Hole In The Storm Clouds

This break in storm clouds shows a hint of blue as a developing supercell was advancing on this position on Cherry Avenue about .1 mile south of Highway 175 and about 2.8 miles west of the Onawa, Iowa exit on Interstate 29 around 5:50 PM, Saturday, April 9, 2011. In just a little over an hour several tornadoes would drop out of angry clouds formed in the western part of the state due to high atmospheric instability and wind shear. This observation position was a stopping point of about 20 minutes for our storm chase team to gauge the track of the forming severe weather.