Weather Movie, Mars South Polar Region, March-April 2009 NASA

This movie shows the southern high-latitudes region of Mars from March 19 through April 14, 2009, a period when regional dust storms occurred along the retreating edge of carbon-dioxide frost in the seasonal south polar cap. Compared with a full-hemisphere view, this view shows more details of where the dust clouds formed and how they moved around the planet.
The movie combines hundreds of images from the Mars Color Imager (MARCI) camera on NASA’s Mars Reconnaissance Orbiter.