Alert archive / Wisconsin / La Crosse County
Weather alerts in La Crosse County, Wisconsin, 2019
150 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 150
- Warnings
- 33
- Watches
- 23
- Advisories
- 44
- Busiest month
- July33 alerts
- Busiest day
- July 20, 20199 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering La Crosse County in 2019 had a tornado report inside them.
La Crosse County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 0 | ||
| Severe thunderstorm warnings | 9 | 7 | 22% | 11 | 55% | 24 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 24 | 5 | 79% | 27 | 48% | 15 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 122 | 72 | 41% | 209 | 83% | 23 min |
| NWS La Crosse, WI: flash flood warnings | 30 | 17 | 43% | 54 | 81% | 117 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 7, 2:33 PM CST | Wind Advisory | ARX | 30 hr |
| Jan 14, 11:45 AM CST | Winter Weather Advisory | ARX | 21 hr |
| Jan 15, 11:45 AM CST | Winter Weather Advisory | ARX | 9 hr |
| Jan 17, 2:23 PM CST | Winter Weather Advisory | ARX | 40 hr |
| Jan 21, 3:23 AM CST | Winter Storm Watch | ARX | 12 hr |
| Jan 21, 3:01 PM CST | Winter Storm Warning | ARX | 45 hr |
| Jan 21, 3:01 PM CST | Winter Weather Advisory | ARX | 45 hr |
| Jan 22, 10:45 AM CST | Winter Storm Warning | ARX | 59 min |
| Jan 24, 3:18 AM CST | Wind Chill Advisory | ARX | 33 hr |
| Jan 26, 3:36 AM CST | Winter Storm Watch | ARX | 12 hr |
| Jan 26, 3:10 PM CST | Winter Storm Warning | ARX | 48 hr |
| Jan 27, 3:42 AM CST | Wind Chill Watch | ARX | 25 hr |
| Jan 27, 7:04 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 28, 4:27 AM CST | Wind Chill Warning | ARX | 3 days |
| Jan 28, 4:27 AM CST | Wind Chill Advisory | ARX | 32 hr |
| Feb 2, 9:28 AM CST | Dense Fog Advisory | ARX | 43 hr |
| Feb 4, 4:47 AM CST | Winter Weather Advisory | ARX | 9 hr |
| Feb 5, 2:45 AM CST | Winter Weather Advisory | ARX | 21 hr |
| Feb 6, 3:12 AM CST | Winter Weather Advisory | ARX | 45 hr |
| Feb 6, 3:29 PM CST | Winter Storm Warning | ARX | 33 hr |
| Feb 7, 2:09 PM CST | Wind Chill Advisory | ARX | 22 hr |
| Feb 8, 11:58 AM CST | Wind Chill Advisory | ARX | 21 hr |
| Feb 9, 2:45 PM CST | Winter Weather Advisory | ARX | 30 hr |
| Feb 10, 3:00 PM CST | Winter Storm Watch | ARX | 13 hr |
| Feb 11, 3:30 AM CST | Winter Storm Warning | ARX | 45 hr |
| Feb 15, 3:16 PM CST | Winter Weather Advisory | ARX | 57 hr |
| Feb 19, 3:35 AM CST | Winter Weather Advisory | ARX | 38 hr |
| Feb 21, 2:35 PM CST | Winter Storm Watch | ARX | 36 hr |
| Feb 22, 4:06 AM CST | Winter Weather Advisory | ARX | 32 hr |
| Feb 23, 2:56 AM CST | Winter Storm Warning | ARX | 42 hr |
| Feb 23, 2:56 AM CST | Winter Weather Advisory | ARX | 42 hr |
| Feb 24, 9:15 PM CST | Wind Chill Advisory | ARX | 12 hr |
| Mar 1, 10:17 AM CST | Winter Weather Advisory | ARX | 14 hr |
| Mar 3, 10:13 AM CST | Wind Chill Advisory | ARX | 26 hr |
| Mar 8, 3:28 PM CST | Winter Weather Advisory | ARX | 44 hr |
| Mar 9, 5:59 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 11, 2:58 PM CDT | Flood Watch | ARX | 4 days |
| Mar 13, 7:48 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| Mar 15, 6:56 AM CDT | Areal Flood Warning | ARX | 12 hr |
| Mar 15, 6:18 PM CDT | Areal Flood Warning | ARX | 42 hr |
| Mar 16, 9:22 PM CDT | River Flood Warning | ARX | 4 days |
| Mar 18, 12:56 AM CDT | River Flood Warning | ARX | 4 days |
| Mar 23, 10:03 AM CDT | River Flood Warning | ARX | 44 days |
| Mar 25, 5:05 PM CDT | River Flood Warning | ARX | 62 hr |
| Apr 2, 4:32 PM CDT | Special Weather Statement | ARX | 58 min |
| Apr 10, 3:53 AM CDT | Winter Weather Advisory | ARX | 39 hr |
| Apr 10, 10:53 PM CDT | Special Weather Statement | ARX | 22 min |
| Apr 17, 9:29 PM CDT | River Flood Warning | ARX | 5 days |
| Apr 26, 4:02 AM CDT | Winter Storm Watch | ARX | 11 hr |
| Apr 26, 3:05 PM CDT | Winter Weather Advisory | ARX | 24 hr |
| Apr 27, 7:05 PM CDT | Freeze Warning | ARX | 14 hr |
| May 5, 2:46 PM CDT | Special Weather Statement | ARX | 59 min |
| May 21, 9:56 AM CDT | River Flood Warning | ARX | 21 days |
| May 24, 7:49 PM CDT | Tornado Watch | SPC | 3 hr |
| May 24, 8:46 PM CDT | Tornado Warning | ARX | 29 min |
| May 24, 9:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 1, 5:29 AM CDT | Special Weather Statement | ARX | 46 min |
| Jun 4, 7:42 AM CDT | Special Weather Statement | ARX | 93 min |
| Jun 4, 4:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 4:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 4, 7:10 PM CDT | Severe Thunderstorm Warning | ARX | 65 min |
| Jun 4, 7:15 PM CDT | Special Weather Statement | ARX | 75 min |
| Jun 4, 7:26 PM CDT | Severe Thunderstorm Warning | ARX | 49 min |
| Jun 4, 7:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 11:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 27, 12:12 PM CDT | Special Weather Statement | ARX | 93 min |
| Jun 27, 12:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 27, 1:17 PM CDT | Special Weather Statement | ARX | 118 min |
| Jun 27, 1:37 PM CDT | Severe Thunderstorm Warning | ARX | 53 min |
| Jun 27, 1:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 27, 10:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 12:09 AM CDT | Severe Thunderstorm Warning | ARX | 51 min |
| Jun 28, 3:21 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 4:22 AM CDT | Areal Flood Advisory | ARX | 113 min |
| Jun 30, 5:11 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 7:49 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 30, 9:05 AM CDT | Special Weather Statement | ARX | 55 min |
| Jun 30, 9:39 AM CDT | Special Weather Statement | ARX | 66 min |
| Jul 1, 12:59 AM CDT | Flash Flood Watch | ARX | 8 hr |
| Jul 1, 1:55 AM CDT | Special Weather Statement | ARX | 65 min |
| Jul 1, 1:42 PM CDT | Flash Flood Watch | ARX | 8 hr |
| Jul 1, 5:55 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 6:09 PM CDT | Special Weather Statement | ARX | 66 min |
| Jul 3, 5:53 PM CDT | Special Weather Statement | ARX | 52 min |
| Jul 4, 6:09 PM CDT | Special Weather Statement | ARX | 36 min |
| Jul 9, 5:37 PM CDT | Special Weather Statement | ARX | 38 min |
| Jul 15, 7:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 17, 3:23 AM CDT | Flash Flood Watch | ARX | 28 hr |
| Jul 17, 12:34 PM CDT | Excessive Heat Warning | ARX | 3 days |
| Jul 17, 12:34 PM CDT | Heat Advisory | ARX | 39 hr |
| Jul 17, 10:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 7:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 18, 10:36 PM CDT | Special Weather Statement | ARX | 54 min |
| Jul 18, 10:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 11:12 PM CDT | Severe Thunderstorm Warning | ARX | 48 min |
| Jul 18, 11:14 PM CDT | Areal Flood Advisory | ARX | 2 hr |
| Jul 19, 2:30 AM CDT | Flash Flood Warning | ARX | 4 hr |
| Jul 19, 6:26 AM CDT | Areal Flood Warning | ARX | 6 hr |
| Jul 20, 7:20 AM CDT | Flash Flood Watch | ARX | 7 hr |
| Jul 20, 8:45 AM CDT | Severe Thunderstorm Warning | ARX | 45 min |
| Jul 20, 9:02 AM CDT | Tornado Warning | ARX | 28 min |
| Jul 20, 9:05 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 20, 9:22 AM CDT | Severe Thunderstorm Warning | ARX | 68 min |
| Jul 20, 9:25 AM CDT | Tornado Warning | ARX | 35 min |
| Jul 20, 9:34 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 20, 9:51 AM CDT | Severe Thunderstorm Warning | ARX | 39 min |
| Jul 20, 12:10 PM CDT | Severe Thunderstorm Warning | ARX | 80 min |
| Jul 23, 4:03 AM CDT | River Flood Warning | ARX | 41 hr |
| Jul 27, 12:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 28, 2:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 28, 5:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 5, 1:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 5, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 5, 6:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 3:25 AM CDT | Dense Fog Advisory | ARX | 6 hr |
| Aug 20, 11:05 AM CDT | Special Weather Statement | ARX | 115 min |
| Sep 2, 6:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 2, 11:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 11, 6:53 AM CDT | Special Weather Statement | ARX | 37 min |
| Sep 11, 7:26 AM CDT | Special Weather Statement | ARX | 64 min |
| Sep 12, 2:12 AM CDT | Flash Flood Watch | ARX | 22 hr |
| Sep 12, 1:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 2:19 PM CDT | Tornado Watch | SPC | 6 hr |
| Sep 12, 3:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 12, 5:14 PM CDT | Special Weather Statement | ARX | 61 min |
| Sep 15, 8:25 PM CDT | Dense Fog Advisory | ARX | 14 hr |
| Sep 20, 12:33 AM CDT | Dense Fog Advisory | ARX | 9 hr |
| Sep 24, 3:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 24, 7:17 PM CDT | Tornado Watch | SPC | 4 hr |
| Sep 24, 9:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 24, 10:04 PM CDT | Special Weather Statement | ARX | 56 min |
| Sep 24, 10:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Sep 30, 2:49 PM CDT | Flash Flood Watch | ARX | 38 hr |
| Oct 10, 2:20 PM CDT | Freeze Watch | ARX | 13 hr |
| Oct 11, 3:22 AM CDT | Freeze Warning | ARX | 30 hr |
| Oct 19, 11:57 PM CDT | Dense Fog Advisory | ARX | 11 hr |
| Oct 21, 11:01 AM CDT | Wind Advisory | ARX | 31 hr |
| Oct 28, 2:51 PM CDT | Winter Weather Advisory | ARX | 12 hr |
| Nov 5, 2:22 AM CST | Winter Weather Advisory | ARX | 32 hr |
| Nov 17, 4:58 PM CST | Special Weather Statement | ARX | 3 hr |
| Nov 19, 6:15 PM CST | Dense Fog Advisory | ARX | 17 hr |
| Nov 25, 2:57 PM CST | Winter Weather Advisory | ARX | 51 hr |
| Nov 26, 9:42 AM CST | Wind Advisory | ARX | 32 hr |
| Nov 29, 12:43 PM CST | Winter Weather Advisory | ARX | 53 hr |
| Dec 8, 2:24 PM CST | Winter Weather Advisory | ARX | 28 hr |
| Dec 9, 11:18 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 2:54 PM CST | Dense Fog Advisory | ARX | 21 hr |
| Dec 25, 2:38 PM CST | Dense Fog Advisory | ARX | 18 hr |
| Dec 27, 7:22 PM CST | Winter Weather Advisory | ARX | 26 hr |
| Dec 29, 3:54 AM CST | Winter Weather Advisory | ARX | 44 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 archive20182020
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.