Alert archive / Minnesota / Watonwan County
Weather alerts in Watonwan County, Minnesota, 2020
127 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Watonwan County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 127
- Warnings
- 26
- Watches
- 21
- Advisories
- 39
- Busiest month
- June19 alerts
- Busiest day
- September 6, 20207 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Watonwan County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 5 | 38% | 2 | 100% | 16 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Twin Cities, MN: tornado warnings | 47 | 15 | 68% | 41 | 59% | 12 min |
| NWS Twin Cities, MN: severe thunderstorm warnings | 194 | 98 | 49% | 328 | 70% | 20 min |
| NWS Twin Cities, MN: flash flood warnings | 18 | 10 | 44% | 26 | 85% | 126 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 3, 9:17 AM CST | Winter Weather Advisory | MPX | 9 hr |
| Jan 3, 1:24 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 4, 2:42 PM CST | Wind Advisory | MPX | 25 hr |
| Jan 12, 9:50 AM CST | Winter Weather Advisory | MPX | 14 hr |
| Jan 13, 2:41 PM CST | Winter Weather Advisory | MPX | 15 hr |
| Jan 14, 3:49 PM CST | Winter Weather Advisory | MPX | 19 hr |
| Jan 15, 2:53 PM CST | Wind Chill Advisory | MPX | 18 hr |
| Jan 15, 2:53 PM CST | Winter Storm Watch | MPX | 21 hr |
| Jan 16, 11:31 AM CST | Winter Storm Warning | MPX | 54 hr |
| Jan 17, 3:49 AM CST | Blizzard Warning | MPX | 38 hr |
| Jan 17, 6:32 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 18, 2:23 PM CST | Wind Chill Advisory | MPX | 22 hr |
| Jan 21, 7:48 PM CST | Winter Weather Advisory | MPX | 21 hr |
| Jan 22, 3:49 PM CST | Dense Fog Advisory | MPX | 20 hr |
| Feb 7, 3:06 AM CST | Winter Storm Watch | MPX | 25 hr |
| Feb 8, 4:30 AM CST | Winter Storm Warning | MPX | 34 hr |
| Feb 8, 4:30 AM CST | Winter Weather Advisory | MPX | 34 hr |
| Feb 9, 1:16 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 11, 2:19 PM CST | Blizzard Warning | MPX | 28 hr |
| Feb 11, 8:13 PM CST | Wind Chill Warning | MPX | 38 hr |
| Feb 12, 4:30 AM CST | Winter Weather Advisory | MPX | 18 hr |
| Feb 13, 3:41 AM CST | Wind Chill Advisory | MPX | 8 hr |
| Feb 13, 2:55 PM CST | Wind Chill Advisory | MPX | 18 hr |
| Feb 14, 3:02 AM CST | Wind Advisory | MPX | 7 hr |
| Feb 14, 10:14 AM CST | Wind Advisory | MPX | 5 hr |
| Feb 14, 2:46 PM CST | Winter Weather Advisory | MPX | 9 hr |
| Feb 16, 2:54 PM CST | Winter Weather Advisory | MPX | 33 hr |
| Feb 19, 3:35 PM CST | Wind Chill Advisory | MPX | 17 hr |
| Mar 4, 2:26 PM CST | Wind Advisory | MPX | 28 hr |
| Mar 19, 3:29 AM CDT | Wind Advisory | MPX | 18 hr |
| Apr 2, 3:35 AM CDT | Winter Weather Advisory | MPX | 42 hr |
| Apr 10, 3:30 PM CDT | Winter Storm Watch | MPX | 23 hr |
| Apr 11, 2:42 PM CDT | Winter Storm Warning | MPX | 37 hr |
| Apr 12, 6:26 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 12, 12:38 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 2:39 PM CDT | Fire Weather Watch | MPX | 13 hr |
| Apr 20, 3:49 AM CDT | Red Flag Warning | MPX | 14 hr |
| Apr 20, 9:44 AM CDT | Wind Advisory | MPX | 9 hr |
| Apr 24, 6:04 PM CDT | Special Weather Statement | MPX | 26 min |
| Apr 27, 6:09 AM CDT | Fire Weather Watch | MPX | 13 hr |
| May 2, 4:04 AM CDT | Red Flag Warning | MPX | 15 hr |
| May 7, 3:46 AM CDT | Freeze Watch | MPX | 23 hr |
| May 7, 3:46 AM CDT | Freeze Warning | MPX | 29 hr |
| May 8, 3:11 AM CDT | Freeze Warning | MPX | 29 hr |
| May 9, 2:52 PM CDT | Special Weather Statement | MPX | 83 min |
| May 10, 2:41 AM CDT | Freeze Warning | MPX | 29 hr |
| May 11, 2:01 PM CDT | Freeze Warning | MPX | 19 hr |
| Jun 2, 3:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 2, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 2, 5:14 PM CDT | Severe Thunderstorm Warning | MPX | 31 min |
| Jun 2, 5:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 2, 5:42 PM CDT | Severe Thunderstorm Warning | MPX | 48 min |
| Jun 4, 4:56 PM CDT | Special Weather Statement | MPX | 49 min |
| Jun 4, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 4, 10:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 14, 3:15 AM CDT | Wind Advisory | MPX | 17 hr |
| Jun 18, 3:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 18, 4:36 PM CDT | Special Weather Statement | MPX | 39 min |
| Jun 18, 5:12 PM CDT | Special Weather Statement | MPX | 33 min |
| Jun 21, 2:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 3:59 PM CDT | Severe Thunderstorm Warning | MPX | 46 min |
| Jun 21, 4:28 PM CDT | Severe Thunderstorm Warning | MPX | 32 min |
| Jun 21, 5:57 PM CDT | Special Weather Statement | MPX | 33 min |
| Jun 21, 6:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 1:31 AM CDT | Flash Flood Watch | MPX | 10 hr |
| Jul 6, 4:17 AM CDT | Special Weather Statement | MPX | 88 min |
| Jul 6, 1:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 3:05 PM CDT | Heat Advisory | MPX | 29 hr |
| Jul 9, 4:47 AM CDT | Severe Thunderstorm Warning | MPX | 23 min |
| Jul 11, 12:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 11, 1:10 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 11, 2:57 PM CDT | Severe Thunderstorm Warning | MPX | 48 min |
| Jul 13, 7:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 16, 3:36 PM CDT | Excessive Heat Watch | MPX | 23 hr |
| Jul 17, 2:24 PM CDT | Excessive Heat Warning | MPX | 31 hr |
| Jul 18, 4:06 AM CDT | Special Weather Statement | MPX | 39 min |
| Jul 23, 3:06 AM CDT | Excessive Heat Watch | MPX | 12 hr |
| Jul 23, 2:37 PM CDT | Heat Advisory | MPX | 66 hr |
| Jul 25, 9:18 PM CDT | Flash Flood Watch | MPX | 12 hr |
| Aug 8, 1:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 8, 2:14 PM CDT | Special Weather Statement | MPX | 46 min |
| Aug 9, 3:54 AM CDT | Special Weather Statement | MPX | 66 min |
| Aug 9, 10:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 12, 9:02 AM CDT | Special Weather Statement | MPX | 73 min |
| Aug 14, 1:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 5:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 21, 6:20 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 24, 3:40 AM CDT | Heat Advisory | MPX | 16 hr |
| Aug 25, 3:07 AM CDT | Heat Advisory | MPX | 16 hr |
| Aug 28, 1:28 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 28, 1:54 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 28, 4:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Sep 5, 7:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 5, 11:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 6, 1:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Sep 6, 1:30 AM CDT | Severe Thunderstorm Warning | MPX | 45 min |
| Sep 6, 2:01 AM CDT | Severe Thunderstorm Warning | MPX | 44 min |
| Sep 6, 2:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Oct 1, 3:42 AM CDT | Frost Advisory | MPX | 28 hr |
| Oct 6, 3:26 AM CDT | Red Flag Warning | MPX | 16 hr |
| Oct 11, 3:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Oct 11, 4:54 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Oct 11, 9:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Oct 13, 2:15 PM CDT | Wind Advisory | MPX | 34 hr |
| Oct 13, 2:24 PM CDT | Fire Weather Watch | MPX | 14 hr |
| Oct 14, 4:03 AM CDT | Red Flag Warning | MPX | 13 hr |
| Oct 19, 2:46 PM CDT | Winter Weather Advisory | MPX | 34 hr |
| Oct 31, 1:55 PM CDT | Wind Advisory | MPX | 20 hr |
| Nov 5, 2:55 PM CST | Fire Weather Watch | MPX | 11 hr |
| Nov 6, 1:58 AM CST | Red Flag Warning | MPX | 16 hr |
| Nov 7, 1:06 PM CST | Wind Advisory | MPX | 29 hr |
| Nov 9, 2:46 PM CST | Winter Storm Watch | MPX | 14 hr |
| Nov 9, 8:44 PM CST | Winter Weather Advisory | MPX | 29 hr |
| Nov 10, 4:52 AM CST | Winter Storm Warning | MPX | 21 hr |
| Nov 10, 3:51 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 14, 2:18 PM CST | Wind Advisory | MPX | 25 hr |
| Dec 6, 2:16 PM CST | Dense Fog Advisory | MPX | 23 hr |
| Dec 7, 6:06 PM CST | Dense Fog Advisory | MPX | 13 hr |
| Dec 21, 3:26 AM CST | Wind Advisory | MPX | 13 hr |
| Dec 22, 3:49 AM CST | Winter Storm Watch | MPX | 23 hr |
| Dec 22, 9:08 PM CST | Blizzard Warning | MPX | 30 hr |
| Dec 23, 9:38 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 23, 5:15 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 24, 2:43 AM CST | Wind Chill Advisory | MPX | 9 hr |
| Dec 28, 3:18 AM CST | Winter Weather Advisory | MPX | 47 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 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Watch | 2 |
| Winter | |
| Blizzard Warning | 3 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 13 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 2 |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 4 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 12 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 4 |
| 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 archive20192021
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.