I have been playing with keeping the still camera taking long exposure shots and then animating those sequentually. This day I recorded clouds/lightning about 1/2 way between Burlington and Wray on 385 on June 1, 2009.  The cloud color was outstanding as the sun went down for the evening.   The storm was moving north straight towards me so I ended up getting overrun from the storm and had to put the camera away.

View the Lightning Open Exposure Time Lapse Experiment.