The storm continued to grow, and assumed an extremely impressive appearance. We are looking northeast from about 20 miles.

Photograph by: NSSL

Was the storm really a supercell? Doppler Radar confirmed a mesocyclone. A storm chase team, looking northwest from about 10 miles, took this photograph. Note the circular banding wrapping around the low levels of the updraft.

Photograph by: NSSL

Again, this is visually suggestive of the rotation that Doppler Radar was indicating. The storm produced large hail and at least one tornado after this photograph was taken.

supercell lt-analysis

Terms for using data resources. CD-ROM available. Credits and Acknowledgments for WW2010. Department of Atmospheric Sciences (DAS) at the University of Illinois at Urbana-Champaign.

Wind Shear