Alert archive / Wisconsin / Pepin County
Weather alerts in Pepin County, Wisconsin, 2018
102 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Pepin County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 102
- Warnings
- 20
- Watches
- 20
- Advisories
- 20
- Busiest month
- September16 alerts
- Busiest day
- August 27, 20186 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 Pepin County in 2018 had a tornado report inside them.
Pepin County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 7 | 6 | 14% | 3 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Twin Cities, MN: tornado warnings | 12 | 7 | 42% | 30 | 77% | 16 min |
| NWS Twin Cities, MN: severe thunderstorm warnings | 159 | 73 | 54% | 311 | 66% | 21 min |
| NWS Twin Cities, MN: flash flood warnings | 8 | 1 | 88% | 10 | 30% | 87 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, 10:54 AM CST | Wind Chill Advisory | MPX | 23 hr |
| Jan 3, 2:19 PM CST | Wind Chill Advisory | MPX | 12 hr |
| Jan 9, 3:29 AM CST | Winter Storm Watch | MPX | 35 hr |
| Jan 10, 3:22 AM CST | Winter Weather Advisory | MPX | 39 hr |
| Jan 10, 2:25 PM CST | Winter Storm Warning | MPX | 14 hr |
| Jan 12, 2:58 PM CST | Wind Chill Advisory | MPX | 18 hr |
| Jan 14, 2:26 PM CST | Winter Weather Advisory | MPX | 24 hr |
| Jan 19, 4:04 AM CST | Winter Storm Watch | MPX | 59 hr |
| Jan 20, 3:48 PM CST | Winter Storm Warning | MPX | 56 hr |
| Jan 22, 9:20 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 22, 3:15 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 31, 2:02 PM CST | Wind Chill Advisory | MPX | 22 hr |
| Feb 1, 2:10 PM CST | Wind Chill Advisory | MPX | 20 hr |
| Feb 18, 4:04 AM CST | Winter Weather Advisory | MPX | 56 hr |
| Feb 21, 2:59 PM CST | Winter Weather Advisory | MPX | 41 hr |
| Feb 22, 2:24 PM CST | Winter Storm Watch | MPX | 24 hr |
| Feb 23, 2:16 PM CST | Winter Storm Warning | MPX | 37 hr |
| Feb 23, 9:05 PM CST | Dense Fog Advisory | MPX | 12 hr |
| Mar 3, 3:39 AM CST | Winter Storm Watch | MPX | 36 hr |
| Mar 4, 3:10 PM CST | Winter Storm Warning | MPX | 36 hr |
| Mar 5, 1:17 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Apr 2, 4:00 AM CDT | Winter Storm Watch | MPX | 10 hr |
| Apr 2, 11:14 AM CDT | Winter Storm Warning | MPX | 38 hr |
| Apr 11, 3:44 PM CDT | Winter Storm Watch | MPX | 47 hr |
| Apr 12, 9:34 PM CDT | Winter Storm Warning | MPX | 3 days |
| Apr 14, 6:02 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 24, 9:21 PM CDT | River Flood Warning | MPX | 5 days |
| Apr 28, 3:13 PM CDT | Fire Weather Watch | MPX | 12 hr |
| Apr 29, 3:42 AM CDT | Red Flag Warning | MPX | 17 hr |
| May 5, 7:40 PM CDT | Special Weather Statement | MPX | 35 min |
| May 25, 7:07 AM CDT | Special Weather Statement | MPX | 23 min |
| May 25, 12:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 2:02 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 25, 5:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 25, 6:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 7:02 PM CDT | Severe Thunderstorm Warning | MPX | 58 min |
| May 27, 3:52 PM CDT | Heat Advisory | MPX | 27 hr |
| May 28, 8:35 PM CDT | Special Weather Statement | MPX | 25 min |
| May 28, 9:06 PM CDT | Special Weather Statement | MPX | 39 min |
| May 29, 4:57 PM CDT | Special Weather Statement | MPX | 63 min |
| May 29, 5:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 12, 6:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 15, 3:04 PM CDT | Heat Advisory | MPX | 52 hr |
| Jun 15, 3:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 6:11 AM CDT | Special Weather Statement | MPX | 64 min |
| Jun 17, 12:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 17, 2:44 PM CDT | Flash Flood Watch | MPX | 16 hr |
| Jun 18, 2:39 AM CDT | Special Weather Statement | MPX | 111 min |
| Jun 18, 10:31 AM CDT | River Flood Warning | MPX | 5 days |
| Jun 28, 2:24 AM CDT | Excessive Heat Watch | MPX | 20 hr |
| Jun 28, 2:46 PM CDT | Excessive Heat Warning | MPX | 31 hr |
| Jun 30, 2:54 AM CDT | Heat Advisory | MPX | 16 hr |
| Jun 30, 1:39 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 3:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 3:25 AM CDT | Excessive Heat Watch | MPX | 24 hr |
| Jul 4, 3:35 AM CDT | Heat Advisory | MPX | 11 hr |
| Jul 4, 9:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 3:33 PM CDT | Special Weather Statement | MPX | 57 min |
| Jul 11, 3:30 PM CDT | Heat Advisory | MPX | 29 hr |
| Jul 12, 4:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 12, 5:04 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 12, 7:12 PM CDT | Special Weather Statement | MPX | 78 min |
| Jul 12, 7:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 12, 9:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 14, 3:04 AM CDT | Dense Fog Advisory | MPX | 5 hr |
| Jul 25, 3:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 25, 4:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 6:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Aug 1, 3:12 PM CDT | Special Weather Statement | MPX | 63 min |
| Aug 3, 10:12 AM CDT | Severe Thunderstorm Warning | MPX | 33 min |
| Aug 3, 10:47 AM CDT | Severe Thunderstorm Warning | MPX | 28 min |
| Aug 8, 12:37 AM CDT | Dense Fog Advisory | MPX | 8 hr |
| Aug 25, 2:54 AM CDT | Dense Fog Advisory | MPX | 7 hr |
| Aug 27, 1:53 AM CDT | Special Weather Statement | MPX | 67 min |
| Aug 27, 3:09 AM CDT | Special Weather Statement | MPX | 36 min |
| Aug 27, 2:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 27, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 27, 5:47 PM CDT | Severe Thunderstorm Warning | MPX | 58 min |
| Aug 27, 6:20 PM CDT | Severe Thunderstorm Warning | MPX | 55 min |
| Sep 4, 3:15 AM CDT | Flash Flood Watch | MPX | 25 hr |
| Sep 4, 2:06 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 4, 3:35 PM CDT | Tornado Watch | SPC | 7 hr |
| Sep 4, 6:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 4, 8:18 PM CDT | Special Weather Statement | MPX | 57 min |
| Sep 4, 10:19 PM CDT | Special Weather Statement | MPX | 86 min |
| Sep 5, 12:06 AM CDT | Special Weather Statement | MPX | 3 hr |
| Sep 17, 3:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Sep 18, 12:47 AM CDT | Special Weather Statement | MPX | 43 min |
| Sep 20, 2:15 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 20, 5:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 6:23 PM CDT | Tornado Watch | SPC | 5 hr |
| Sep 20, 7:13 PM CDT | Tornado Warning | MPX | 36 min |
| Sep 20, 7:37 PM CDT | Severe Thunderstorm Warning | MPX | 38 min |
| Sep 20, 8:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Sep 28, 3:21 AM CDT | Freeze Warning | MPX | 30 hr |
| Oct 3, 2:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 3, 3:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 3, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | 46 min |
| Oct 7, 3:21 PM CDT | Flood Watch | MPX | 60 hr |
| Oct 10, 10:07 PM CDT | River Flood Warning | MPX | 5 days |
| Nov 30, 2:24 PM CST | Winter Weather Advisory | MPX | 46 hr |
| Dec 27, 2:07 PM CST | Winter Weather Advisory | MPX | 22 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.