Alert archive / Iowa / Sioux County
Weather alerts in Sioux County, Iowa, 2019
159 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 159
- Warnings
- 69
- Watches
- 21
- Advisories
- 47
- Busiest month
- July38 alerts
- Busiest day
- March 13, 20199 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 7, 2:44 PM CST | Wind Advisory | FSD | 30 hr |
| Jan 16, 3:00 PM CST | Winter Weather Advisory | FSD | 57 hr |
| Jan 17, 2:29 PM CST | Winter Storm Warning | FSD | 34 hr |
| Jan 21, 3:26 AM CST | Winter Weather Advisory | FSD | 35 hr |
| Jan 23, 2:27 PM CST | Wind Chill Advisory | FSD | 43 hr |
| Jan 26, 2:29 PM CST | Winter Weather Advisory | FSD | 46 hr |
| Jan 27, 3:34 AM CST | Wind Chill Watch | FSD | 24 hr |
| Jan 27, 3:48 AM CST | High Wind Warning | FSD | 26 hr |
| Jan 27, 3:48 AM CST | Wind Advisory | FSD | 32 hr |
| Jan 28, 3:34 AM CST | Wind Chill Warning | FSD | 3 days |
| Jan 28, 3:34 AM CST | Wind Chill Advisory | FSD | 35 hr |
| Jan 28, 3:34 AM CST | Wind Chill Advisory | FSD | 3 days |
| Feb 2, 10:28 PM CST | Dense Fog Advisory | FSD | 15 hr |
| Feb 3, 3:43 AM CST | Winter Weather Advisory | FSD | 26 hr |
| Feb 5, 3:25 PM CST | Winter Weather Advisory | FSD | 57 hr |
| Feb 6, 1:43 PM CST | Blizzard Warning | FSD | 34 hr |
| Feb 7, 3:19 AM CST | Wind Chill Advisory | FSD | 54 hr |
| Feb 10, 2:54 PM CST | Winter Weather Advisory | FSD | 39 hr |
| Feb 12, 10:36 AM CST | Winter Weather Advisory | FSD | 10 hr |
| Feb 14, 3:40 AM CST | Wind Chill Advisory | FSD | 29 hr |
| Feb 15, 2:55 PM CST | Winter Weather Advisory | FSD | 51 hr |
| Feb 19, 4:07 AM CST | Winter Storm Warning | FSD | 35 hr |
| Feb 21, 3:52 AM CST | Winter Weather Advisory | FSD | 3 days |
| Feb 22, 3:26 PM CST | Blizzard Warning | FSD | 51 hr |
| Mar 2, 3:59 AM CST | Wind Chill Advisory | FSD | 56 hr |
| Mar 8, 3:16 PM CST | Winter Weather Advisory | FSD | 38 hr |
| Mar 9, 5:05 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 11, 3:03 PM CDT | Winter Storm Watch | FSD | 49 hr |
| Mar 11, 3:13 PM CDT | Flood Watch | FSD | 72 hr |
| Mar 12, 3:26 PM CDT | River Flood Watch | FSD | 23 days |
| Mar 12, 3:26 PM CDT | River Flood Watch | FSD | 4 days |
| Mar 12, 3:26 PM CDT | River Flood Watch | FSD | 3 days |
| Mar 12, 3:26 PM CDT | River Flood Watch | FSD | 5 days |
| Mar 12, 5:41 PM CDT | Dense Fog Advisory | FSD | 19 hr |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | 5 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | 58 hr |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | 8 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | 90 days |
| Mar 13, 12:22 PM CDT | River Flood Warning | FSD | 21 days |
| Mar 13, 12:55 PM CDT | Areal Flood Warning | FSD | 12 hr |
| Mar 13, 4:03 PM CDT | Winter Weather Advisory | FSD | 27 hr |
| Mar 13, 4:06 PM CDT | Wind Advisory | FSD | 36 hr |
| Mar 13, 6:42 PM CDT | Dense Fog Advisory | FSD | 12 hr |
| Mar 13, 7:57 PM CDT | River Flood Warning | FSD | 67 days |
| Mar 13, 8:27 PM CDT | Areal Flood Warning | FSD | 21 hr |
| Mar 14, 2:18 AM CDT | Areal Flood Warning | FSD | 18 hr |
| Mar 14, 5:25 PM CDT | Areal Flood Warning | FSD | 24 hr |
| Mar 14, 8:54 PM CDT | Areal Flood Warning | FSD | 12 hr |
| Mar 15, 9:46 PM CDT | River Flood Warning | FSD | 82 days |
| Apr 4, 10:24 PM CDT | Dense Fog Advisory | FSD | 12 hr |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | 10 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | 5 days |
| Apr 10, 3:24 PM CDT | Wind Advisory | FSD | 22 hr |
| Apr 11, 2:34 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| May 4, 3:44 AM CDT | Dense Fog Advisory | FSD | 5 hr |
| May 20, 2:58 PM CDT | Wind Advisory | FSD | 32 hr |
| May 22, 6:37 AM CDT | River Flood Warning | FSD | 21 days |
| May 27, 2:47 PM CDT | River Flood Warning | FSD | 21 days |
| May 27, 2:58 PM CDT | River Flood Warning | FSD | 68 hr |
| May 27, 9:00 PM CDT | River Flood Warning | FSD | 58 hr |
| May 28, 7:45 AM CDT | River Flood Warning | FSD | 6 hr |
| Jun 15, 12:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 15, 1:21 PM CDT | Severe Thunderstorm Warning | FSD | 39 min |
| Jun 16, 2:21 AM CDT | Dense Fog Advisory | FSD | 8 hr |
| Jun 27, 4:01 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 27, 8:22 AM CDT | Severe Thunderstorm Warning | FSD | 23 min |
| Jun 27, 8:40 AM CDT | Severe Thunderstorm Warning | FSD | 50 min |
| Jun 27, 8:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 27, 9:14 AM CDT | Flash Flood Warning | FSD | 3 hr |
| Jun 27, 12:36 PM CDT | River Flood Warning | FSD | 4 days |
| Jun 27, 3:15 PM CDT | Heat Advisory | FSD | 29 hr |
| Jun 28, 2:02 PM CDT | Heat Advisory | FSD | 31 hr |
| Jun 29, 11:59 AM CDT | Excessive Heat Warning | FSD | 9 hr |
| Jun 29, 3:18 PM CDT | Heat Advisory | FSD | 30 hr |
| Jul 1, 1:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 1, 3:14 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 1, 4:16 PM CDT | Flash Flood Watch | FSD | 9 hr |
| Jul 1, 5:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 7:16 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Jul 1, 8:17 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Jul 1, 11:01 PM CDT | River Flood Warning | FSD | 21 days |
| Jul 1, 11:01 PM CDT | River Flood Warning | FSD | 22 hr |
| Jul 2, 3:46 AM CDT | River Flood Warning | FSD | 48 hr |
| Jul 2, 7:40 AM CDT | River Flood Warning | FSD | 7 days |
| Jul 9, 10:13 PM CDT | River Flood Warning | FSD | 5 days |
| Jul 10, 6:19 AM CDT | River Flood Warning | FSD | 19 hr |
| Jul 10, 4:38 PM CDT | River Flood Warning | FSD | 21 days |
| Jul 12, 2:54 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| Jul 12, 3:14 PM CDT | Severe Thunderstorm Warning | FSD | 31 min |
| Jul 12, 3:28 PM CDT | Severe Thunderstorm Warning | FSD | 12 min |
| Jul 14, 3:33 PM CDT | Heat Advisory | FSD | 29 hr |
| Jul 15, 8:33 AM CDT | River Flood Warning | FSD | 11 days |
| Jul 15, 3:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 15, 3:38 PM CDT | Excessive Heat Watch | FSD | 50 hr |
| Jul 17, 4:07 AM CDT | Excessive Heat Warning | FSD | 66 hr |
| Jul 17, 4:07 AM CDT | Heat Advisory | FSD | 9 hr |
| Jul 17, 4:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 17, 4:48 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 17, 6:54 AM CDT | Severe Thunderstorm Warning | FSD | 66 min |
| Jul 17, 7:27 AM CDT | Severe Thunderstorm Warning | FSD | 48 min |
| Jul 17, 9:09 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 17, 9:56 AM CDT | River Flood Warning | FSD | 21 days |
| Jul 17, 5:19 PM CDT | Heat Advisory | FSD | 28 hr |
| Jul 17, 7:41 PM CDT | River Flood Warning | FSD | 72 hr |
| Jul 20, 5:51 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 20, 7:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 20, 8:15 AM CDT | Severe Thunderstorm Warning | FSD | 30 min |
| Jul 20, 8:39 AM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| Jul 20, 9:02 AM CDT | Severe Thunderstorm Warning | FSD | 43 min |
| Jul 21, 10:10 AM CDT | River Flood Warning | FSD | 21 days |
| Jul 28, 7:27 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 28, 9:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 9, 6:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 2:21 AM CDT | Dense Fog Advisory | FSD | 7 hr |
| Aug 15, 7:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 17, 5:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 6:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 17, 8:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 17, 10:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 17, 10:46 PM CDT | Severe Thunderstorm Warning | FSD | 44 min |
| Aug 17, 11:17 PM CDT | Severe Thunderstorm Warning | FSD | 43 min |
| Aug 18, 12:00 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 19, 11:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 19, 11:56 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 20, 2:01 AM CDT | Severe Thunderstorm Warning | FSD | 44 min |
| Aug 20, 3:08 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 10, 8:33 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 10, 11:13 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Sep 10, 11:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Sep 10, 11:59 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Sep 11, 12:44 AM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Sep 11, 1:03 AM CDT | Flash Flood Warning | FSD | 6 hr |
| Sep 11, 1:25 AM CDT | Severe Thunderstorm Warning | FSD | 65 min |
| Sep 11, 4:07 AM CDT | Flash Flood Watch | FSD | 26 hr |
| Sep 11, 9:10 AM CDT | River Flood Warning | FSD | 16 days |
| Sep 12, 7:14 AM CDT | River Flood Warning | FSD | 21 days |
| Sep 12, 11:32 AM CDT | River Flood Warning | FSD | 21 days |
| Sep 13, 1:36 AM CDT | River Flood Warning | FSD | 3 days |
| Sep 15, 3:19 AM CDT | Dense Fog Advisory | FSD | 9 hr |
| Sep 21, 1:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 24, 4:43 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 3, 10:26 AM CDT | River Flood Warning | FSD | 7 days |
| Oct 3, 3:19 PM CDT | Frost Advisory | FSD | 18 hr |
| Oct 12, 9:55 AM CDT | Wind Advisory | FSD | 9 hr |
| Oct 20, 9:20 PM CDT | Wind Advisory | FSD | 43 hr |
| Oct 21, 4:03 AM CDT | High Wind Warning | FSD | 24 hr |
| Oct 21, 11:40 AM CDT | Wind Advisory | FSD | 4 hr |
| Nov 24, 2:01 PM CST | Winter Storm Watch | FSD | 25 hr |
| Nov 25, 4:05 AM CST | Winter Storm Warning | FSD | 56 hr |
| Nov 26, 5:23 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 27, 5:56 PM CST | Winter Weather Advisory | FSD | 4 days |
| Nov 29, 11:52 AM CST | Winter Weather Advisory | FSD | 18 hr |
| Dec 8, 12:21 PM CST | Dense Fog Advisory | FSD | 15 hr |
| Dec 17, 1:48 AM CST | Dense Fog Advisory | FSD | 4 hr |
| Dec 24, 2:24 PM CST | Dense Fog Advisory | FSD | 34 hr |
| Dec 27, 3:18 PM CST | Winter Weather Advisory | FSD | 3 days |
| Dec 28, 3:41 AM CST | Winter Weather Advisory | FSD | 68 hr |
| Dec 28, 10:10 AM CST | River Flood Warning | FSD | 4 days |
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 archive20182020
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.