Alert archive / Iowa / Sioux County
Weather alerts in Sioux County, Iowa, 2016
127 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 127
- Warnings
- 39
- Watches
- 18
- Advisories
- 39
- Busiest month
- June25 alerts
- Busiest day
- August 11, 20166 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 3, 9:23 PM CST | Dense Fog Advisory | FSD | 13 hr |
| Jan 7, 7:57 AM CST | Dense Fog Advisory | FSD | 4 hr |
| Jan 7, 12:09 PM CST | Dense Fog Advisory | FSD | 111 min |
| Jan 7, 2:03 PM CST | Dense Fog Advisory | FSD | 88 min |
| Jan 9, 3:45 AM CST | Wind Chill Advisory | FSD | 31 hr |
| Jan 16, 3:32 AM CST | Wind Chill Warning | FSD | 32 hr |
| Jan 16, 3:32 AM CST | Wind Chill Advisory | FSD | 53 hr |
| Jan 24, 7:39 PM CST | Dense Fog Advisory | FSD | 10 hr |
| Jan 31, 3:23 AM CST | Blizzard Watch | FSD | 35 hr |
| Feb 1, 3:38 AM CST | Blizzard Warning | FSD | 48 hr |
| Feb 2, 7:50 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 2, 11:35 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 3, 3:56 AM CST | Winter Weather Advisory | FSD | 8 hr |
| Feb 5, 10:52 PM CST | Dense Fog Advisory | FSD | 11 hr |
| Feb 6, 3:15 PM CST | Wind Advisory | FSD | 51 hr |
| Feb 7, 10:21 PM CST | Winter Weather Advisory | FSD | 29 hr |
| Feb 13, 3:48 AM CST | Winter Weather Advisory | FSD | 32 hr |
| Feb 15, 8:24 AM CST | Dense Fog Advisory | FSD | 4 hr |
| Feb 18, 2:51 PM CST | High Wind Warning | FSD | 21 hr |
| Feb 18, 2:51 PM CST | Wind Advisory | FSD | 24 hr |
| Feb 19, 7:20 AM CST | Wind Advisory | FSD | 8 hr |
| Feb 29, 12:48 PM CST | Winter Weather Advisory | FSD | 17 hr |
| Mar 13, 6:34 AM CDT | Dense Fog Advisory | FSD | 5 hr |
| Mar 13, 9:58 PM CDT | Dense Fog Advisory | FSD | 14 hr |
| Mar 15, 2:46 PM CDT | Wind Advisory | FSD | 28 hr |
| Mar 21, 3:37 PM CDT | Winter Storm Watch | FSD | 37 hr |
| Mar 22, 3:19 PM CDT | Winter Storm Warning | FSD | 40 hr |
| Mar 23, 7:15 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 5, 4:00 PM CDT | Wind Advisory | FSD | 22 hr |
| Apr 6, 2:53 PM CDT | Wind Advisory | FSD | 27 hr |
| Apr 24, 1:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 24, 2:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 24, 6:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 27, 9:56 AM CDT | River Flood Warning | FSD | 8 days |
| May 9, 2:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 13, 3:27 AM CDT | Freeze Warning | FSD | 30 hr |
| May 23, 1:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 23, 5:25 PM CDT | Flash Flood Warning | FSD | 4 hr |
| May 23, 5:29 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| May 23, 5:58 PM CDT | Flash Flood Warning | FSD | 4 hr |
| May 25, 8:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 25, 11:24 PM CDT | Severe Thunderstorm Warning | FSD | 51 min |
| May 25, 11:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 30, 9:49 AM CDT | River Flood Warning | FSD | 24 hr |
| May 30, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 9, 3:07 PM CDT | Heat Advisory | FSD | 54 hr |
| Jun 10, 10:03 PM CDT | Severe Thunderstorm Warning | FSD | 42 min |
| Jun 10, 10:44 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Jun 10, 11:15 PM CDT | Severe Thunderstorm Warning | FSD | 45 min |
| Jun 10, 11:53 PM CDT | Severe Thunderstorm Warning | FSD | 16 min |
| Jun 12, 3:36 AM CDT | Heat Advisory | FSD | 16 hr |
| Jun 14, 11:45 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 12:27 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Jun 14, 12:43 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 1:48 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Jun 14, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 17, 2:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 17, 3:06 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 6:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 17, 8:18 PM CDT | Severe Thunderstorm Warning | FSD | 42 min |
| Jun 17, 8:44 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Jun 17, 8:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 17, 9:44 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Jun 18, 3:14 AM CDT | Heat Advisory | FSD | 41 hr |
| Jun 21, 9:49 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Jun 21, 10:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 2:31 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 22, 4:43 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 25, 1:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 29, 5:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 5, 2:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 5, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 7:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 7, 1:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 7, 3:25 PM CDT | Tornado Warning | FSD | 16 min |
| Jul 7, 3:54 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 9, 3:07 PM CDT | Heat Advisory | FSD | 24 hr |
| Jul 10, 3:48 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 11, 3:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 11, 3:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 13, 6:49 AM CDT | Severe Thunderstorm Warning | FSD | 41 min |
| Jul 13, 8:09 AM CDT | Severe Thunderstorm Warning | FSD | 38 min |
| Jul 16, 6:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 16, 11:45 PM CDT | Severe Thunderstorm Warning | FSD | 30 min |
| Jul 17, 12:41 AM CDT | Severe Thunderstorm Warning | FSD | 34 min |
| Jul 18, 3:57 AM CDT | Excessive Heat Watch | FSD | 24 hr |
| Jul 19, 4:06 AM CDT | Excessive Heat Warning | FSD | 5 days |
| Aug 9, 2:40 PM CDT | Heat Advisory | FSD | 29 hr |
| Aug 11, 3:15 AM CDT | Severe Thunderstorm Warning | FSD | 30 min |
| Aug 11, 4:01 AM CDT | Flash Flood Watch | FSD | 18 hr |
| Aug 11, 12:37 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 3:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 6:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 16, 3:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 16, 7:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 16, 8:28 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Aug 16, 9:10 PM CDT | Severe Thunderstorm Warning | FSD | 50 min |
| Aug 16, 9:22 PM CDT | Severe Thunderstorm Warning | FSD | 38 min |
| Sep 4, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 5, 1:10 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 1:27 AM CDT | Severe Thunderstorm Warning | FSD | 48 min |
| Sep 7, 1:45 AM CDT | Flash Flood Warning | FSD | 4 hr |
| Sep 15, 1:40 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Sep 15, 1:58 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 15, 4:07 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Sep 15, 4:37 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Sep 15, 8:11 PM CDT | River Flood Warning | FSD | 5 days |
| Sep 20, 2:32 PM CDT | Flash Flood Watch | FSD | 44 hr |
| Oct 4, 6:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 6, 2:43 PM CDT | Frost Advisory | FSD | 18 hr |
| Oct 11, 2:59 PM CDT | Freeze Watch | FSD | 13 hr |
| Oct 12, 3:39 AM CDT | Freeze Warning | FSD | 29 hr |
| Oct 16, 3:48 PM CDT | Dense Fog Advisory | FSD | 19 hr |
| Nov 1, 6:10 AM CDT | Dense Fog Advisory | FSD | 3 hr |
| Nov 17, 3:34 AM CST | Winter Weather Advisory | FSD | 41 hr |
| Dec 9, 11:36 AM CST | Winter Weather Advisory | FSD | 43 hr |
| Dec 15, 11:35 AM CST | Winter Weather Advisory | FSD | 48 hr |
| Dec 16, 4:02 AM CST | Wind Chill Warning | FSD | 56 hr |
| Dec 18, 11:45 AM CST | Wind Chill Advisory | FSD | 11 hr |
| Dec 20, 8:31 PM CST | Wind Advisory | FSD | 21 hr |
| Dec 24, 12:00 AM CST | Dense Fog Advisory | FSD | 14 hr |
| Dec 24, 2:41 PM CST | Dense Fog Advisory | FSD | 13 hr |
| Dec 24, 11:26 PM CST | Winter Weather Advisory | FSD | 8 hr |
| Dec 25, 3:07 PM CST | Wind Advisory | FSD | 27 hr |
| Dec 25, 8:54 PM CST | High Wind Warning | FSD | 18 hr |
| Dec 25, 8:54 PM CST | Wind Advisory | FSD | 21 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 archive20152017
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.