We don't get much interesting weather here in Northern California, so when I saw these clouds coming and drove to a good vantage point to get this clip. I used had a Canon T3i tethered to a Toshiba netbook computer running GBTimelapse in its AutoRamp mode (AutoRamp is a new feature in beta testing now). Time interval was 5 seconds.
I removed the flicker using GBDeflicker and made this video using Adobe Premiere Pro.
You can how much GBDeflicker improved the footage.