Alert archive / Wisconsin / Milwaukee County
Weather alerts in Milwaukee County, Wisconsin, 2010
111 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 111
- Warnings
- 30
- Watches
- 24
- Advisories
- 36
- Busiest month
- July29 alerts
- Busiest day
- July 22, 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 3 tornado warnings covering Milwaukee County in 2010 had a tornado report inside them.
Milwaukee County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 0 | ||
| Severe thunderstorm warnings | 8 | 5 | 38% | 7 | 43% | 25 min |
| Flash flood warnings | 5 | 4 | 20% | 3 | 100% | 104 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Milwaukee, WI: tornado warnings | 43 | 18 | 58% | 52 | 75% | 21 min |
| NWS Milwaukee, WI: severe thunderstorm warnings | 87 | 45 | 48% | 167 | 63% | 21 min |
| NWS Milwaukee, WI: flash flood warnings | 21 | 7 | 67% | 18 | 67% | 138 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 5, 3:24 PM CST | Winter Storm Watch | MKX | 12 hr |
| Jan 6, 3:41 AM CST | Winter Storm Warning | MKX | 48 hr |
| Jan 23, 1:24 PM CST | Dense Fog Advisory | MKX | 21 hr |
| Feb 7, 3:05 PM CST | Winter Storm Watch | MKX | 13 hr |
| Feb 8, 4:04 AM CST | Winter Storm Warning | MKX | 45 hr |
| Feb 20, 4:19 AM CST | Winter Storm Watch | MKX | 33 hr |
| Feb 21, 1:27 PM CST | Winter Weather Advisory | MKX | 19 hr |
| Feb 24, 2:20 PM CST | Lake Effect Snow Advisory | MKX | 8 hr |
| Mar 7, 2:46 PM CST | Dense Fog Advisory | MKX | 21 hr |
| Mar 8, 3:11 PM CST | Dense Fog Advisory | MKX | 23 hr |
| Mar 10, 10:04 AM CST | Dense Fog Advisory | MKX | 26 hr |
| Mar 11, 3:45 PM CST | Dense Fog Advisory | MKX | 36 hr |
| Apr 6, 4:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 6, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 6, 7:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 6, 9:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 27, 11:34 AM CDT | Frost Advisory | MKX | 20 hr |
| Apr 30, 1:05 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 30, 7:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 5, 1:30 PM CDT | Wind Advisory | MKX | 5 hr |
| May 8, 3:49 AM CDT | Frost Advisory | MKX | 28 hr |
| May 9, 3:36 PM CDT | Frost Advisory | MKX | 15 hr |
| May 13, 1:59 AM CDT | Flash Flood Watch | MKX | 7 hr |
| May 13, 2:58 AM CDT | Areal Flood Advisory | MKX | 5 hr |
| May 21, 10:40 AM CDT | Dense Fog Advisory | MKX | 22 hr |
| Jun 2, 5:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 2, 6:35 PM CDT | Areal Flood Advisory | MKX | 88 min |
| Jun 5, 4:49 PM CDT | Areal Flood Advisory | MKX | 4 hr |
| Jun 11, 5:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 15, 4:18 PM CDT | Areal Flood Advisory | MKX | 104 min |
| Jun 18, 2:33 AM CDT | Mesoscale Discussion | SPC | 27 min |
| Jun 18, 12:29 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 18, 3:50 PM CDT | Severe Thunderstorm Warning | MKX | 70 min |
| Jun 21, 8:10 PM CDT | Tornado Watch | SPC | 3 hr |
| Jun 21, 9:33 PM CDT | Tornado Warning | MKX | 42 min |
| Jun 21, 9:58 PM CDT | Areal Flood Advisory | MKX | 102 min |
| Jun 22, 12:31 PM CDT | River Flood Watch | MKX | 24 hr |
| Jun 22, 2:52 PM CDT | Flash Flood Watch | MKX | 24 hr |
| Jun 22, 8:18 PM CDT | River Flood Warning | MKX | 49 hr |
| Jun 23, 2:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 3:38 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 3:48 AM CDT | Areal Flood Advisory | MKX | 4 hr |
| Jun 23, 4:21 AM CDT | Flash Flood Warning | MKX | 4 hr |
| Jun 23, 5:39 AM CDT | River Flood Warning | MKX | 3 hr |
| Jun 26, 1:40 AM CDT | High Wind Warning | MKX | 2 hr |
| Jun 27, 1:16 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 7, 3:07 PM CDT | Areal Flood Advisory | MKX | 3 hr |
| Jul 14, 5:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 14, 6:53 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 14, 9:00 PM CDT | Areal Flood Advisory | MKX | 44 min |
| Jul 14, 9:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 14, 11:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 15, 12:23 AM CDT | Severe Thunderstorm Warning | MKX | 52 min |
| Jul 15, 12:36 AM CDT | Areal Flood Advisory | MKX | 3 hr |
| Jul 15, 1:31 AM CDT | Flash Flood Warning | MKX | 3 hr |
| Jul 15, 1:43 AM CDT | River Flood Warning | MKX | 5 hr |
| Jul 15, 4:51 AM CDT | Areal Flood Advisory | MKX | 3 hr |
| Jul 15, 9:06 PM CDT | River Flood Warning | MKX | 8 hr |
| Jul 22, 3:28 AM CDT | Flash Flood Watch | MKX | 21 hr |
| Jul 22, 3:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 22, 3:26 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 22, 5:09 PM CDT | Severe Thunderstorm Warning | MKX | 36 min |
| Jul 22, 5:10 PM CDT | Flash Flood Warning | MKX | 3 hr |
| Jul 22, 5:32 PM CDT | Flash Flood Warning | MKX | 6 hr |
| Jul 22, 6:18 PM CDT | Severe Thunderstorm Warning | MKX | 42 min |
| Jul 22, 6:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 6:47 PM CDT | Tornado Warning | MKX | 58 min |
| Jul 22, 7:35 PM CDT | Tornado Warning | MKX | 25 min |
| Jul 22, 8:04 PM CDT | River Flood Warning | MKX | 14 hr |
| Jul 22, 8:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 22, 8:40 PM CDT | River Flood Warning | MKX | 50 hr |
| Jul 22, 11:24 PM CDT | Flash Flood Warning | MKX | 3 hr |
| Jul 23, 3:38 AM CDT | Flash Flood Watch | MKX | 27 hr |
| Jul 23, 5:17 AM CDT | River Flood Warning | MKX | 52 hr |
| Jul 23, 11:31 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 9:29 PM CDT | Dense Fog Advisory | MKX | 12 hr |
| Aug 8, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 9, 2:20 AM CDT | Mesoscale Discussion | SPC | 100 min |
| Aug 9, 3:38 AM CDT | Severe Thunderstorm Warning | MKX | 67 min |
| Aug 13, 10:52 AM CDT | Flash Flood Watch | MKX | 11 hr |
| Aug 13, 2:28 PM CDT | Tornado Watch | SPC | 5 hr |
| Aug 20, 1:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 2, 12:38 AM CDT | Dense Fog Advisory | MKX | 7 hr |
| Sep 6, 8:33 AM CDT | Severe Thunderstorm Warning | MKX | 20 min |
| Sep 6, 3:03 PM CDT | Wind Advisory | MKX | 28 hr |
| Sep 21, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 21, 5:19 PM CDT | Severe Thunderstorm Warning | MKX | 41 min |
| Sep 21, 5:50 PM CDT | Severe Thunderstorm Warning | MKX | 40 min |
| Oct 3, 2:56 PM CDT | Frost Advisory | MKX | 17 hr |
| Oct 4, 2:26 PM CDT | Frost Advisory | MKX | 17 hr |
| Oct 11, 5:26 AM CDT | Dense Fog Advisory | MKX | 5 hr |
| Oct 24, 3:10 PM CDT | High Wind Watch | MKX | 13 hr |
| Oct 25, 4:03 AM CDT | High Wind Warning | MKX | 63 hr |
| Oct 26, 2:21 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Oct 26, 3:28 AM CDT | Tornado Watch | SPC | 8 hr |
| Oct 26, 6:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 22, 12:51 PM CST | Mesoscale Discussion | SPC | 54 min |
| Nov 22, 1:16 PM CST | Tornado Watch | SPC | 4 hr |
| Nov 22, 3:33 PM CST | Mesoscale Discussion | SPC | 57 min |
| Dec 3, 4:02 AM CST | Winter Weather Advisory | MKX | 38 hr |
| Dec 9, 3:28 AM CST | Winter Weather Advisory | MKX | 18 hr |
| Dec 9, 1:07 PM CST | Winter Storm Watch | MKX | 41 hr |
| Dec 10, 2:25 PM CST | Winter Storm Warning | MKX | 28 hr |
| Dec 11, 5:37 AM CST | Winter Weather Advisory | MKX | 12 hr |
| Dec 11, 1:56 PM CST | Blizzard Warning | MKX | 25 hr |
| Dec 11, 8:51 PM CST | Winter Storm Warning | MKX | 18 hr |
| Dec 12, 3:07 PM CST | Winter Weather Advisory | MKX | 9 hr |
| Dec 19, 2:45 PM CST | Winter Weather Advisory | MKX | 42 hr |
| Dec 21, 9:50 AM CST | Dense Fog Advisory | MKX | 13 hr |
| Dec 25, 3:38 AM CST | Lake Effect Snow Advisory | MKX | 23 hr |
| Dec 30, 7:01 AM CST | Dense Fog Advisory | MKX | 38 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 | 8 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 21 |
| Flooding | |
| Flash Flood Warning | 5 |
| River Flood Warning | 7 |
| Flash Flood Watch | 5 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 10 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Lake Effect Snow Advisory | 2 |
| Winter Weather Advisory | 6 |
| Cold | |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
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.