Alert archive / Iowa / Sioux County / 2021
Weather alerts in Sioux County, Iowa, August 2021
22 weather alerts in August 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 22
- Warnings
- 12
- Watches
- 3
- Advisories
- 0
- Busiest day
- August 27, 20216 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| Aug 5, 9:31 PM CDT | Severe Thunderstorm Warning | FSD | 44 min |
| Aug 5, 9:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 6, 1:06 AM CDT | Severe Thunderstorm Warning | FSD | 39 min |
| Aug 6, 1:36 AM CDT | Severe Thunderstorm Warning | FSD | 24 min |
| Aug 6, 11:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 1:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 20, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 25, 3:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| 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, 12:17 AM CDT | Severe Thunderstorm Warning | FSD | 28 min |
| Aug 27, 12:34 AM CDT | Severe Thunderstorm Warning | FSD | 41 min |
| Aug 27, 1:04 AM CDT | Tornado Warning | FSD | 26 min |
| Aug 27, 1:09 AM CDT | Severe Thunderstorm Warning | FSD | 51 min |
| Aug 28, 2:43 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 28, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 28, 4:23 PM CDT | Severe Thunderstorm Warning | FSD | 37 min |
| Aug 28, 5:00 PM CDT | Severe Thunderstorm Warning | FSD | 45 min |
| Aug 28, 8:52 PM CDT | Severe Thunderstorm Warning | FSD | 23 min |
| Aug 28, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Aug 30, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
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 | 11 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 7 |
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.