Alert archive / Iowa / O'Brien County
Weather alerts in O'Brien County, Iowa, 2021
96 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
O'Brien County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 96
- Warnings
- 25
- Watches
- 12
- Advisories
- 38
- Busiest month
- December15 alerts
- Busiest day
- December 15, 20218 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, 5:56 PM CST | Dense Fog Advisory | FSD | 21 hr |
| Jan 2, 2:53 PM CST | Dense Fog Advisory | FSD | 39 hr |
| Jan 7, 2:42 PM CST | Dense Fog Advisory | FSD | 20 hr |
| Jan 8, 2:30 PM CST | Dense Fog Advisory | FSD | 22 hr |
| Jan 13, 3:35 AM CST | Winter Storm Watch | FSD | 24 hr |
| Jan 13, 3:32 PM CST | High Wind Warning | FSD | 44 hr |
| Jan 14, 3:30 AM CST | Blizzard Warning | FSD | 39 hr |
| Jan 14, 8:44 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 15, 2:19 PM CST | Winter Weather Advisory | FSD | 8 hr |
| Jan 22, 4:05 AM CST | Winter Weather Advisory | FSD | 44 hr |
| Jan 29, 2:05 PM CST | Winter Weather Advisory | FSD | 34 hr |
| Feb 1, 11:39 PM CST | Dense Fog Advisory | FSD | 11 hr |
| Feb 3, 3:15 AM CST | Winter Weather Advisory | FSD | 33 hr |
| Feb 6, 3:03 AM CST | Wind Chill Advisory | FSD | 33 hr |
| Feb 8, 2:31 PM CST | Wind Chill Advisory | FSD | 18 hr |
| Feb 11, 2:45 PM CST | Wind Chill Advisory | FSD | 21 hr |
| Feb 12, 2:09 PM CST | Wind Chill Watch | FSD | 61 hr |
| Feb 12, 2:09 PM CST | Wind Chill Advisory | FSD | 22 hr |
| Feb 13, 3:35 AM CST | Wind Chill Warning | FSD | 3 days |
| Feb 20, 3:29 AM CST | Winter Weather Advisory | FSD | 36 hr |
| Feb 21, 8:24 PM CST | Dense Fog Advisory | FSD | 7 hr |
| Feb 27, 3:52 AM CST | Winter Weather Advisory | FSD | 29 hr |
| Mar 13, 3:24 AM CST | Winter Storm Watch | FSD | 24 hr |
| Mar 13, 3:18 PM CST | Wind Advisory | FSD | 26 hr |
| Mar 14, 4:03 AM CDT | Winter Storm Warning | FSD | 32 hr |
| Mar 14, 6:20 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 15, 1:50 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 21, 3:04 AM CDT | Wind Advisory | FSD | 12 hr |
| Mar 27, 3:31 PM CDT | Fire Weather Watch | FSD | 23 hr |
| Mar 28, 2:40 PM CDT | Wind Advisory | FSD | 30 hr |
| Mar 28, 2:47 PM CDT | Red Flag Warning | FSD | 30 hr |
| Mar 30, 10:59 AM CDT | Wind Advisory | FSD | 10 hr |
| Apr 2, 10:49 AM CDT | Red Flag Warning | FSD | 9 hr |
| Apr 5, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | 53 min |
| May 1, 3:09 AM CDT | Red Flag Warning | FSD | 16 hr |
| May 2, 4:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 10, 3:12 PM CDT | Frost Advisory | FSD | 17 hr |
| May 19, 1:59 AM CDT | Dense Fog Advisory | FSD | 7 hr |
| May 31, 2:46 AM CDT | Dense Fog Advisory | FSD | 6 hr |
| Jun 10, 3:31 AM CDT | Heat Advisory | FSD | 16 hr |
| Jun 16, 6:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 8:38 PM CDT | Severe Thunderstorm Warning | FSD | 37 min |
| Jul 5, 3:24 AM CDT | Heat Advisory | FSD | 17 hr |
| Jul 5, 5:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 7:57 PM CDT | Severe Thunderstorm Warning | FSD | 33 min |
| Jul 5, 8:24 PM CDT | Severe Thunderstorm Warning | FSD | 66 min |
| Jul 6, 2:01 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 6, 5:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 8, 9:33 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 9, 2:41 AM CDT | Mesoscale Discussion | SPC | 34 min |
| Jul 14, 7:02 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 3:11 AM CDT | Excessive Heat Watch | FSD | 35 hr |
| Jul 26, 3:11 AM CDT | Heat Advisory | FSD | 42 hr |
| Jul 27, 2:22 PM CDT | Heat Advisory | FSD | 31 hr |
| Jul 31, 1:02 AM CDT | Dense Fog Advisory | FSD | 8 hr |
| Aug 5, 9:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 8, 4:50 PM CDT | Severe Thunderstorm Warning | FSD | 55 min |
| Aug 8, 5:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 8, 5:26 PM CDT | Tornado Warning | FSD | 49 min |
| Aug 20, 1:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 20, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 26, 5:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 26, 8:03 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 26, 10:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 1:09 AM CDT | Severe Thunderstorm Warning | FSD | 51 min |
| Aug 27, 1:52 AM CDT | Severe Thunderstorm Warning | FSD | 68 min |
| Aug 28, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 28, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Sep 16, 6:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 17, 12:36 AM CDT | Severe Thunderstorm Warning | FSD | 54 min |
| Sep 17, 12:53 AM CDT | Mesoscale Discussion | SPC | 67 min |
| Sep 17, 1:11 AM CDT | Severe Thunderstorm Warning | FSD | 49 min |
| Sep 17, 1:23 AM CDT | Severe Thunderstorm Warning | FSD | 67 min |
| Oct 13, 2:53 AM CDT | Wind Advisory | FSD | 20 hr |
| Oct 15, 3:30 AM CDT | Frost Advisory | FSD | 30 hr |
| Oct 15, 3:00 PM CDT | Freeze Warning | FSD | 19 hr |
| Oct 20, 7:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Nov 4, 4:23 AM CDT | Dense Fog Advisory | FSD | 10 hr |
| Nov 10, 2:54 PM CST | Wind Advisory | FSD | 51 hr |
| Nov 11, 3:11 AM CST | Winter Weather Advisory | FSD | 33 hr |
| Nov 13, 5:00 PM CST | Wind Advisory | FSD | 10 hr |
| Dec 4, 3:11 PM CST | Wind Advisory | FSD | 35 hr |
| Dec 8, 3:31 AM CST | Winter Storm Watch | FSD | 32 hr |
| Dec 9, 11:23 AM CST | Winter Storm Warning | FSD | 40 hr |
| Dec 10, 12:27 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 14, 4:04 AM CST | High Wind Warning | FSD | 47 hr |
| Dec 15, 2:56 AM CST | Dense Fog Advisory | FSD | 6 hr |
| Dec 15, 12:28 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 15, 1:23 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 15, 3:55 PM CST | Mesoscale Discussion | SPC | 95 min |
| Dec 15, 4:42 PM CST | Tornado Warning | FSD | 33 min |
| Dec 15, 4:51 PM CST | Severe Thunderstorm Warning | FSD | 39 min |
| Dec 15, 5:15 PM CST | Tornado Warning | FSD | 30 min |
| Dec 15, 5:16 PM CST | Mesoscale Discussion | SPC | 119 min |
| Dec 15, 9:07 PM CST | Wind Advisory | FSD | 9 hr |
| Dec 26, 1:52 PM CST | Wind Advisory | FSD | 22 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 | 12 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 21 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Watch | 1 |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
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.