Alert archive / Wisconsin / Sauk County
Weather alerts in Sauk County, Wisconsin, 2011
108 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sauk County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 108
- Warnings
- 28
- Watches
- 21
- Advisories
- 30
- Busiest month
- June26 alerts
- Busiest day
- June 8, 201110 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 1 tornado warnings covering Sauk County in 2011 had a tornado report inside them.
Sauk County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 21 | 8 | 62% | 7 | 71% | 30 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Milwaukee, WI: tornado warnings | 11 | 5 | 55% | 14 | 71% | 9 min |
| NWS Milwaukee, WI: severe thunderstorm warnings | 129 | 69 | 47% | 245 | 81% | 24 min |
| NWS Milwaukee, WI: flash flood warnings | 2 | 0 | 100% | 0 |
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 16, 3:11 PM CST | Winter Weather Advisory | MKX | 33 hr |
| Jan 19, 3:03 PM CST | Wind Chill Advisory | MKX | 43 hr |
| Jan 28, 11:03 PM CST | Winter Weather Advisory | MKX | 6 hr |
| Jan 30, 4:01 AM CST | Winter Storm Watch | MKX | 49 hr |
| Jan 30, 12:25 PM CST | Winter Weather Advisory | MKX | 51 hr |
| Feb 1, 5:09 AM CST | Winter Storm Warning | MKX | 28 hr |
| Feb 2, 2:18 PM CST | Wind Chill Advisory | MKX | 20 hr |
| Feb 7, 2:25 PM CST | Wind Chill Advisory | MKX | 18 hr |
| Feb 8, 3:54 AM CST | Wind Chill Advisory | MKX | 30 hr |
| Feb 9, 3:07 PM CST | Wind Chill Advisory | MKX | 19 hr |
| Feb 16, 9:22 AM CST | Dense Fog Advisory | MKX | 22 hr |
| Feb 18, 2:57 PM CST | Winter Storm Watch | MKX | 19 hr |
| Feb 19, 9:49 AM CST | Winter Storm Warning | MKX | 42 hr |
| Feb 20, 4:35 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 20, 4:44 AM CST | Winter Storm Warning | MKX | 19 hr |
| Feb 20, 10:49 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 20, 11:33 AM CST | Winter Weather Advisory | MKX | 42 hr |
| Mar 8, 3:35 PM CST | Winter Weather Advisory | MKX | 21 hr |
| Mar 17, 10:23 AM CDT | River Flood Watch | MKX | 35 hr |
| Mar 20, 8:55 PM CDT | River Flood Warning | MKX | 8 days |
| Mar 21, 5:06 AM CDT | River Flood Warning | MKX | 6 days |
| Apr 3, 8:54 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 3, 10:09 PM CDT | Severe Thunderstorm Warning | MKX | 36 min |
| Apr 3, 11:54 PM CDT | Severe Thunderstorm Warning | MKX | 23 min |
| Apr 10, 1:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 3:19 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 10, 6:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 10, 7:05 PM CDT | Severe Thunderstorm Warning | MKX | 40 min |
| Apr 10, 7:41 PM CDT | Severe Thunderstorm Warning | MKX | 49 min |
| Apr 14, 3:08 PM CDT | Wind Advisory | MKX | 30 hr |
| Apr 18, 2:45 PM CDT | Winter Storm Watch | MKX | 7 hr |
| Apr 18, 9:45 PM CDT | Winter Weather Advisory | MKX | 24 hr |
| May 10, 5:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 10, 8:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 11, 12:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 11, 1:04 PM CDT | Severe Thunderstorm Warning | MKX | 41 min |
| May 11, 1:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 11, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 1:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 12, 1:41 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 16, 2:07 PM CDT | Frost Advisory | MKX | 17 hr |
| May 22, 4:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 10:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 2:04 PM CDT | Tornado Watch | SPC | 9 hr |
| May 22, 2:16 PM CDT | Severe Thunderstorm Warning | MKX | 14 min |
| May 22, 2:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 22, 5:54 PM CDT | Severe Thunderstorm Warning | MKX | 51 min |
| May 22, 6:09 PM CDT | Tornado Warning | MKX | 51 min |
| May 22, 6:39 PM CDT | Severe Thunderstorm Warning | MKX | 36 min |
| Jun 6, 2:09 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 6, 5:12 AM CDT | Severe Thunderstorm Warning | MKX | 48 min |
| Jun 6, 5:50 AM CDT | Severe Thunderstorm Warning | MKX | 40 min |
| Jun 6, 6:09 AM CDT | Severe Thunderstorm Warning | MKX | 51 min |
| Jun 6, 6:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 6, 6:26 AM CDT | Severe Thunderstorm Warning | MKX | 49 min |
| Jun 6, 7:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 6, 3:17 PM CDT | Heat Advisory | MKX | 29 hr |
| Jun 8, 2:02 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 1:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 8, 3:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 8, 4:49 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 8, 5:51 PM CDT | Severe Thunderstorm Warning | MKX | 39 min |
| Jun 8, 6:01 PM CDT | Severe Thunderstorm Warning | MKX | 44 min |
| Jun 8, 6:26 PM CDT | Areal Flood Advisory | MKX | 3 hr |
| Jun 8, 6:28 PM CDT | Severe Thunderstorm Warning | MKX | 47 min |
| Jun 8, 6:43 PM CDT | Severe Thunderstorm Warning | MKX | 62 min |
| Jun 8, 6:56 PM CDT | Severe Thunderstorm Warning | MKX | 37 min |
| Jun 8, 7:44 PM CDT | Severe Thunderstorm Warning | MKX | 46 min |
| Jun 8, 7:51 PM CDT | Severe Thunderstorm Warning | MKX | 39 min |
| Jun 19, 4:23 AM CDT | Areal Flood Advisory | MKX | 2 hr |
| Jun 21, 11:45 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 21, 2:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 21, 8:27 PM CDT | Areal Flood Advisory | MKX | 4 hr |
| Jun 27, 3:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 30, 3:50 AM CDT | Heat Advisory | MKX | 41 hr |
| Jul 1, 11:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 5, 12:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 11, 2:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 11, 3:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 15, 4:09 AM CDT | Excessive Heat Watch | MKX | 35 hr |
| Jul 16, 3:10 PM CDT | Excessive Heat Warning | MKX | 5 days |
| Jul 18, 6:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 8:05 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 18, 6:18 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 18, 9:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 19, 11:27 PM CDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Jul 23, 9:37 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 23, 6:36 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 2, 12:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 13, 3:42 AM CDT | Dense Fog Advisory | MKX | 5 hr |
| Aug 23, 5:19 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 23, 8:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Sep 2, 7:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Sep 2, 7:50 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Sep 2, 8:13 AM CDT | Severe Thunderstorm Warning | MKX | 23 min |
| Sep 3, 2:46 AM CDT | Severe Thunderstorm Warning | MKX | 29 min |
| Sep 14, 3:46 AM CDT | Frost Advisory | MKX | 28 hr |
| Sep 28, 3:16 PM CDT | Wind Advisory | MKX | 34 hr |
| Sep 30, 3:45 AM CDT | Frost Advisory | MKX | 29 hr |
| Oct 1, 9:26 AM CDT | Frost Advisory | MKX | 24 hr |
| Oct 20, 3:46 AM CDT | Frost Advisory | MKX | 29 hr |
| Nov 8, 2:28 PM CST | Winter Weather Advisory | MKX | 25 hr |
| Nov 9, 4:41 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 11, 3:21 PM CST | Freezing Rain Advisory | MKX | 18 hr |
| Dec 14, 3:03 PM CST | Dense Fog Advisory | MKX | 8 hr |
| Dec 29, 9:12 PM CST | Winter Weather Advisory | MKX | 15 hr |
| Dec 31, 5:02 AM CST | Freezing Fog Advisory | MKX | 7 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 | 21 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 29 |
| Flooding | |
| River Flood Warning | 2 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 2 |
| Cold | |
| Frost Advisory | 5 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.