Alert archive / Wisconsin / Pierce County
Weather alerts in Pierce County, Wisconsin, 2022
100 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Pierce County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 100
- Warnings
- 29
- Watches
- 11
- Advisories
- 26
- Busiest month
- May29 alerts
- Busiest day
- May 9, 20227 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 6 tornado warnings covering Pierce County in 2022 had a tornado report inside them.
Pierce County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 2 | 67% | 0 | ||
| Severe thunderstorm warnings | 17 | 9 | 47% | 7 | 57% | 23 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Twin Cities, MN: tornado warnings | 56 | 15 | 73% | 37 | 59% | 12 min |
| NWS Twin Cities, MN: severe thunderstorm warnings | 272 | 142 | 48% | 634 | 80% | 23 min |
| NWS Twin Cities, MN: flash flood warnings | 7 | 4 | 43% | 15 | 53% | 38 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, 3:46 AM CST | Wind Chill Advisory | MPX | 30 hr |
| Jan 4, 2:46 AM CST | Winter Weather Advisory | MPX | 39 hr |
| Jan 6, 3:23 AM CST | Wind Chill Advisory | MPX | 31 hr |
| Jan 9, 1:36 PM CST | Wind Chill Advisory | MPX | 21 hr |
| Jan 19, 3:05 AM CST | Wind Chill Advisory | MPX | 33 hr |
| Jan 20, 3:01 AM CST | Wind Chill Advisory | MPX | 31 hr |
| Jan 24, 3:20 AM CST | Wind Chill Advisory | MPX | 56 hr |
| Feb 2, 3:11 AM CST | Wind Chill Advisory | MPX | 33 hr |
| Feb 17, 2:30 PM CST | Winter Weather Advisory | MPX | 30 hr |
| Feb 17, 2:31 PM CST | Wind Advisory | MPX | 30 hr |
| Feb 20, 2:57 PM CST | Winter Weather Advisory | MPX | 54 hr |
| Mar 4, 3:52 AM CST | Winter Weather Advisory | MPX | 50 hr |
| Mar 5, 2:09 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 5, 3:22 PM CST | Winter Weather Advisory | MPX | 15 hr |
| Mar 14, 8:53 AM CDT | Special Weather Statement | MPX | 82 min |
| Mar 14, 10:21 AM CDT | Special Weather Statement | MPX | 39 min |
| Mar 15, 1:03 AM CDT | Dense Fog Advisory | MPX | 10 hr |
| Apr 12, 1:57 PM CDT | Severe Thunderstorm Warning | MPX | 48 min |
| Apr 12, 2:36 PM CDT | Special Weather Statement | MPX | 54 min |
| Apr 12, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 13, 4:01 AM CDT | Wind Advisory | MPX | 39 hr |
| Apr 23, 8:18 PM CDT | Tornado Warning | MPX | 27 min |
| May 9, 1:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 9, 2:50 PM CDT | Tornado Watch | SPC | 7 hr |
| May 9, 5:15 PM CDT | Severe Thunderstorm Warning | MPX | 45 min |
| May 9, 5:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 9, 5:27 PM CDT | Tornado Warning | MPX | 33 min |
| May 9, 6:00 PM CDT | Severe Thunderstorm Warning | MPX | 45 min |
| May 9, 6:48 PM CDT | Severe Thunderstorm Warning | MPX | 42 min |
| May 9, 7:08 PM CDT | Tornado Warning | MPX | 37 min |
| May 9, 7:22 PM CDT | Severe Thunderstorm Warning | MPX | 23 min |
| May 11, 6:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| May 11, 5:27 PM CDT | Tornado Watch | SPC | 7 hr |
| May 11, 5:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 11, 7:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 11, 8:27 PM CDT | Severe Thunderstorm Warning | MPX | 63 min |
| May 11, 9:22 PM CDT | Tornado Warning | MPX | 38 min |
| May 11, 9:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 14, 10:01 PM CDT | River Flood Warning | MPX | 21 days |
| May 19, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 19, 4:22 PM CDT | Severe Thunderstorm Warning | MPX | 20 min |
| May 19, 4:35 PM CDT | Severe Thunderstorm Warning | MPX | 40 min |
| May 19, 4:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 19, 5:16 PM CDT | Special Weather Statement | MPX | 29 min |
| May 19, 5:32 PM CDT | Special Weather Statement | MPX | 43 min |
| May 19, 5:47 PM CDT | Severe Thunderstorm Warning | MPX | 28 min |
| May 29, 5:41 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 29, 7:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| May 29, 8:59 AM CDT | Special Weather Statement | MPX | 31 min |
| May 30, 7:06 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 30, 11:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 13, 3:16 AM CDT | Heat Advisory | MPX | 41 hr |
| Jun 15, 2:36 PM CDT | Special Weather Statement | MPX | 24 min |
| Jun 18, 2:23 PM CDT | Heat Advisory | MPX | 59 hr |
| Jun 28, 12:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 28, 1:41 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 5:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 30, 4:43 AM CDT | Special Weather Statement | MPX | 32 min |
| Jul 7, 1:34 PM CDT | Special Weather Statement | MPX | 86 min |
| Jul 11, 1:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 15, 1:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 3:54 AM CDT | Dense Fog Advisory | MPX | 5 hr |
| Jul 23, 10:43 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 23, 11:34 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 31, 4:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 31, 9:23 PM CDT | Tornado Warning | MPX | 22 min |
| Aug 2, 6:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 8:03 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 3, 12:29 AM CDT | Severe Thunderstorm Warning | MPX | 46 min |
| Aug 3, 1:05 AM CDT | Severe Thunderstorm Warning | MPX | 40 min |
| Aug 27, 5:47 PM CDT | Severe Thunderstorm Warning | MPX | 43 min |
| Aug 27, 6:29 PM CDT | Severe Thunderstorm Warning | MPX | 46 min |
| Aug 27, 6:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 9:35 PM CDT | Severe Thunderstorm Warning | MPX | 40 min |
| Aug 27, 9:38 PM CDT | Tornado Warning | MPX | 37 min |
| Aug 28, 10:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Sep 2, 4:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 9:25 PM CDT | Dense Fog Advisory | MPX | 13 hr |
| Sep 20, 12:19 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Sep 20, 4:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 20, 8:31 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 20, 8:50 PM CDT | Severe Thunderstorm Warning | MPX | 40 min |
| Sep 20, 9:28 PM CDT | Severe Thunderstorm Warning | MPX | 62 min |
| Sep 20, 9:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 20, 10:00 PM CDT | Severe Thunderstorm Warning | MPX | 30 min |
| Sep 27, 2:19 PM CDT | Freeze Warning | MPX | 18 hr |
| Nov 14, 2:29 AM CST | Winter Weather Advisory | MPX | 16 hr |
| Nov 28, 2:35 PM CST | Winter Weather Advisory | MPX | 30 hr |
| Nov 29, 9:45 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 1, 1:50 PM CST | Wind Advisory | MPX | 36 hr |
| Dec 9, 10:08 PM CST | Winter Weather Advisory | MPX | 12 hr |
| Dec 14, 9:00 AM CST | Winter Storm Warning | MPX | 36 hr |
| Dec 14, 1:47 PM CST | Winter Weather Advisory | MPX | 70 hr |
| Dec 19, 2:10 PM CST | Winter Storm Watch | MPX | 45 hr |
| Dec 20, 2:58 PM CST | Blizzard Warning | MPX | 4 days |
| Dec 20, 2:58 PM CST | Winter Storm Warning | MPX | 45 hr |
| Dec 21, 10:33 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 21, 11:34 AM CST | Winter Storm Warning | MPX | 50 hr |
| Dec 22, 3:18 AM CST | Wind Chill Advisory | MPX | 3 days |
| Dec 23, 1:28 PM CST | Winter Weather Advisory | MPX | 26 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 | 17 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 9 |
| Flooding | |
| River Flood Warning | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 10 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Advisory | 8 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.