Alert archive / North Dakota / Sargent County
Weather alerts in Sargent County, North Dakota, 2020
149 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sargent County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 149
- Warnings
- 27
- Watches
- 24
- Advisories
- 48
- Busiest month
- July39 alerts
- Busiest day
- June 8, 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.
Sargent County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 16 | 10 | 38% | 3 | 67% | 4 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 Grand Forks, ND: tornado warnings | 42 | 14 | 67% | 52 | 56% | 8 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 308 | 261 | 15% | 707 | 85% | 26 min |
| NWS Grand Forks, ND: flash flood warnings | 12 | 11 | 8% | 21 | 90% | 201 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, 9:15 AM CST | Winter Weather Advisory | FGF | 10 hr |
| Jan 4, 3:04 AM CST | High Wind Watch | FGF | 12 hr |
| Jan 4, 3:08 PM CST | Wind Advisory | FGF | 24 hr |
| Jan 5, 4:48 AM CST | High Wind Warning | FGF | 4 hr |
| Jan 5, 4:48 AM CST | Wind Advisory | FGF | 10 hr |
| Jan 10, 11:56 AM CST | Wind Chill Advisory | FGF | 24 hr |
| Jan 14, 6:56 AM CST | Wind Chill Advisory | FGF | 56 hr |
| Jan 14, 10:02 AM CST | Winter Weather Advisory | FGF | 26 hr |
| Jan 15, 2:53 PM CST | Winter Storm Watch | FGF | 38 hr |
| Jan 16, 3:17 PM CST | Wind Chill Advisory | FGF | 8 hr |
| Jan 16, 3:17 PM CST | Winter Storm Warning | FGF | 51 hr |
| Jan 16, 3:17 PM CST | Winter Weather Advisory | FGF | 31 hr |
| Jan 17, 4:39 AM CST | Blizzard Warning | FGF | 37 hr |
| Jan 18, 3:05 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Jan 19, 2:25 PM CST | Wind Chill Advisory | FGF | 22 hr |
| Jan 24, 5:08 AM CST | Dense Fog Advisory | FGF | 4 hr |
| Jan 25, 10:14 PM CST | Winter Weather Advisory | FGF | 23 hr |
| Jan 27, 8:57 PM CST | Dense Fog Advisory | FGF | 14 hr |
| Jan 28, 11:02 AM CST | Dense Fog Advisory | FGF | 118 min |
| Jan 29, 2:43 AM CST | Dense Fog Advisory | FGF | 9 hr |
| Jan 30, 4:08 AM CST | Winter Weather Advisory | FGF | 8 hr |
| Jan 30, 9:19 PM CST | Dense Fog Advisory | FGF | 12 hr |
| Feb 10, 3:31 AM CST | Winter Storm Watch | FGF | 35 hr |
| Feb 11, 2:51 PM CST | Blizzard Warning | FGF | 24 hr |
| Feb 12, 6:08 AM CST | Wind Chill Warning | FGF | 30 hr |
| Feb 13, 2:31 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Feb 18, 2:30 PM CST | Wind Chill Advisory | FGF | 20 hr |
| Feb 19, 2:26 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 29, 12:22 AM CST | Dense Fog Advisory | FGF | 9 hr |
| Feb 29, 2:46 PM CST | Wind Advisory | FGF | 27 hr |
| Mar 4, 3:06 PM CST | Wind Advisory | FGF | 24 hr |
| Mar 19, 3:26 AM CDT | Wind Advisory | FGF | 18 hr |
| Apr 1, 4:37 AM CDT | Winter Storm Watch | FGF | 23 hr |
| Apr 1, 3:30 PM CDT | Winter Storm Warning | FGF | 42 hr |
| Apr 6, 7:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 6, 11:43 PM CDT | Dense Fog Advisory | FGF | 10 hr |
| Apr 8, 3:19 AM CDT | Wind Advisory | FGF | 17 hr |
| Apr 20, 9:56 AM CDT | Wind Advisory | FGF | 9 hr |
| May 1, 2:42 PM CDT | Fire Weather Watch | FGF | 13 hr |
| May 2, 4:00 AM CDT | Red Flag Warning | FGF | 15 hr |
| May 14, 5:39 AM CDT | Dense Fog Advisory | FGF | 3 hr |
| Jun 2, 7:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 2, 8:29 AM CDT | Special Weather Statement | FGF | 61 min |
| Jun 6, 2:42 PM CDT | Special Weather Statement | FGF | 63 min |
| Jun 6, 8:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 6, 9:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 7, 1:39 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 7, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 7, 5:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 8:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 7, 9:11 PM CDT | Severe Thunderstorm Warning | FGF | 64 min |
| Jun 7, 9:46 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 7, 9:48 PM CDT | Severe Thunderstorm Warning | FGF | 42 min |
| Jun 7, 11:21 PM CDT | Severe Thunderstorm Warning | FGF | 39 min |
| Jun 7, 11:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 8, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 14, 3:15 AM CDT | Wind Advisory | FGF | 16 hr |
| Jun 16, 3:13 AM CDT | Wind Advisory | FGF | 18 hr |
| Jun 17, 5:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 7:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 17, 11:01 PM CDT | Special Weather Statement | FGF | 44 min |
| Jun 17, 11:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 20, 1:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 20, 6:10 PM CDT | Special Weather Statement | FGF | 20 min |
| Jun 25, 1:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 25, 1:41 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 25, 3:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 30, 5:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 6:04 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 8:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jul 4, 3:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 5, 3:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 5, 3:59 PM CDT | Special Weather Statement | FGF | 61 min |
| Jul 5, 4:07 PM CDT | Severe Thunderstorm Warning | FGF | 53 min |
| Jul 5, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 5, 4:46 PM CDT | Severe Thunderstorm Warning | FGF | 44 min |
| Jul 5, 6:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 8:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 5, 9:09 PM CDT | Special Weather Statement | FGF | 51 min |
| Jul 7, 11:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 7, 11:44 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 8, 12:19 AM CDT | Special Weather Statement | FGF | 56 min |
| Jul 8, 1:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 8, 3:22 AM CDT | Severe Thunderstorm Warning | FGF | 38 min |
| Jul 8, 4:23 AM CDT | Severe Thunderstorm Warning | FGF | 52 min |
| Jul 8, 6:19 AM CDT | Areal Flood Advisory | FGF | 8 hr |
| Jul 17, 3:31 AM CDT | Heat Advisory | FGF | 15 hr |
| Jul 17, 5:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 5:39 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 17, 7:13 PM CDT | Special Weather Statement | FGF | 62 min |
| Jul 17, 7:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 9:25 PM CDT | Special Weather Statement | FGF | 50 min |
| Jul 17, 9:49 PM CDT | Special Weather Statement | FGF | 56 min |
| Jul 17, 10:17 PM CDT | Severe Thunderstorm Warning | FGF | 58 min |
| Jul 17, 10:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 12:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 23, 3:19 AM CDT | Excessive Heat Watch | FGF | 24 hr |
| Jul 24, 3:26 AM CDT | Excessive Heat Warning | FGF | 17 hr |
| Jul 24, 4:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 24, 11:09 PM CDT | Special Weather Statement | FGF | 66 min |
| Jul 25, 12:07 AM CDT | Severe Thunderstorm Warning | FGF | 38 min |
| Jul 25, 12:27 AM CDT | Special Weather Statement | FGF | 48 min |
| Jul 25, 8:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 25, 11:51 PM CDT | Special Weather Statement | FGF | 24 min |
| Jul 26, 1:04 AM CDT | Areal Flood Advisory | FGF | 9 hr |
| Jul 31, 6:04 PM CDT | Special Weather Statement | FGF | 56 min |
| Jul 31, 6:40 PM CDT | Severe Thunderstorm Warning | FGF | 29 min |
| Aug 6, 6:42 AM CDT | Dense Fog Advisory | FGF | 3 hr |
| Aug 8, 9:24 AM CDT | Special Weather Statement | FGF | 66 min |
| Aug 9, 12:18 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 2:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 9, 3:38 PM CDT | Severe Thunderstorm Warning | FGF | 25 min |
| Aug 9, 3:55 PM CDT | Severe Thunderstorm Warning | FGF | 28 min |
| Aug 9, 4:24 PM CDT | Special Weather Statement | FGF | 36 min |
| Aug 9, 5:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 13, 6:09 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 13, 8:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 14, 8:44 AM CDT | Severe Thunderstorm Warning | FGF | 61 min |
| Aug 14, 9:38 AM CDT | Severe Thunderstorm Warning | FGF | 52 min |
| Aug 21, 5:44 AM CDT | Dense Fog Advisory | FGF | 3 hr |
| Aug 22, 2:26 AM CDT | Dense Fog Advisory | FGF | 8 hr |
| Aug 23, 5:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 23, 11:28 PM CDT | Special Weather Statement | FGF | 47 min |
| Aug 24, 12:02 AM CDT | Severe Thunderstorm Warning | FGF | 58 min |
| Aug 24, 12:21 AM CDT | Severe Thunderstorm Warning | FGF | 24 min |
| Aug 24, 1:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 27, 10:20 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 30, 4:55 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 30, 6:11 PM CDT | Special Weather Statement | FGF | 49 min |
| Sep 2, 2:53 PM CDT | Wind Advisory | FGF | 12 hr |
| Sep 7, 2:48 AM CDT | Freeze Watch | FGF | 36 hr |
| Sep 8, 2:54 PM CDT | Frost Advisory | FGF | 18 hr |
| Sep 9, 2:13 PM CDT | Frost Advisory | FGF | 18 hr |
| Sep 29, 3:26 PM CDT | Wind Advisory | FGF | 28 hr |
| Oct 1, 3:41 PM CDT | Frost Advisory | FGF | 16 hr |
| Oct 6, 3:31 AM CDT | Wind Advisory | FGF | 11 hr |
| Oct 6, 3:40 AM CDT | Red Flag Warning | FGF | 12 hr |
| Oct 13, 2:34 PM CDT | Wind Advisory | FGF | 28 hr |
| Oct 19, 3:11 PM CDT | Winter Weather Advisory | FGF | 31 hr |
| Oct 20, 3:19 PM CDT | Winter Storm Watch | FGF | 24 hr |
| Oct 21, 3:31 PM CDT | Winter Storm Warning | FGF | 26 hr |
| Oct 21, 9:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 30, 1:58 PM CDT | Wind Advisory | FGF | 38 hr |
| Nov 7, 2:14 PM CST | Wind Advisory | FGF | 32 hr |
| Dec 21, 4:30 AM CST | Winter Storm Watch | FGF | 35 hr |
| Dec 22, 3:28 PM CST | Blizzard Warning | FGF | 28 hr |
| Dec 23, 3:05 PM CST | Wind Chill Advisory | FGF | 24 hr |
| Dec 28, 3:13 PM CST | Winter Weather Advisory | FGF | 42 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 | 16 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 32 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 3 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 9 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 15 |
| 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 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.