Alert archive / Wisconsin / Milwaukee County
Weather alerts in Milwaukee County, Wisconsin, 2012
81 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Milwaukee County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 81
- Warnings
- 19
- Watches
- 14
- Advisories
- 36
- Busiest month
- May15 alerts
- Busiest day
- May 3, 20124 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Milwaukee County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 8 | 33% | 1 | 100% | 44 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Milwaukee, WI: severe thunderstorm warnings | 94 | 50 | 47% | 160 | 81% | 24 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 11, 3:51 AM CST | Winter Storm Watch | MKX | 11 hr |
| Jan 11, 2:51 PM CST | Winter Weather Advisory | MKX | 36 hr |
| Jan 17, 3:46 AM CST | Winter Weather Advisory | MKX | 10 hr |
| Jan 19, 3:41 AM CST | Winter Storm Watch | MKX | 11 hr |
| Jan 19, 2:23 PM CST | Winter Weather Advisory | MKX | 30 hr |
| Jan 20, 8:26 PM CST | Lake Effect Snow Advisory | MKX | 7 hr |
| Jan 23, 2:31 AM CST | Dense Fog Advisory | MKX | 6 hr |
| Feb 2, 2:33 PM CST | Dense Fog Advisory | MKX | 21 hr |
| Feb 15, 10:02 PM CST | Dense Fog Advisory | MKX | 5 hr |
| Feb 22, 10:57 AM CST | Winter Storm Watch | MKX | 17 hr |
| Feb 23, 3:41 AM CST | Winter Weather Advisory | MKX | 29 hr |
| Feb 23, 8:45 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 26, 3:44 AM CST | Wind Advisory | MKX | 12 hr |
| Mar 1, 11:06 AM CST | Winter Storm Watch | MKX | 10 hr |
| Mar 1, 8:51 PM CST | Winter Storm Warning | MKX | 26 hr |
| Mar 7, 3:50 AM CST | Wind Advisory | MKX | 12 hr |
| Mar 12, 11:39 AM CDT | Severe Thunderstorm Warning | MKX | 36 min |
| Mar 23, 10:07 PM CDT | Dense Fog Advisory | MKX | 13 hr |
| Mar 24, 11:14 AM CDT | Dense Fog Advisory | MKX | 106 min |
| Apr 4, 3:10 PM CDT | Freeze Watch | MKX | 24 hr |
| Apr 5, 2:57 PM CDT | Freeze Warning | MKX | 17 hr |
| Apr 7, 3:50 PM CDT | Fire Weather Watch | MKX | 12 hr |
| Apr 8, 3:54 AM CDT | Red Flag Warning | MKX | 16 hr |
| Apr 16, 3:49 AM CDT | Wind Advisory | MKX | 15 hr |
| May 2, 3:37 AM CDT | Dense Fog Advisory | MKX | 3 hr |
| May 3, 10:34 AM CDT | Mesoscale Discussion | SPC | 86 min |
| May 3, 1:07 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 3, 2:15 PM CDT | Severe Thunderstorm Warning | MKX | 30 min |
| May 3, 2:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 6, 12:22 PM CDT | Severe Thunderstorm Warning | MKX | 23 min |
| May 6, 7:37 PM CDT | Areal Flood Advisory | MKX | 3 hr |
| May 15, 4:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 15, 6:00 PM CDT | Severe Thunderstorm Warning | MKX | 45 min |
| May 15, 6:10 PM CDT | Severe Thunderstorm Warning | MKX | 35 min |
| May 24, 3:29 AM CDT | Wind Advisory | MKX | 18 hr |
| May 28, 12:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 3:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 28, 6:27 PM CDT | Severe Thunderstorm Warning | MKX | 48 min |
| May 28, 7:04 PM CDT | Severe Thunderstorm Warning | MKX | 26 min |
| Jun 16, 11:29 PM CDT | Severe Thunderstorm Warning | MKX | 16 min |
| Jun 18, 3:40 AM CDT | Wind Advisory | MKX | 15 hr |
| Jun 27, 10:04 AM CDT | Heat Advisory | MKX | 33 hr |
| Jul 2, 10:05 AM CDT | Heat Advisory | MKX | 52 hr |
| Jul 3, 4:17 AM CDT | Excessive Heat Warning | MKX | 5 days |
| Jul 4, 10:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 15, 4:08 AM CDT | Heat Advisory | MKX | 65 hr |
| Jul 18, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 7:43 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 22, 9:35 PM CDT | Heat Advisory | MKX | 22 hr |
| Jul 24, 9:27 AM CDT | Heat Advisory | MKX | 36 hr |
| Jul 25, 6:38 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 11:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 26, 1:26 AM CDT | Severe Thunderstorm Warning | MKX | 64 min |
| Jul 26, 1:40 AM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 26, 12:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 12:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 31, 12:50 AM CDT | Severe Thunderstorm Warning | MKX | 40 min |
| Aug 4, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 16, 3:57 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 26, 11:53 PM CDT | Dense Fog Advisory | MKX | 8 hr |
| Sep 4, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 4, 9:07 PM CDT | Severe Thunderstorm Warning | MKX | 83 min |
| Sep 17, 1:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Sep 17, 2:58 PM CDT | Severe Thunderstorm Warning | MKX | 62 min |
| Sep 19, 1:37 PM CDT | Wind Advisory | MKX | 7 hr |
| Oct 5, 3:52 AM CDT | Frost Advisory | MKX | 24 hr |
| Oct 6, 3:47 AM CDT | Frost Advisory | MKX | 11 hr |
| Oct 6, 3:47 AM CDT | Freeze Warning | MKX | 23 hr |
| Oct 7, 8:18 PM CDT | Freeze Warning | MKX | 11 hr |
| Oct 11, 4:04 AM CDT | Frost Advisory | MKX | 27 hr |
| Oct 22, 8:59 PM CDT | Dense Fog Advisory | MKX | 12 hr |
| Oct 23, 3:39 PM CDT | Dense Fog Advisory | MKX | 20 hr |
| Oct 30, 3:17 AM CDT | Wind Advisory | MKX | 12 hr |
| Nov 11, 3:51 AM CST | Wind Advisory | MKX | 14 hr |
| Nov 16, 10:26 PM CST | Dense Fog Advisory | MKX | 11 hr |
| Nov 20, 5:34 PM CST | Dense Fog Advisory | MKX | 18 hr |
| Dec 2, 8:54 PM CST | Dense Fog Advisory | MKX | 12 hr |
| Dec 3, 9:07 AM CST | Dense Fog Advisory | MKX | 3 hr |
| Dec 18, 10:41 AM CST | Winter Weather Advisory | MKX | 7 hr |
| Dec 18, 3:47 PM CST | Winter Storm Watch | MKX | 12 hr |
| Dec 18, 3:47 PM CST | Winter Storm Warning | MKX | 57 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 | 12 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 12 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 5 |
| Lake Effect Snow Advisory | 1 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 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 archive20112013
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.