Alert archive / Wisconsin / Clark County
Weather alerts in Clark County, Wisconsin, 2013
127 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 127
- Warnings
- 18
- Watches
- 22
- Advisories
- 53
- Busiest month
- May24 alerts
- Busiest day
- May 30, 20139 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 Clark County in 2013 had a tornado report inside them.
Clark County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 9 | 3 | 67% | 8 | 38% | 29 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 21 | 0 | 100% | 6 | 0% | |
| NWS La Crosse, WI: severe thunderstorm warnings | 123 | 66 | 46% | 194 | 67% | 23 min |
| NWS La Crosse, WI: flash flood warnings | 39 | 28 | 28% | 113 | 82% | 109 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 10, 2:38 PM CST | Dense Fog Advisory | ARX | 33 hr |
| Jan 10, 6:23 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 10, 7:52 PM CST | Freezing Rain Advisory | ARX | 7 hr |
| Jan 18, 2:37 PM CST | Wind Advisory | ARX | 33 hr |
| Jan 19, 4:00 AM CST | Wind Chill Advisory | ARX | 29 hr |
| Jan 20, 3:36 AM CST | Wind Chill Advisory | ARX | 56 hr |
| Jan 23, 3:28 AM CST | Wind Chill Advisory | ARX | 27 hr |
| Jan 24, 3:46 AM CST | Winter Weather Advisory | ARX | 25 hr |
| Jan 26, 4:05 AM CST | Winter Storm Watch | ARX | 11 hr |
| Jan 26, 3:19 PM CST | Winter Storm Warning | ARX | 31 hr |
| Jan 27, 9:54 PM CST | Winter Weather Advisory | ARX | 5 hr |
| Jan 28, 3:37 PM CST | Freezing Rain Advisory | ARX | 17 hr |
| Jan 29, 4:38 AM CST | Winter Storm Watch | ARX | 9 hr |
| Jan 29, 1:29 PM CST | Winter Weather Advisory | ARX | 28 hr |
| Jan 30, 4:20 AM CST | Wind Chill Advisory | ARX | 56 hr |
| Feb 6, 12:01 PM CST | Winter Weather Advisory | ARX | 36 hr |
| Feb 9, 3:06 PM CST | Winter Weather Advisory | ARX | 27 hr |
| Feb 13, 2:22 PM CST | Winter Weather Advisory | ARX | 19 hr |
| Feb 19, 3:18 PM CST | Wind Chill Advisory | ARX | 18 hr |
| Feb 20, 1:46 PM CST | Winter Weather Advisory | ARX | 52 hr |
| Mar 3, 12:30 PM CST | Winter Storm Watch | ARX | 15 hr |
| Mar 3, 12:30 PM CST | Winter Storm Warning | ARX | 54 hr |
| Mar 8, 3:09 PM CST | Winter Weather Advisory | ARX | 19 hr |
| Mar 9, 2:45 PM CST | Winter Storm Watch | ARX | 12 hr |
| Mar 9, 9:31 PM CST | Dense Fog Advisory | ARX | 11 hr |
| Mar 10, 4:08 AM CDT | Winter Storm Warning | ARX | 32 hr |
| Mar 10, 7:24 PM CDT | Mesoscale Discussion | SPC | 5 hr |
| Mar 14, 3:44 PM CDT | Winter Weather Advisory | ARX | 33 hr |
| Mar 17, 3:45 AM CDT | Winter Weather Advisory | ARX | 54 hr |
| Mar 31, 12:42 AM CDT | Dense Fog Advisory | ARX | 9 hr |
| Apr 8, 3:19 PM CDT | Flood Watch | ARX | 61 hr |
| Apr 9, 4:13 AM CDT | Winter Weather Advisory | ARX | 27 hr |
| Apr 10, 2:20 AM CDT | Areal Flood Advisory | ARX | 6 hr |
| Apr 10, 5:25 AM CDT | Winter Storm Warning | ARX | 32 hr |
| Apr 11, 3:12 PM CDT | Winter Weather Advisory | ARX | 21 hr |
| Apr 13, 2:39 PM CDT | Winter Weather Advisory | ARX | 34 hr |
| Apr 16, 11:25 AM CDT | Flood Watch | ARX | 47 hr |
| May 1, 3:24 PM CDT | Winter Weather Advisory | ARX | 45 hr |
| May 11, 3:45 AM CDT | Freeze Watch | ARX | 24 hr |
| May 12, 3:48 AM CDT | Freeze Warning | ARX | 27 hr |
| May 19, 5:25 PM CDT | Tornado Watch | SPC | 5 hr |
| May 19, 6:29 PM CDT | Severe Thunderstorm Warning | ARX | 76 min |
| May 19, 8:10 PM CDT | Tornado Watch | SPC | 6 hr |
| May 19, 10:42 PM CDT | Severe Thunderstorm Warning | ARX | 63 min |
| May 19, 10:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 23, 3:18 AM CDT | Frost Advisory | ARX | 28 hr |
| May 29, 2:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 29, 2:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 29, 4:40 PM CDT | Severe Thunderstorm Warning | ARX | 65 min |
| May 29, 5:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 29, 7:02 PM CDT | Flash Flood Warning | ARX | 8 hr |
| May 30, 11:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| May 30, 11:56 AM CDT | Tornado Watch | SPC | 7 hr |
| May 30, 1:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 30, 1:36 PM CDT | Tornado Warning | ARX | 24 min |
| May 30, 2:21 PM CDT | Tornado Warning | ARX | 24 min |
| May 30, 3:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 30, 5:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 30, 6:40 PM CDT | Tornado Watch | SPC | 3 hr |
| May 31, 2:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 31, 8:27 PM CDT | Tornado Warning | ARX | 33 min |
| May 31, 8:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 10, 4:47 AM CDT | Dense Fog Advisory | ARX | 4 hr |
| Jun 15, 10:33 PM CDT | Dense Fog Advisory | ARX | 10 hr |
| Jun 17, 1:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 20, 8:53 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 20, 11:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 21, 3:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 21, 5:23 AM CDT | Mesoscale Discussion | SPC | 37 min |
| Jun 21, 5:40 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 21, 2:23 PM CDT | Flash Flood Watch | ARX | 22 hr |
| Jun 21, 4:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 21, 5:16 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 6:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 21, 11:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 26, 1:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 26, 5:41 PM CDT | Severe Thunderstorm Warning | ARX | 64 min |
| Jun 27, 12:42 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 9, 9:49 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 16, 11:51 AM CDT | Heat Advisory | ARX | 3 days |
| Jul 22, 1:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 22, 3:33 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 22, 5:14 PM CDT | Severe Thunderstorm Warning | ARX | 61 min |
| Jul 22, 5:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 22, 7:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 25, 5:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 1:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 6, 6:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 6, 7:31 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 6, 10:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 10:53 PM CDT | Severe Thunderstorm Warning | ARX | 52 min |
| Aug 11, 3:06 PM CDT | Dense Fog Advisory | ARX | 18 hr |
| Aug 21, 2:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 21, 2:26 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 21, 5:12 PM CDT | Severe Thunderstorm Warning | ARX | 48 min |
| Aug 21, 5:55 PM CDT | Severe Thunderstorm Warning | ARX | 80 min |
| Aug 21, 6:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 24, 3:26 AM CDT | Heat Advisory | ARX | 4 days |
| Aug 26, 9:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 28, 12:31 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| Aug 29, 7:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 29, 8:20 PM CDT | Tornado Watch | SPC | 5 hr |
| Aug 29, 11:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Sep 1, 4:58 AM CDT | Severe Thunderstorm Warning | ARX | 47 min |
| Sep 15, 3:28 AM CDT | Frost Advisory | ARX | 29 hr |
| Sep 16, 7:58 PM CDT | Frost Advisory | ARX | 11 hr |
| Sep 19, 10:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 21, 3:12 AM CDT | Frost Advisory | ARX | 29 hr |
| Sep 25, 3:36 AM CDT | Dense Fog Advisory | ARX | 6 hr |
| Oct 4, 11:05 PM CDT | Flash Flood Watch | ARX | 5 hr |
| Oct 13, 2:49 PM CDT | Frost Advisory | ARX | 17 hr |
| Oct 17, 4:33 AM CDT | Dense Fog Advisory | ARX | 5 hr |
| Oct 30, 9:42 PM CDT | Dense Fog Advisory | ARX | 14 hr |
| Nov 5, 2:53 AM CST | Dense Fog Advisory | ARX | 9 hr |
| Nov 21, 4:37 AM CST | Dense Fog Advisory | ARX | 6 hr |
| Dec 3, 4:24 AM CST | Winter Weather Advisory | ARX | 41 hr |
| Dec 5, 4:00 AM CST | Wind Chill Advisory | ARX | 29 hr |
| Dec 6, 9:51 AM CST | Wind Chill Advisory | ARX | 26 hr |
| Dec 7, 12:01 PM CST | Winter Weather Advisory | ARX | 39 hr |
| Dec 9, 4:01 AM CST | Wind Chill Advisory | ARX | 23 hr |
| Dec 10, 3:56 AM CST | Wind Chill Advisory | ARX | 49 hr |
| Dec 17, 10:35 AM CST | Winter Weather Advisory | ARX | 7 hr |
| Dec 23, 3:22 PM CST | Winter Weather Advisory | ARX | 36 hr |
| Dec 28, 3:12 AM CST | Dense Fog Advisory | ARX | 9 hr |
| Dec 28, 2:51 PM CST | Wind Chill Advisory | ARX | 45 hr |
| Dec 30, 3:24 PM CST | Wind Chill Advisory | ARX | 21 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 | 3 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 34 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 18 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind Chill Advisory | 11 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.