Most of the time I use GBTimelapse AutoRamp to capture a landscape time-lapse at sunset. But occasionally I get up early enough in the morning to do a sunrise.
A couple of weeks ago I was awakened at 3 AM by the sound of thunder. Lightning storms are rare in this part of California, but it sounded like a good storm was headed my way. The previous evening I'd been running some tests with my Canon 7D, so it was already set up in an upstairs window. I quickly fired up my computer with the hopes of capturing some lightning in a sunrise time-lapse.
Here's a demo showing how to set up a sunrise AutoRamp time-lapse, and the resulting video. I did manage to get a couple of good lightning bolts.
The strike you see in this frame knocked out power for a couple of minutes. GBTimelapse was running on a laptop so it was unaffected. However, the camera was running on AC power, so I did miss a couple of frames.