June 17, 2009 York County, NE, CB and Lightning

June 17th was the day of our Aurora, NE, tornado intercept.  As the parent supercell continued its trek eastward from Hamilton County to York County, we had a splendid view of its back side.  Lightning was frequent in and around the updraft tower, so most of my exposures caught at least some lightning.  I thought that there were enough quality images here to warrant a separate entry for June 17.

These images were taken from south of Aurora, looking east, from 9:45 to 10:20 p.m. CDT.  ISO settings ranged from 100 (early on) to 500, F-stops were primarily 2.8 to 4.0, and shutter speeds were mostly 4 to 8 seconds.