25 Minutes in the life of a Thunder Head
I shot one frame each minute to show how much a thunder head changes each minute. The larger, flatter cloud in the background moves southeast and at a much higher elevation. The cloud in the foreground ebbs and grows over the time frame. Shot Sunday July 25, 04 east of Viejas Mountain.
Those apparently static clouds you see often to the east have a lot of activity in a minute. Some frames show dramatic changes over that time. The puff in the upper center left completely disappears within 2 frames.
Click to See Animation:
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If it doesn't animate on your system, right click and save the picture and double click on it.