Alert archive / North Dakota / Sioux County
Weather alerts in Sioux County, North Dakota, 2021
71 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sioux County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 71
- Warnings
- 36
- Watches
- 17
- Advisories
- 3
- Busiest month
- August18 alerts
- Busiest day
- June 8, 20217 alerts
Over time
By month
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 |
|---|---|---|---|
| Feb 25, 2:11 AM CST | Red Flag Warning | BIS | 17 hr |
| Mar 5, 1:31 PM CST | Fire Weather Watch | BIS | 14 hr |
| Mar 21, 4:09 AM CDT | Red Flag Warning | BIS | 16 hr |
| Mar 26, 2:33 PM CDT | Fire Weather Watch | BIS | 44 hr |
| Mar 27, 2:26 PM CDT | Red Flag Warning | BIS | 55 hr |
| Mar 30, 3:50 AM CDT | Red Flag Warning | BIS | 16 hr |
| Mar 31, 4:03 AM CDT | Fire Weather Watch | BIS | 11 hr |
| Mar 31, 2:42 PM CDT | Red Flag Warning | BIS | 31 hr |
| Apr 2, 3:48 AM CDT | Red Flag Warning | BIS | 16 hr |
| Apr 2, 8:44 PM CDT | Fire Weather Watch | BIS | 6 hr |
| Apr 3, 3:08 AM CDT | Red Flag Warning | BIS | 18 hr |
| Apr 3, 9:15 PM CDT | Fire Weather Watch | BIS | 6 hr |
| Apr 4, 3:41 AM CDT | Red Flag Warning | BIS | 17 hr |
| Apr 5, 8:13 AM CDT | Red Flag Warning | BIS | 12 hr |
| Apr 8, 2:51 PM CDT | Fire Weather Watch | BIS | 14 hr |
| Apr 9, 4:24 AM CDT | Red Flag Warning | BIS | 18 hr |
| Apr 28, 3:34 PM CDT | Fire Weather Watch | BIS | 23 hr |
| Apr 29, 2:38 PM CDT | Red Flag Warning | BIS | 30 hr |
| May 1, 3:18 AM CDT | Red Flag Warning | BIS | 17 hr |
| May 5, 2:25 PM CDT | Fire Weather Watch | BIS | 13 hr |
| May 23, 2:50 PM CDT | Tornado Watch | SPC | 7 hr |
| May 23, 6:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 23, 8:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 6, 1:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 8, 12:59 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jun 8, 1:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 8, 1:45 PM CDT | Severe Thunderstorm Warning | BIS | 60 min |
| Jun 8, 3:34 PM CDT | Areal Flood Advisory | BIS | 3 hr |
| Jun 8, 4:41 PM CDT | Severe Thunderstorm Warning | BIS | 49 min |
| Jun 8, 5:28 PM CDT | Severe Thunderstorm Warning | BIS | 32 min |
| Jun 8, 6:31 PM CDT | Areal Flood Advisory | BIS | 10 hr |
| Jun 8, 11:58 PM CDT | Severe Thunderstorm Warning | BIS | 47 min |
| Jun 9, 12:43 AM CDT | Severe Thunderstorm Warning | BIS | 47 min |
| Jun 9, 8:37 AM CDT | River Flood Warning | BIS | 23 hr |
| Jun 10, 9:54 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 11, 12:21 AM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| Jun 11, 1:11 AM CDT | Severe Thunderstorm Warning | BIS | 34 min |
| Jun 19, 9:56 PM CDT | Special Weather Statement | BIS | 34 min |
| Jul 3, 3:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 8, 4:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 22, 5:42 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 22, 6:10 PM CDT | Severe Thunderstorm Warning | BIS | 65 min |
| Jul 23, 5:04 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 7:02 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 7:31 PM CDT | Severe Thunderstorm Warning | BIS | 32 min |
| Jul 23, 7:40 PM CDT | Severe Thunderstorm Warning | BIS | 35 min |
| Jul 23, 8:20 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| Jul 26, 4:13 AM CDT | Special Weather Statement | BIS | 32 min |
| Aug 7, 2:53 PM CDT | Areal Flood Advisory | BIS | 3 hr |
| Aug 7, 4:11 PM CDT | Flash Flood Warning | BIS | 3 hr |
| Aug 10, 4:02 AM CDT | Red Flag Warning | BIS | 17 hr |
| Aug 16, 2:25 PM CDT | Fire Weather Watch | BIS | 14 hr |
| Aug 17, 4:17 AM CDT | Red Flag Warning | BIS | 17 hr |
| Aug 23, 7:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 23, 9:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 23, 9:53 PM CDT | Special Weather Statement | BIS | 37 min |
| Aug 23, 10:06 PM CDT | Severe Thunderstorm Warning | BIS | 24 min |
| Aug 23, 10:11 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 26, 2:35 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 3:52 AM CDT | Severe Thunderstorm Warning | BIS | 23 min |
| Aug 30, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 30, 2:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 30, 5:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 30, 6:02 PM CDT | Severe Thunderstorm Warning | BIS | 58 min |
| Aug 30, 6:49 PM CDT | Severe Thunderstorm Warning | BIS | 35 min |
| Aug 30, 6:56 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Sep 5, 3:16 PM CDT | Red Flag Warning | BIS | 29 hr |
| Sep 27, 2:29 PM CDT | Red Flag Warning | BIS | 31 hr |
| Oct 5, 3:50 AM CDT | Fire Weather Watch | BIS | 10 hr |
| Oct 5, 2:07 PM CDT | Red Flag Warning | BIS | 30 hr |
| Nov 16, 9:38 AM CST | Red Flag Warning | BIS | 8 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 | 6 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 3 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Areal Flood Advisory | 3 |
| Fire | |
| Red Flag Warning | 18 |
| Fire Weather Watch | 10 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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. Rebuilt daily.