Alert archive / North Dakota / Sargent County
Weather alerts in Sargent County, North Dakota, 2012
107 weather alerts in 2012, 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 2012. Tap one for its archive.
- Alerts
- 107
- Warnings
- 19
- Watches
- 23
- Advisories
- 38
- Busiest month
- June16 alerts
- Busiest day
- June 14, 20126 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, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 4 | 43% | 3 | 67% | 15 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Forks, ND: tornado warnings | 9 | 5 | 44% | 18 | 39% | 18 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 124 | 97 | 22% | 211 | 85% | 23 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 10, 3:13 PM CST | Winter Weather Advisory | FGF | 14 hr |
| Jan 11, 4:12 AM CST | Wind Advisory | FGF | 11 hr |
| Jan 17, 4:12 AM CST | Extreme Cold Watch | FGF | 24 hr |
| Jan 18, 4:05 AM CST | Extreme Cold Warning | FGF | 32 hr |
| Jan 21, 3:18 PM CST | Winter Weather Advisory | FGF | 33 hr |
| Feb 1, 10:48 PM CST | Freezing Fog Advisory | FGF | 14 hr |
| Feb 2, 3:32 PM CST | Dense Fog Advisory | FGF | 44 hr |
| Feb 19, 3:05 PM CST | Winter Weather Advisory | FGF | 45 hr |
| Feb 24, 4:14 AM CST | Winter Storm Watch | FGF | 24 hr |
| Feb 25, 3:57 AM CST | Winter Storm Warning | FGF | 47 hr |
| Feb 25, 3:57 AM CST | Winter Weather Advisory | FGF | 42 hr |
| Feb 26, 3:09 PM CST | Blizzard Watch | FGF | 37 hr |
| Feb 28, 4:18 AM CST | Winter Storm Warning | FGF | 33 hr |
| Feb 28, 2:43 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 28, 8:41 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 4, 7:53 AM CST | Winter Weather Advisory | FGF | 4 hr |
| Mar 8, 4:06 AM CST | Wind Advisory | FGF | 14 hr |
| Mar 23, 3:32 AM CDT | Dense Fog Advisory | FGF | 8 hr |
| Mar 25, 3:28 PM CDT | High Wind Watch | FGF | 24 hr |
| Mar 26, 3:49 AM CDT | Wind Advisory | FGF | 39 hr |
| Mar 29, 11:53 PM CDT | Dense Fog Advisory | FGF | 11 hr |
| Apr 1, 3:44 AM CDT | Dense Fog Advisory | FGF | 6 hr |
| Apr 6, 4:27 AM CDT | Wind Advisory | FGF | 16 hr |
| Apr 6, 4:37 AM CDT | Red Flag Warning | FGF | 15 hr |
| Apr 6, 3:24 PM CDT | Fire Weather Watch | FGF | 12 hr |
| Apr 7, 3:32 AM CDT | Red Flag Warning | FGF | 16 hr |
| Apr 7, 3:35 AM CDT | Wind Advisory | FGF | 17 hr |
| Apr 7, 3:00 PM CDT | Fire Weather Watch | FGF | 12 hr |
| Apr 8, 2:47 AM CDT | Red Flag Warning | FGF | 17 hr |
| Apr 8, 3:00 AM CDT | Wind Advisory | FGF | 17 hr |
| Apr 14, 2:49 PM CDT | High Wind Watch | FGF | 13 hr |
| Apr 15, 4:00 AM CDT | Wind Advisory | FGF | 24 hr |
| Apr 25, 3:30 PM CDT | Frost Advisory | FGF | 19 hr |
| May 2, 7:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| May 2, 11:23 PM CDT | Severe Thunderstorm Warning | FGF | 39 min |
| May 10, 6:49 PM CDT | Wind Advisory | FGF | 8 hr |
| May 14, 9:28 PM CDT | Wind Advisory | FGF | 6 hr |
| May 22, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 22, 8:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 26, 11:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 1, 3:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 10, 12:45 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 10, 1:07 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 10, 4:18 AM CDT | Severe Thunderstorm Warning | FGF | 42 min |
| Jun 11, 3:32 AM CDT | Wind Advisory | FGF | 14 hr |
| Jun 13, 9:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 13, 10:53 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 14, 1:20 AM CDT | Special Weather Statement | FGF | 55 min |
| Jun 14, 2:44 AM CDT | Severe Thunderstorm Warning | FGF | 46 min |
| Jun 14, 3:01 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 14, 3:41 AM CDT | Special Weather Statement | FGF | 64 min |
| Jun 17, 2:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 3:45 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 17, 5:37 PM CDT | Severe Thunderstorm Warning | FGF | 53 min |
| Jun 19, 2:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 19, 4:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 2, 4:15 AM CDT | Heat Advisory | FGF | 15 hr |
| Jul 3, 4:17 AM CDT | Heat Advisory | FGF | 15 hr |
| Jul 4, 4:12 AM CDT | Heat Advisory | FGF | 18 hr |
| Jul 6, 5:42 AM CDT | Severe Thunderstorm Warning | FGF | 63 min |
| Jul 12, 2:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 19, 1:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 19, 3:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 1:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 22, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 22, 6:14 PM CDT | Severe Thunderstorm Warning | FGF | 61 min |
| Jul 24, 9:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 24, 11:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 25, 1:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 3:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 3, 1:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Aug 3, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 3, 5:45 PM CDT | Severe Thunderstorm Warning | FGF | 60 min |
| Aug 3, 6:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 24, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 24, 10:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Aug 28, 1:27 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 8, 8:07 PM CDT | Frost Advisory | FGF | 12 hr |
| Sep 9, 6:04 PM CDT | Fire Weather Watch | FGF | 9 hr |
| Sep 10, 3:20 AM CDT | Red Flag Warning | FGF | 17 hr |
| Sep 10, 3:27 PM CDT | Fire Weather Watch | FGF | 13 hr |
| Sep 11, 4:18 AM CDT | Red Flag Warning | FGF | 15 hr |
| Sep 12, 7:25 PM CDT | Frost Advisory | FGF | 14 hr |
| Sep 17, 2:34 PM CDT | Frost Advisory | FGF | 18 hr |
| Sep 18, 3:03 PM CDT | Fire Weather Watch | FGF | 13 hr |
| Sep 19, 3:49 AM CDT | Wind Advisory | FGF | 15 hr |
| Sep 19, 4:00 AM CDT | Red Flag Warning | FGF | 16 hr |
| Sep 21, 3:52 AM CDT | Wind Advisory | FGF | 18 hr |
| Sep 21, 3:11 PM CDT | Frost Advisory | FGF | 17 hr |
| Sep 22, 4:04 AM CDT | Freeze Warning | FGF | 28 hr |
| Oct 1, 3:55 AM CDT | Fire Weather Watch | FGF | 15 hr |
| Oct 1, 7:13 PM CDT | Red Flag Warning | FGF | 24 hr |
| Oct 3, 3:43 PM CDT | Wind Advisory | FGF | 27 hr |
| Oct 3, 11:15 PM CDT | Mesoscale Discussion | SPC | 5 hr |
| Oct 11, 3:02 PM CDT | Fire Weather Watch | FGF | 14 hr |
| Oct 16, 1:02 PM CDT | High Wind Watch | FGF | 26 hr |
| Oct 16, 1:02 PM CDT | Wind Advisory | FGF | 63 hr |
| Nov 10, 5:10 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Nov 21, 3:26 PM CST | Winter Weather Advisory | FGF | 39 hr |
| Nov 22, 4:48 AM CST | Wind Advisory | FGF | 19 hr |
| Dec 2, 12:58 AM CST | Dense Fog Advisory | FGF | 10 hr |
| Dec 7, 3:07 PM CST | Winter Storm Watch | FGF | 13 hr |
| Dec 8, 4:35 AM CST | Winter Storm Warning | FGF | 35 hr |
| Dec 8, 5:58 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 9, 3:22 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Dec 24, 4:10 AM CST | Wind Chill Advisory | FGF | 32 hr |
| Dec 30, 3:21 PM CST | Wind Chill Advisory | FGF | 18 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 archive20112013
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.