Alert archive / North Dakota / Sioux County
Weather alerts in Sioux County, North Dakota, 2011
113 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 113
- Warnings
- 44
- Watches
- 21
- Advisories
- 9
- Busiest month
- July44 alerts
- Busiest day
- July 10, 20117 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 20, 9:17 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 17, 4:32 PM CDT | River Flood Warning | BIS | 10 days |
| Mar 22, 12:51 PM CDT | Areal Flood Warning | BIS | 6 hr |
| Mar 22, 2:25 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 1, 9:51 AM CDT | River Flood Warning | BIS | 7 days |
| Apr 22, 11:33 AM CDT | River Flood Warning | BIS | 47 hr |
| Apr 22, 1:07 PM CDT | Areal Flood Advisory | BIS | 69 hr |
| May 8, 5:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 8, 6:13 PM CDT | Tornado Watch | SPC | 6 hr |
| May 8, 8:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 9, 10:15 PM CDT | Areal Flood Advisory | BIS | 15 hr |
| May 10, 1:43 AM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| May 10, 1:56 AM CDT | Mesoscale Discussion | SPC | 94 min |
| May 20, 10:45 AM CDT | Areal Flood Advisory | BIS | 48 hr |
| May 24, 11:39 AM CDT | Areal Flood Warning | BIS | 20 days |
| Jun 2, 7:22 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 2, 8:13 PM CDT | Severe Thunderstorm Warning | BIS | 51 min |
| Jun 2, 10:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 2, 11:57 PM CDT | Severe Thunderstorm Warning | BIS | 63 min |
| Jun 6, 3:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 7, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 7, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 12, 6:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 12, 6:28 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 12, 9:07 PM CDT | Severe Thunderstorm Warning | BIS | 53 min |
| Jun 12, 9:09 PM CDT | Flash Flood Warning | BIS | 4 hr |
| Jun 12, 9:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 12, 10:03 PM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| Jun 12, 10:23 PM CDT | Areal Flood Advisory | BIS | 8 hr |
| Jun 13, 2:59 PM CDT | Areal Flood Warning | BIS | 70 days |
| Jun 15, 12:36 AM CDT | River Flood Warning | BIS | 10 hr |
| Jun 18, 6:35 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| Jun 18, 7:54 PM CDT | Areal Flood Advisory | BIS | 2 hr |
| Jun 24, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 8:01 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 26, 6:08 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 26, 8:45 PM CDT | Severe Thunderstorm Warning | BIS | 45 min |
| Jul 6, 1:25 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 8, 2:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 8, 2:32 PM CDT | Tornado Watch | SPC | 9 hr |
| Jul 8, 5:53 PM CDT | Severe Thunderstorm Warning | BIS | 52 min |
| Jul 8, 6:21 PM CDT | Tornado Warning | BIS | 24 min |
| Jul 8, 6:45 PM CDT | Tornado Warning | BIS | 45 min |
| Jul 8, 8:06 PM CDT | Areal Flood Advisory | BIS | 11 hr |
| Jul 8, 9:20 PM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jul 10, 10:32 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 10, 11:08 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 10, 1:20 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| Jul 10, 2:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 10, 2:12 PM CDT | Severe Thunderstorm Warning | BIS | 63 min |
| Jul 10, 2:22 PM CDT | Tornado Warning | BIS | 23 min |
| Jul 10, 2:23 PM CDT | Areal Flood Advisory | BIS | 4 hr |
| Jul 14, 3:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 5:33 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 14, 9:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 16, 3:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 16, 4:57 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 16, 6:52 PM CDT | Severe Thunderstorm Warning | BIS | 53 min |
| Jul 16, 9:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 18, 3:28 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 7:43 PM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| Jul 18, 8:01 PM CDT | Tornado Warning | BIS | 29 min |
| Jul 18, 8:30 PM CDT | Tornado Warning | BIS | 30 min |
| Jul 18, 8:46 PM CDT | Severe Thunderstorm Warning | BIS | 45 min |
| Jul 18, 9:19 PM CDT | Areal Flood Advisory | BIS | 9 hr |
| Jul 22, 5:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 22, 5:35 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 22, 8:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 22, 10:16 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jul 22, 10:25 PM CDT | Tornado Warning | BIS | 35 min |
| Jul 22, 10:51 PM CDT | Tornado Warning | BIS | 24 min |
| Jul 22, 11:02 PM CDT | Tornado Warning | BIS | 13 min |
| Jul 22, 11:11 PM CDT | Severe Thunderstorm Warning | BIS | 64 min |
| Jul 23, 12:08 AM CDT | Severe Thunderstorm Warning | BIS | 52 min |
| Jul 24, 1:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 24, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 5:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 26, 3:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 5:21 PM CDT | Tornado Watch | SPC | 5 hr |
| Jul 29, 9:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 31, 5:44 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 31, 8:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 31, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| Jul 31, 10:35 PM CDT | Flash Flood Warning | BIS | 5 hr |
| Aug 1, 1:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Aug 1, 2:19 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 1, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 6:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 1:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 1:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 5, 5:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 6:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 11, 1:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 14, 8:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 15, 3:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 15, 5:23 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 15, 9:09 PM CDT | Severe Thunderstorm Warning | BIS | 66 min |
| Aug 15, 9:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 15, 11:21 PM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| Aug 16, 12:11 AM CDT | Severe Thunderstorm Warning | BIS | 64 min |
| Aug 18, 3:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 18, 4:38 PM CDT | Severe Thunderstorm Warning | BIS | 32 min |
| Aug 18, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 28, 2:09 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Aug 28, 4:06 AM CDT | Severe Thunderstorm Warning | BIS | 39 min |
| Sep 28, 3:09 AM CDT | Red Flag Warning | BIS | 18 hr |
| Oct 4, 3:52 AM CDT | Fire Weather Watch | BIS | 25 hr |
| Oct 5, 4:27 AM CDT | Red Flag Warning | BIS | 16 hr |
| Oct 6, 4:49 AM CDT | Fire Weather Watch | BIS | 24 hr |
| Oct 6, 4:49 AM CDT | Red Flag Warning | BIS | 16 hr |
| Oct 7, 4:37 AM CDT | Red Flag Warning | BIS | 16 hr |
| Nov 2, 4:39 AM CDT | Fire Weather Watch | BIS | 24 hr |
| Nov 3, 4:19 AM CDT | Red Flag Warning | BIS | 15 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 archive20102012
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.