Alert archive / Wisconsin / Monroe County
Weather alerts in Monroe County, Wisconsin, 2010
120 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Monroe County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 120
- Warnings
- 25
- Watches
- 30
- Advisories
- 30
- Busiest month
- July30 alerts
- Busiest day
- July 14, 20109 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 1 tornado warnings covering Monroe County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 17 minutes after it went out.
Monroe County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 1 | 100% | 17 min |
| Severe thunderstorm warnings | 10 | 7 | 30% | 6 | 67% | 24 min |
| Flash flood warnings | 2 | 1 | 50% | 4 | 100% | 16 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS La Crosse, WI: tornado warnings | 11 | 6 | 45% | 17 | 35% | 10 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 114 | 81 | 29% | 225 | 71% | 23 min |
| NWS La Crosse, WI: flash flood warnings | 30 | 12 | 60% | 38 | 63% | 58 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 1, 3:23 PM CST | Wind Chill Advisory | ARX | 21 hr |
| Jan 6, 4:11 AM CST | Winter Weather Advisory | ARX | 38 hr |
| Jan 17, 5:46 PM CST | Dense Fog Advisory | ARX | 45 hr |
| Jan 21, 6:22 PM CST | Freezing Rain Advisory | ARX | 6 hr |
| Feb 7, 3:13 PM CST | Winter Storm Watch | ARX | 13 hr |
| Feb 8, 3:50 AM CST | Winter Weather Advisory | ARX | 42 hr |
| Mar 7, 3:50 PM CST | Dense Fog Advisory | ARX | 20 hr |
| Mar 8, 9:24 PM CST | Dense Fog Advisory | ARX | 15 hr |
| Mar 10, 11:01 AM CST | Dense Fog Advisory | ARX | 22 hr |
| Mar 11, 8:34 PM CST | Dense Fog Advisory | ARX | 14 hr |
| Mar 17, 3:54 AM CDT | Dense Fog Advisory | ARX | 8 hr |
| Apr 2, 12:59 PM CDT | Severe Thunderstorm Watch | SPC | 117 min |
| Apr 16, 3:41 PM CDT | Fire Weather Watch | ARX | 12 hr |
| Apr 17, 3:56 AM CDT | Red Flag Warning | ARX | 15 hr |
| Apr 26, 3:15 PM CDT | Frost Advisory | ARX | 13 hr |
| Apr 27, 11:47 AM CDT | Frost Advisory | ARX | 20 hr |
| Apr 30, 12:01 PM CDT | Mesoscale Discussion | SPC | 29 min |
| Apr 30, 12:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 30, 1:05 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 30, 1:40 PM CDT | Severe Thunderstorm Warning | ARX | 50 min |
| May 4, 2:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 5, 9:41 AM CDT | Wind Advisory | ARX | 7 hr |
| May 7, 3:27 PM CDT | Freeze Watch | ARX | 12 hr |
| May 8, 3:36 AM CDT | Freeze Warning | ARX | 29 hr |
| May 9, 3:17 PM CDT | Frost Advisory | ARX | 17 hr |
| May 22, 2:20 AM CDT | Dense Fog Advisory | ARX | 7 hr |
| May 25, 10:53 AM CDT | Areal Flood Advisory | ARX | 3 hr |
| May 25, 12:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 17, 4:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 17, 5:50 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 17, 9:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 17, 10:12 PM CDT | Severe Thunderstorm Warning | ARX | 63 min |
| Jun 17, 10:55 PM CDT | Severe Thunderstorm Warning | ARX | 65 min |
| Jun 22, 2:40 AM CDT | Dense Fog Advisory | ARX | 6 hr |
| Jun 22, 3:56 PM CDT | Flash Flood Watch | ARX | 14 hr |
| Jun 22, 11:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 2:36 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 23, 2:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 25, 7:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 4:13 AM CDT | Flash Flood Watch | ARX | 27 hr |
| Jun 26, 10:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 26, 11:14 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 27, 12:20 AM CDT | Severe Thunderstorm Warning | ARX | 41 min |
| Jun 27, 1:16 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 5, 12:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 10, 11:41 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 14, 3:07 AM CDT | Heat Advisory | ARX | 16 hr |
| Jul 14, 10:29 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 11:43 AM CDT | Tornado Watch | SPC | 7 hr |
| Jul 14, 2:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 14, 4:52 PM CDT | Severe Thunderstorm Warning | ARX | 38 min |
| Jul 14, 5:12 PM CDT | Tornado Warning | ARX | 33 min |
| Jul 14, 5:42 PM CDT | Severe Thunderstorm Warning | ARX | 33 min |
| Jul 14, 6:20 PM CDT | Areal Flood Advisory | ARX | 2 hr |
| Jul 14, 6:53 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 14, 9:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 14, 9:49 PM CDT | Severe Thunderstorm Warning | ARX | 26 min |
| Jul 14, 10:01 PM CDT | Flash Flood Warning | ARX | 4 hr |
| Jul 15, 1:58 AM CDT | Areal Flood Warning | ARX | 4 hr |
| Jul 15, 6:10 AM CDT | Areal Flood Warning | ARX | 6 hr |
| Jul 16, 3:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 17, 8:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 17, 11:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 20, 3:48 AM CDT | Dense Fog Advisory | ARX | 5 hr |
| Jul 20, 2:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 22, 3:17 AM CDT | Flash Flood Watch | ARX | 21 hr |
| Jul 23, 3:51 AM CDT | Flash Flood Watch | ARX | 26 hr |
| Jul 23, 11:16 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 23, 11:31 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 2:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 27, 7:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 27, 8:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 10:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 31, 9:30 PM CDT | Dense Fog Advisory | ARX | 12 hr |
| Aug 8, 9:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 8, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 11:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 9, 2:20 AM CDT | Mesoscale Discussion | SPC | 100 min |
| Aug 12, 3:54 AM CDT | Heat Advisory | ARX | 15 hr |
| Aug 13, 12:48 AM CDT | Mesoscale Discussion | SPC | 57 min |
| Aug 13, 1:51 AM CDT | Flash Flood Watch | ARX | 22 hr |
| Aug 13, 4:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 13, 5:27 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 13, 6:31 AM CDT | Severe Thunderstorm Warning | ARX | 59 min |
| Aug 13, 7:18 AM CDT | Severe Thunderstorm Warning | ARX | 57 min |
| Aug 13, 12:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Aug 13, 1:05 PM CDT | River Flood Warning | ARX | 9 hr |
| Aug 13, 7:29 PM CDT | Flash Flood Warning | ARX | 113 min |
| Aug 20, 1:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 20, 1:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 20, 2:58 PM CDT | Severe Thunderstorm Warning | ARX | 46 min |
| Aug 21, 8:56 PM CDT | Dense Fog Advisory | ARX | 13 hr |
| Aug 31, 6:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Sep 2, 2:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Sep 6, 3:22 PM CDT | Wind Advisory | ARX | 25 hr |
| Sep 6, 7:50 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Sep 22, 3:15 AM CDT | Flood Watch | ARX | 48 hr |
| Sep 23, 9:23 AM CDT | Areal Flood Warning | ARX | 24 hr |
| Sep 23, 11:30 AM CDT | River Flood Warning | ARX | 13 hr |
| Sep 23, 2:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 26, 3:41 PM CDT | Frost Advisory | ARX | 16 hr |
| Oct 2, 3:27 AM CDT | Freeze Warning | ARX | 30 hr |
| Oct 24, 3:22 PM CDT | High Wind Watch | ARX | 24 hr |
| Oct 25, 3:27 PM CDT | High Wind Warning | ARX | 52 hr |
| Oct 26, 5:30 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Dec 2, 3:21 AM CST | Winter Storm Watch | ARX | 24 hr |
| Dec 3, 3:48 AM CST | Winter Weather Advisory | ARX | 38 hr |
| Dec 9, 3:34 AM CST | Winter Weather Advisory | ARX | 12 hr |
| Dec 9, 3:50 PM CST | Winter Storm Watch | ARX | 24 hr |
| Dec 10, 4:16 AM CST | Winter Storm Warning | ARX | 54 hr |
| Dec 10, 4:40 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 10, 11:08 PM CST | Blizzard Warning | ARX | 35 hr |
| Dec 11, 1:46 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 11, 6:49 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 12, 10:01 AM CST | Wind Chill Advisory | ARX | 25 hr |
| Dec 19, 3:54 AM CST | Winter Storm Watch | ARX | 12 hr |
| Dec 19, 3:42 PM CST | Winter Storm Warning | ARX | 44 hr |
| Dec 29, 11:04 AM CST | Dense Fog Advisory | ARX | 39 hr |
| Dec 30, 3:13 PM CST | Winter Weather Advisory | ARX | 24 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 archive20092011
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.