Alert archive / Iowa / Sioux County
Weather alerts in Sioux County, Iowa, 2017
90 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 90
- Warnings
- 29
- Watches
- 15
- Advisories
- 27
- Busiest month
- June19 alerts
- Busiest day
- June 14, 20178 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 |
|---|---|---|---|
| Jan 1, 3:47 AM CST | Winter Weather Advisory | FSD | 35 hr |
| Jan 3, 2:57 PM CST | Wind Chill Advisory | FSD | 21 hr |
| Jan 4, 3:11 PM CST | Wind Chill Advisory | FSD | 43 hr |
| Jan 12, 3:35 PM CST | Winter Storm Watch | FSD | 71 hr |
| Jan 15, 4:41 AM CST | Winter Weather Advisory | FSD | 43 hr |
| Jan 19, 3:28 PM CST | Dense Fog Advisory | FSD | 46 hr |
| Jan 22, 2:33 PM CST | Winter Storm Watch | FSD | 24 hr |
| Jan 23, 2:59 PM CST | Winter Storm Warning | FSD | 51 hr |
| Jan 30, 3:25 AM CST | Wind Advisory | FSD | 18 hr |
| Feb 21, 3:59 PM CST | Winter Storm Watch | FSD | 36 hr |
| Feb 22, 3:22 PM CST | Blizzard Watch | FSD | 20 hr |
| Feb 23, 4:14 AM CST | Blizzard Warning | FSD | 37 hr |
| Feb 23, 6:05 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 23, 11:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 5, 4:04 PM CST | High Wind Watch | FSD | 36 hr |
| Mar 5, 4:04 PM CST | Wind Advisory | FSD | 68 hr |
| Mar 5, 4:09 PM CST | Red Flag Warning | FSD | 27 hr |
| Mar 6, 4:20 PM CST | Fire Weather Watch | FSD | 11 hr |
| Mar 6, 4:27 PM CST | Wind Advisory | FSD | 44 hr |
| Mar 7, 3:45 AM CST | Red Flag Warning | FSD | 14 hr |
| Mar 11, 3:12 PM CST | Winter Weather Advisory | FSD | 39 hr |
| Mar 23, 10:16 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 23, 10:44 AM CDT | Severe Thunderstorm Warning | FSD | 16 min |
| Mar 23, 11:19 AM CDT | Severe Thunderstorm Warning | FSD | 26 min |
| Apr 3, 1:52 AM CDT | Dense Fog Advisory | FSD | 10 hr |
| Apr 9, 3:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 15, 4:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 2, 9:22 AM CDT | River Flood Warning | FSD | 3 days |
| May 15, 9:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| May 15, 11:54 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 16, 2:13 AM CDT | Mesoscale Discussion | SPC | 92 min |
| May 16, 7:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 17, 11:16 AM CDT | River Flood Warning | FSD | 5 days |
| May 17, 12:08 PM CDT | Tornado Watch | SPC | 7 hr |
| May 17, 1:33 PM CDT | Tornado Warning | FSD | 27 min |
| May 17, 1:56 PM CDT | Tornado Warning | FSD | 34 min |
| May 17, 2:03 PM CDT | Tornado Warning | FSD | 27 min |
| May 17, 2:28 PM CDT | Tornado Warning | FSD | 32 min |
| May 20, 9:19 PM CDT | River Flood Warning | FSD | 4 days |
| Jun 3, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | 13 min |
| Jun 12, 11:28 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 12, 12:08 PM CDT | Severe Thunderstorm Warning | FSD | 38 min |
| Jun 13, 3:46 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 7:01 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 13, 8:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 13, 8:43 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Jun 13, 9:10 PM CDT | Severe Thunderstorm Warning | FSD | 50 min |
| Jun 13, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Jun 13, 9:40 PM CDT | Severe Thunderstorm Warning | FSD | 35 min |
| Jun 13, 9:43 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Jun 13, 9:58 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Jun 16, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 7:35 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 29, 4:54 PM CDT | Severe Thunderstorm Warning | FSD | 51 min |
| Jun 29, 5:43 PM CDT | Severe Thunderstorm Warning | FSD | 18 min |
| Jun 29, 6:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 29, 6:27 PM CDT | Severe Thunderstorm Warning | FSD | 33 min |
| Jul 11, 4:26 AM CDT | Heat Advisory | FSD | 15 hr |
| Jul 18, 3:07 PM CDT | Heat Advisory | FSD | 29 hr |
| Jul 19, 12:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 4:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 19, 7:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 20, 3:25 PM CDT | Heat Advisory | FSD | 29 hr |
| Jul 22, 3:26 AM CDT | Severe Thunderstorm Warning | FSD | 26 min |
| Aug 13, 7:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Aug 18, 2:54 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 19, 9:54 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| Aug 21, 11:12 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 21, 11:33 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 21, 2:11 PM CDT | Severe Thunderstorm Warning | FSD | 49 min |
| Aug 21, 2:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Sep 22, 10:35 AM CDT | Heat Advisory | FSD | 7 hr |
| Sep 22, 3:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 2, 2:22 PM CDT | Flash Flood Watch | FSD | 13 hr |
| Oct 4, 9:41 AM CDT | River Flood Warning | FSD | 9 days |
| Oct 9, 3:06 AM CDT | Frost Advisory | FSD | 30 hr |
| Oct 10, 2:22 PM CDT | Frost Advisory | FSD | 20 hr |
| Oct 22, 3:21 PM CDT | Wind Advisory | FSD | 51 hr |
| Oct 25, 3:05 PM CDT | Wind Advisory | FSD | 51 hr |
| Dec 3, 3:59 PM CST | Wind Advisory | FSD | 32 hr |
| Dec 11, 2:59 AM CST | Wind Advisory | FSD | 15 hr |
| Dec 12, 2:43 PM CST | Wind Advisory | FSD | 27 hr |
| Dec 17, 3:13 AM CST | Dense Fog Advisory | FSD | 7 hr |
| Dec 21, 9:48 AM CST | Winter Weather Advisory | FSD | 13 hr |
| Dec 25, 4:29 AM CST | Wind Chill Advisory | FSD | 32 hr |
| Dec 26, 2:31 PM CST | Wind Chill Advisory | FSD | 20 hr |
| Dec 29, 2:18 AM CST | Winter Weather Advisory | FSD | 14 hr |
| Dec 29, 3:50 PM CST | Wind Chill Advisory | FSD | 32 hr |
| Dec 30, 2:59 AM CST | Wind Chill Warning | FSD | 57 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 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 19 |
| Flooding | |
| River Flood Warning | 4 |
| Flash Flood Watch | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 1 |
| Blizzard Watch | 1 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Wind Chill Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
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. Rebuilt daily.