Alert archive / Iowa / Harrison County / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Harrison County, Iowa, 2026

40 severe thunderstorm warnings in 2026. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Harrison County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Severe Thunderstorm Warnings
40
Busiest month
April10 severe thunderstorm warnings
Busiest day
April 23, 20268 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
Mar 6, 8:32 PM CSTSevere Thunderstorm WarningOAX28 min
Apr 15, 10:53 AM CDTSevere Thunderstorm Warning Considerable damage threatOAX46 min
Apr 15, 11:24 AM CDTSevere Thunderstorm WarningOAX51 min
Apr 23, 1:34 PM CDTSevere Thunderstorm WarningOAX41 min
Apr 23, 2:05 PM CDTSevere Thunderstorm WarningOAX40 min
Apr 23, 2:22 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX53 min
Apr 23, 2:38 PM CDTSevere Thunderstorm WarningOAX52 min
Apr 23, 3:06 PM CDTSevere Thunderstorm WarningOAX39 min
Apr 23, 3:11 PM CDTSevere Thunderstorm WarningOAX49 min
Apr 23, 3:38 PM CDTSevere Thunderstorm WarningOAX67 min
Apr 23, 4:00 PM CDTSevere Thunderstorm WarningOAX60 min
May 15, 9:43 PM CDTSevere Thunderstorm WarningOAX47 min
May 15, 10:14 PM CDTSevere Thunderstorm WarningOAX34 min
May 15, 10:25 PM CDTSevere Thunderstorm WarningOAX11 min
May 17, 7:27 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX48 min
May 17, 8:00 PM CDTSevere Thunderstorm WarningOAX45 min
May 17, 8:11 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX64 min
May 17, 8:25 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX65 min
May 17, 8:42 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX33 min
May 17, 8:56 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX64 min
May 18, 7:29 PM CDTSevere Thunderstorm WarningOAX26 min
May 31, 11:00 PM CDTSevere Thunderstorm WarningOAX45 min
May 31, 11:36 PM CDTSevere Thunderstorm WarningOAX39 min
May 31, 11:50 PM CDTSevere Thunderstorm WarningOAX40 min
Jun 1, 12:28 AM CDTSevere Thunderstorm WarningOAX47 min
Jun 1, 12:45 AM CDTSevere Thunderstorm WarningOAX22 min
Jun 1, 1:06 AM CDTSevere Thunderstorm WarningOAX39 min
Jun 11, 5:46 AM CDTSevere Thunderstorm Warning Considerable damage threatOAX44 min
Jul 8, 6:31 PM CDTSevere Thunderstorm WarningOAX44 min
Jul 8, 8:08 PM CDTSevere Thunderstorm WarningOAX52 min
Jul 8, 8:32 PM CDTSevere Thunderstorm WarningOAX26 min
Jul 8, 8:46 PM CDTSevere Thunderstorm WarningOAX29 min
Jul 8, 8:53 PM CDTSevere Thunderstorm WarningOAX24 min
Jul 8, 8:59 PM CDTSevere Thunderstorm WarningOAX46 min
Jul 8, 9:42 PM CDTSevere Thunderstorm WarningOAX49 min
Aug 12, 5:14 AM CDTSevere Thunderstorm WarningOAX46 min
Aug 13, 4:27 AM CDTSevere Thunderstorm WarningOAX48 min
Sep 6, 3:51 PM CDTSevere Thunderstorm WarningOAX39 min
Sep 15, 12:38 AM CDTSevere Thunderstorm WarningOAX37 min
Sep 15, 12:54 AM CDTSevere Thunderstorm WarningOAX66 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 23, 20268severe thunderstorm warnings
  2. May 18, 20266severe thunderstorm warnings
  3. June 1, 20266severe thunderstorm warnings
  4. July 9, 20266severe thunderstorm warnings
  5. May 16, 20263severe thunderstorm warnings
  6. April 15, 20262severe thunderstorm warnings
  7. September 15, 20262severe thunderstorm warnings
  8. March 7, 20261severe thunderstorm warnings
  9. May 19, 20261severe thunderstorm warnings
  10. June 11, 20261severe thunderstorm warnings

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

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.