Alert archive / Minnesota / Otter Tail County
Weather alerts in Otter Tail County, Minnesota, 2017
120 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Otter Tail County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 120
- Warnings
- 34
- Watches
- 14
- Advisories
- 39
- Busiest month
- July34 alerts
- Busiest day
- July 17, 201712 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 2 tornado warnings covering Otter Tail County in 2017 had a tornado report inside them.
Otter Tail County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 0 | ||
| Severe thunderstorm warnings | 23 | 21 | 9% | 40 | 80% | 28 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Forks, ND: tornado warnings | 39 | 24 | 38% | 67 | 67% | 15 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 148 | 137 | 7% | 435 | 76% | 26 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, 3:27 PM CST | Winter Weather Advisory | FGF | 45 hr |
| Jan 3, 2:18 PM CST | Wind Chill Advisory | FGF | 70 hr |
| Jan 6, 2:54 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Jan 7, 3:30 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Jan 11, 3:33 PM CST | Wind Chill Advisory | FGF | 20 hr |
| Jan 12, 2:49 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Jan 19, 1:27 AM CST | Dense Fog Advisory | FGF | 11 hr |
| Jan 21, 5:53 PM CST | Dense Fog Advisory | FGF | 18 hr |
| Jan 22, 12:03 PM CST | Dense Fog Advisory | FGF | 3 hr |
| Feb 8, 3:20 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 26, 12:06 AM CST | Dense Fog Advisory | FGF | 5 hr |
| Mar 6, 3:33 PM CST | Wind Advisory | FGF | 41 hr |
| Mar 9, 3:34 AM CST | Wind Chill Advisory | FGF | 29 hr |
| Mar 11, 3:19 PM CST | Winter Weather Advisory | FGF | 27 hr |
| Mar 27, 8:46 PM CDT | Dense Fog Advisory | FGF | 15 hr |
| Apr 13, 3:51 AM CDT | Dense Fog Advisory | FGF | 6 hr |
| Apr 15, 5:28 PM CDT | Fire Weather Watch | FGF | 12 hr |
| Apr 16, 3:49 AM CDT | Red Flag Warning | FGF | 16 hr |
| Apr 25, 3:25 PM CDT | Winter Weather Advisory | FGF | 39 hr |
| Apr 29, 3:44 PM CDT | Winter Storm Watch | FGF | 12 hr |
| Apr 30, 4:07 AM CDT | Winter Weather Advisory | FGF | 23 hr |
| May 3, 2:39 PM CDT | Special Weather Statement | FGF | 51 min |
| May 28, 3:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 28, 4:23 PM CDT | Special Weather Statement | FGF | 52 min |
| May 28, 5:20 PM CDT | Special Weather Statement | FGF | 40 min |
| Jun 7, 2:11 PM CDT | Tornado Watch | SPC | 4 hr |
| Jun 7, 5:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 13, 7:33 AM CDT | Special Weather Statement | FGF | 42 min |
| Jun 13, 2:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 13, 5:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 6:55 PM CDT | Severe Thunderstorm Warning | FGF | 50 min |
| Jun 13, 7:40 PM CDT | Severe Thunderstorm Warning | FGF | 50 min |
| Jun 13, 7:46 PM CDT | Severe Thunderstorm Warning | FGF | 59 min |
| Jun 13, 8:27 PM CDT | Severe Thunderstorm Warning | FGF | 48 min |
| Jun 13, 8:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 13, 8:54 PM CDT | Severe Thunderstorm Warning | FGF | 66 min |
| Jun 13, 9:37 PM CDT | Severe Thunderstorm Warning | FGF | 53 min |
| Jun 17, 2:06 PM CDT | Severe Thunderstorm Warning | FGF | 54 min |
| Jun 17, 3:52 PM CDT | Special Weather Statement | FGF | 53 min |
| Jun 19, 1:42 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 21, 3:35 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 21, 6:21 PM CDT | Tornado Warning | FGF | 24 min |
| Jun 21, 6:41 PM CDT | Tornado Warning | FGF | 49 min |
| Jun 21, 7:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 7:53 PM CDT | Special Weather Statement | FGF | 37 min |
| Jun 21, 9:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 4, 3:33 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 6:03 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 4, 9:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 5, 12:54 AM CDT | Severe Thunderstorm Warning | FGF | 45 min |
| Jul 5, 1:56 AM CDT | Special Weather Statement | FGF | 34 min |
| Jul 5, 5:52 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 10:12 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 12:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 11, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 11, 4:48 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 11, 9:14 PM CDT | Severe Thunderstorm Warning | FGF | 61 min |
| Jul 11, 9:43 PM CDT | Severe Thunderstorm Warning | FGF | 62 min |
| Jul 11, 10:08 PM CDT | Severe Thunderstorm Warning | FGF | 67 min |
| Jul 11, 10:38 PM CDT | Severe Thunderstorm Warning | FGF | 67 min |
| Jul 17, 2:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 17, 3:18 PM CDT | Severe Thunderstorm Warning | FGF | 57 min |
| Jul 17, 3:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 3:26 PM CDT | Severe Thunderstorm Warning | FGF | 64 min |
| Jul 17, 4:24 PM CDT | Severe Thunderstorm Warning | FGF | 66 min |
| Jul 17, 4:34 PM CDT | Severe Thunderstorm Warning | FGF | 56 min |
| Jul 17, 5:01 PM CDT | Areal Flood Advisory | FGF | 3 hr |
| Jul 17, 5:30 PM CDT | Severe Thunderstorm Warning | FGF | 39 min |
| Jul 17, 6:05 PM CDT | Areal Flood Advisory | FGF | 115 min |
| Jul 17, 6:13 PM CDT | Areal Flood Advisory | FGF | 3 hr |
| Jul 17, 6:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 17, 6:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 2:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 3:07 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 21, 5:49 PM CDT | Severe Thunderstorm Warning | FGF | 56 min |
| Jul 21, 6:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 21, 6:57 PM CDT | Severe Thunderstorm Warning | FGF | 63 min |
| Jul 22, 4:00 AM CDT | Severe Thunderstorm Warning | FGF | 60 min |
| Jul 22, 4:59 AM CDT | Special Weather Statement | FGF | 46 min |
| Jul 22, 5:31 AM CDT | Areal Flood Advisory | FGF | 119 min |
| Sep 19, 6:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Sep 19, 8:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 19, 10:10 PM CDT | Mesoscale Discussion | SPC | 35 min |
| Sep 19, 10:36 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 19, 10:50 PM CDT | Special Weather Statement | FGF | 25 min |
| Sep 19, 11:17 PM CDT | Special Weather Statement | FGF | 28 min |
| Sep 19, 11:46 PM CDT | Severe Thunderstorm Warning | FGF | 44 min |
| Sep 20, 12:26 AM CDT | Special Weather Statement | FGF | 34 min |
| Sep 22, 3:02 AM CDT | Severe Thunderstorm Warning | FGF | 28 min |
| Sep 22, 3:27 AM CDT | Severe Thunderstorm Warning | FGF | 48 min |
| Sep 22, 4:10 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 7, 5:27 AM CDT | Dense Fog Advisory | FGF | 5 hr |
| Oct 8, 3:23 PM CDT | Frost Advisory | FGF | 18 hr |
| Oct 8, 3:23 PM CDT | Freeze Watch | FGF | 12 hr |
| Oct 9, 3:01 AM CDT | Freeze Warning | FGF | 30 hr |
| Oct 24, 3:32 PM CDT | Winter Storm Watch | FGF | 37 hr |
| Oct 25, 3:15 PM CDT | High Wind Warning | FGF | 31 hr |
| Oct 26, 4:33 AM CDT | Winter Weather Advisory | FGF | 29 hr |
| Oct 26, 10:07 PM CDT | Wind Advisory | FGF | 11 hr |
| Nov 3, 3:30 AM CDT | Winter Weather Advisory | FGF | 43 hr |
| Nov 4, 6:06 PM CDT | Dense Fog Advisory | FGF | 4 hr |
| Nov 13, 9:19 PM CST | Dense Fog Advisory | FGF | 15 hr |
| Nov 14, 7:12 PM CST | Dense Fog Advisory | FGF | 5 hr |
| Nov 20, 10:59 AM CST | Wind Advisory | FGF | 19 hr |
| Nov 28, 3:23 AM CST | Wind Advisory | FGF | 15 hr |
| Nov 29, 3:07 AM CST | Wind Advisory | FGF | 14 hr |
| Nov 29, 10:03 AM CST | Red Flag Warning | FGF | 7 hr |
| Dec 3, 3:54 AM CST | Winter Storm Watch | FGF | 24 hr |
| Dec 3, 3:14 PM CST | Blizzard Warning | FGF | 28 hr |
| Dec 3, 3:14 PM CST | Winter Storm Warning | FGF | 32 hr |
| Dec 4, 6:18 PM CST | Winter Weather Advisory | FGF | 5 hr |
| Dec 11, 5:41 AM CST | Wind Advisory | FGF | 9 hr |
| Dec 12, 3:02 PM CST | Winter Weather Advisory | FGF | 21 hr |
| Dec 13, 5:08 AM CST | High Wind Warning | FGF | 112 min |
| Dec 17, 2:46 AM CST | Dense Fog Advisory | FGF | 4 hr |
| Dec 24, 10:55 AM CST | Wind Chill Warning | FGF | 49 hr |
| Dec 24, 10:55 AM CST | Wind Chill Advisory | FGF | 3 days |
| Dec 28, 3:42 PM CST | Wind Chill Advisory | FGF | 26 hr |
| Dec 29, 2:37 AM CST | Wind Chill Warning | FGF | 3 days |
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 | 23 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 11 |
| Flooding | |
| Areal Flood Advisory | 4 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 9 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| 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 archive20162018
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.