Alert archive / Iowa / Johnson County / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Johnson County, Iowa, 2012

15 severe thunderstorm warnings in 2012. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Johnson County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Severe Thunderstorm Warnings
15
Busiest month
June4 severe thunderstorm warnings
Busiest day
April 15, 20122 severe thunderstorm 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.

IssuedProductOfficeLasted
Apr 14, 9:14 PM CDTSevere Thunderstorm WarningDVN61 min
Apr 14, 9:38 PM CDTSevere Thunderstorm WarningDVN55 min
May 2, 4:26 AM CDTSevere Thunderstorm WarningDVN49 min
May 3, 8:40 PM CDTSevere Thunderstorm WarningDVN35 min
Jun 16, 5:13 PM CDTSevere Thunderstorm WarningDVN47 min
Jun 29, 4:33 PM CDTSevere Thunderstorm WarningDVN72 min
Jun 29, 5:24 PM CDTSevere Thunderstorm WarningDVN66 min
Jun 29, 8:22 PM CDTSevere Thunderstorm WarningDVN38 min
Jul 25, 10:22 PM CDTSevere Thunderstorm WarningDVN53 min
Jul 25, 10:56 PM CDTSevere Thunderstorm WarningDVN64 min
Aug 4, 12:05 PM CDTSevere Thunderstorm WarningDVN55 min
Aug 4, 12:38 PM CDTSevere Thunderstorm WarningDVN67 min
Sep 5, 3:41 AM CDTSevere Thunderstorm WarningDVN64 min
Sep 7, 1:51 AM CDTSevere Thunderstorm WarningDVN39 min
Sep 7, 3:56 AM CDTSevere Thunderstorm WarningDVN34 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 15, 20122severe thunderstorm warnings
  2. June 29, 20122severe thunderstorm warnings
  3. July 26, 20122severe thunderstorm warnings
  4. August 4, 20122severe thunderstorm warnings
  5. September 7, 20122severe thunderstorm warnings
  6. May 2, 20121severe thunderstorm warnings
  7. May 4, 20121severe thunderstorm warnings
  8. June 16, 20121severe thunderstorm warnings
  9. June 30, 20121severe thunderstorm warnings
  10. September 5, 20121severe thunderstorm warnings

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20112013

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.