Alert archive / Wyoming / Johnson County

Severe Thunderstorm Warnings in Johnson County, Wyoming

415 severe thunderstorm warnings since 1986. 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 since 1986. Tap one for its archive.

Severe Thunderstorm Warnings: 415
Busiest year: 201841 severe thunderstorm warnings
Average year: 12over 34 years on file

Over time

By year

Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.

The latest severe thunderstorm warnings

The most recent on file, newest first.

Issued	Product	Office	Lasted
Aug 22, 7:17 PM MDT	Severe Thunderstorm Warning	RIW	43 min
Jul 6, 8:04 PM MDT	Severe Thunderstorm Warning	RIW	26 min
Jun 27, 5:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	RIW	35 min
Jun 27, 5:48 PM MDT	Severe Thunderstorm Warning Considerable damage threat	RIW	31 min
Jun 27, 1:09 PM MDT	Severe Thunderstorm Warning	RIW	36 min
Jun 22, 1:59 PM MDT	Severe Thunderstorm Warning	RIW	22 min
Jun 22, 1:38 PM MDT	Severe Thunderstorm Warning	RIW	37 min
Jun 22, 1:34 PM MDT	Severe Thunderstorm Warning	RIW	26 min
Jun 20, 5:14 PM MDT	Severe Thunderstorm Warning Considerable damage threat	RIW	61 min
Jun 20, 4:29 PM MDT	Severe Thunderstorm Warning Considerable damage threat	RIW	46 min
Jun 20, 4:14 PM MDT	Severe Thunderstorm Warning	RIW	46 min
Jun 20, 3:46 PM MDT	Severe Thunderstorm Warning Considerable damage threat	RIW	44 min

Nearby

Alerts in force now Tornadoes on record Forecast The 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.