Alert archive / Iowa / Johnson County / Mesoscale Discussions
Mesoscale Discussions in Johnson County, Iowa, 2011
29 mesoscale discussions in 2011. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.
Johnson County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Mesoscale Discussions
- 29
- Busiest month
- May7 mesoscale discussions
- Busiest day
- May 22, 20113 mesoscale discussions
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 |
|---|---|---|---|
| Feb 1, 10:36 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 1, 3:36 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 27, 5:50 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 20, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 3, 4:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 3, 7:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 10, 5:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 11, 8:09 AM CDT | Mesoscale Discussion | SPC | 66 min |
| May 11, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 4:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 10:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 24, 1:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 29, 8:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 5, 5:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 8, 3:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 8, 8:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 9, 1:44 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 4:08 AM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 21, 1:25 AM CDT | Mesoscale Discussion | SPC | 35 min |
| Jul 10, 2:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 5:07 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 22, 7:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Aug 2, 12:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 8, 1:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 23, 12:45 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 2:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 2, 10:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Sep 2, 11:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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. Warning verification from the Mesonet's Cow. Rebuilt daily.