | Red Flag Warning | ARX | 16 hr |
| Sep 5, 8:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 15, 9:36 PM CDT | Dense Fog Advisory | ARX | 11 hr |
| Sep 16, 2:58 PM CDT | Special Weather Statement | ARX | 32 min |
| Sep 16, 4:34 PM CDT | Areal Flood Advisory | ARX | 3 hr |
| Sep 25, 6:57 PM CDT | Areal Flood Advisory | ARX | 87 min |
| Oct 8, 1:42 PM CDT | Frost Advisory | ARX | 19 hr |
| Oct 9, 2:19 PM CDT | Frost Advisory | ARX | 19 hr |
| Oct 10, 1:47 PM CDT | Frost Advisory | ARX | 19 hr |
| Oct 24, 10:06 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 24, 11:02 AM CDT | River Flood Watch | ARX | 22 hr |
| Oct 24, 5:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 25, 9:12 AM CDT | River Flood Warning | ARX | 5 days |
| Oct 27, 2:49 AM CDT | Freeze Warning | ARX | 29 hr |
| Oct 29, 3:41 AM CDT | Freeze Warning | ARX | 28 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.
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.