Alert archive / Iowa / Sioux County
Red Flag Warnings in Sioux County, Iowa
62 red flag warnings since 1986. An alert counts here when it covered this county. The archive of red flag warnings reaches back to 2005.
Sioux County and its neighbors
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Red Flag Warnings
- 62
- Busiest year
- 202213 red flag warnings
- Average year
- 7over 9 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
The latest red flag warnings
The most recent on file, newest first.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 13, 1:54 PM CDT | Red Flag Warning | FSD | 30 hr |
| May 11, 3:07 PM CDT | Red Flag Warning | FSD | 30 hr |
| Apr 21, 12:54 PM CDT | Red Flag Warning | FSD | 31 hr |
| Apr 15, 12:28 PM CDT | Red Flag Warning | FSD | 32 hr |
| Apr 11, 1:52 PM CDT | Red Flag Warning | FSD | 29 hr |
| Mar 27, 11:17 AM CDT | Red Flag Warning | FSD | 34 hr |
| Mar 11, 8:50 PM CDT | Red Flag Warning | FSD | 23 hr |
| Feb 26, 9:28 PM CST | Red Flag Warning | FSD | 21 hr |
| Feb 17, 10:06 PM CST | Red Flag Warning | FSD | 20 hr |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive
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.