Alert archive / Wisconsin / Racine County
Weather alerts in Racine County, Wisconsin, 2021
91 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Racine County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 91
- Warnings
- 12
- Watches
- 7
- Advisories
- 33
- Busiest month
- August21 alerts
- Busiest day
- July 29, 20216 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 Racine County in 2021 had a tornado report inside them.
Racine County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 7 | 5 | 29% | 1 | 100% | 21 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Milwaukee, WI: tornado warnings | 16 | 5 | 69% | 20 | 45% | 13 min |
| NWS Milwaukee, WI: severe thunderstorm warnings | 89 | 41 | 54% | 168 | 71% | 28 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 1, 10:19 AM CST | Winter Weather Advisory | MKX | 14 hr |
| Jan 3, 2:23 PM CST | Dense Fog Advisory | MKX | 28 hr |
| Jan 5, 5:33 PM CST | Dense Fog Advisory | MKX | 18 hr |
| Jan 25, 3:17 AM CST | Winter Weather Advisory | MKX | 35 hr |
| Jan 25, 2:12 PM CST | Winter Storm Warning | MKX | 26 hr |
| Jan 29, 3:02 AM CST | Winter Storm Watch | MKX | 11 hr |
| Jan 29, 2:28 PM CST | Winter Storm Warning | MKX | 52 hr |
| Feb 3, 3:05 AM CST | Winter Weather Advisory | MKX | 57 hr |
| Feb 6, 3:25 AM CST | Wind Chill Advisory | MKX | 33 hr |
| Feb 13, 2:21 AM CST | Wind Chill Advisory | MKX | 58 hr |
| Feb 15, 3:17 AM CST | Winter Weather Advisory | MKX | 35 hr |
| Feb 15, 1:53 PM CST | Winter Storm Warning | MKX | 24 hr |
| Feb 28, 3:27 AM CST | Dense Fog Advisory | MKX | 9 hr |
| Mar 14, 3:52 AM CDT | Winter Weather Advisory | MKX | 44 hr |
| Mar 17, 3:15 AM CDT | Lakeshore Flood Advisory | MKX | 43 hr |
| Mar 17, 2:46 PM CDT | Wind Advisory | MKX | 28 hr |
| Apr 7, 4:40 PM CDT | Special Weather Statement | MKX | 35 min |
| Apr 29, 5:49 PM CDT | Special Weather Statement | MKX | 26 min |
| Apr 30, 2:49 PM CDT | Wind Advisory | MKX | 28 hr |
| Apr 30, 3:02 PM CDT | Fire Weather Watch | MKX | 13 hr |
| May 7, 1:48 PM CDT | Frost Advisory | MKX | 17 hr |
| May 10, 1:45 PM CDT | Frost Advisory | MKX | 18 hr |
| May 11, 1:53 PM CDT | Frost Advisory | MKX | 18 hr |
| May 12, 2:48 PM CDT | Frost Advisory | MKX | 16 hr |
| May 24, 2:42 AM CDT | Dense Fog Advisory | MKX | 8 hr |
| May 27, 3:11 AM CDT | Beach Hazards Statement | MKX | 58 hr |
| Jun 11, 6:46 PM CDT | Special Weather Statement | MKX | 29 min |
| Jun 17, 10:01 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 19, 7:15 AM CDT | Special Weather Statement | MKX | 30 min |
| Jun 30, 5:13 AM CDT | Beach Hazards Statement | MKX | 56 hr |
| Jun 30, 10:01 PM CDT | Special Weather Statement | MKX | 59 min |
| Jul 6, 3:23 AM CDT | Beach Hazards Statement | MKX | 28 hr |
| Jul 7, 9:08 PM CDT | Beach Hazards Statement | MKX | 22 hr |
| Jul 10, 2:32 PM CDT | Beach Hazards Statement | MKX | 28 hr |
| Jul 14, 11:45 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 2:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 14, 3:15 PM CDT | Special Weather Statement | MKX | 60 min |
| Jul 19, 4:56 PM CDT | Beach Hazards Statement | MKX | 41 hr |
| Jul 28, 7:17 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 28, 11:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 29, 1:17 AM CDT | Severe Thunderstorm Warning | MKX | 67 min |
| Jul 29, 1:31 AM CDT | Tornado Warning | MKX | 44 min |
| Jul 29, 1:34 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 29, 2:02 PM CDT | Beach Hazards Statement | MKX | 29 hr |
| Jul 31, 2:14 PM CDT | Beach Hazards Statement | MKX | 32 hr |
| Aug 6, 3:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Aug 6, 7:57 PM CDT | Special Weather Statement | MKX | 63 min |
| Aug 7, 8:06 PM CDT | Special Weather Statement | MKX | 69 min |
| Aug 9, 1:21 PM CDT | Heat Advisory | MKX | 30 hr |
| Aug 10, 2:16 PM CDT | Heat Advisory | MKX | 29 hr |
| Aug 10, 3:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 6:08 PM CDT | Severe Thunderstorm Warning | MKX | 97 min |
| Aug 10, 6:51 PM CDT | Severe Thunderstorm Warning | MKX | 54 min |
| Aug 10, 7:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 10, 7:43 PM CDT | Severe Thunderstorm Warning | MKX | 32 min |
| Aug 11, 9:58 AM CDT | Special Weather Statement | MKX | 77 min |
| Aug 11, 11:48 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 11, 6:24 PM CDT | Severe Thunderstorm Warning | MKX | 53 min |
| Aug 11, 6:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 20, 2:05 AM CDT | Dense Fog Advisory | MKX | 7 hr |
| Aug 21, 1:33 PM CDT | Beach Hazards Statement | MKX | 29 hr |
| Aug 21, 5:29 PM CDT | Special Weather Statement | MKX | 46 min |
| Aug 24, 7:02 PM CDT | Special Weather Statement | MKX | 58 min |
| Aug 28, 3:00 PM CDT | Special Weather Statement | MKX | 60 min |
| Aug 30, 7:13 PM CDT | Beach Hazards Statement | MKX | 60 hr |
| Sep 7, 10:47 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Sep 7, 11:21 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 12:19 PM CDT | Severe Thunderstorm Warning | MKX | 40 min |
| Sep 7, 12:30 PM CDT | Severe Thunderstorm Warning | MKX | 60 min |
| Sep 12, 3:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Sep 18, 3:00 AM CDT | Beach Hazards Statement | MKX | 9 hr |
| Sep 19, 1:51 PM CDT | Beach Hazards Statement | MKX | 41 hr |
| Sep 21, 1:51 PM CDT | Beach Hazards Statement | MKX | 58 hr |
| Sep 26, 2:52 PM CDT | Beach Hazards Statement | MKX | 40 hr |
| Sep 30, 7:55 PM CDT | Dense Fog Advisory | MKX | 13 hr |
| Oct 7, 8:22 PM CDT | Dense Fog Advisory | MKX | 14 hr |
| Oct 8, 11:23 PM CDT | Dense Fog Advisory | MKX | 12 hr |
| Oct 11, 12:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 21, 2:31 PM CDT | Frost Advisory | MKX | 17 hr |
| Oct 22, 2:37 PM CDT | Frost Advisory | MKX | 17 hr |
| Oct 23, 2:44 PM CDT | Lakeshore Flood Advisory | MKX | 52 hr |
| Oct 23, 2:45 PM CDT | Wind Advisory | MKX | 52 hr |
| Nov 11, 9:58 PM CST | Special Weather Statement | MKX | 62 min |
| Dec 5, 12:29 PM CST | Wind Advisory | MKX | 28 hr |
| Dec 11, 2:36 AM CST | Dense Fog Advisory | MKX | 3 hr |
| Dec 14, 2:34 AM CST | High Wind Watch | MKX | 25 hr |
| Dec 15, 3:33 AM CST | High Wind Warning | MKX | 29 hr |
| Dec 16, 8:49 AM CST | Wind Advisory | MKX | 8 hr |
| Dec 24, 3:21 PM CST | Dense Fog Advisory | MKX | 10 hr |
| Dec 27, 2:34 PM CST | Winter Weather Advisory | MKX | 35 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 | 7 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 13 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Frost Advisory | 6 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Coast and beach | |
| Lakeshore Flood Advisory | 2 |
| Beach Hazards Statement | 14 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.