Alert archive / Iowa / Red Flag Warnings
Red Flag Warnings in Iowa, 2011
9 red flag warnings in 2011. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Red Flag Warnings
- 9
- Busiest month
- May4 red flag warnings
- Busiest day
- May 1, 20112 red flag warnings
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 | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 1:48 PM CDT | Red Flag Warning | FSD | 4 hr | |
| May 1, 11:25 AM CDT | Red Flag Warning | FSD | 8 hr | |
| May 1, 11:58 AM CDT | Red Flag Warning | OAX | Harrison, Monona, Pottawattamie, Shelby | 4 hr |
| May 4, 10:16 AM CDT | Red Flag Warning | FSD | 9 hr | |
| May 6, 3:11 AM CDT | Red Flag Warning | FSD | 15 hr | |
| Oct 3, 2:14 PM CDT | Red Flag Warning | FSD | 3 days | |
| Oct 4, 3:45 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 15 hr |
| Oct 5, 3:35 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 15 hr |
| Nov 3, 2:45 PM CDT | Red Flag Warning | FSD | 27 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.