Meteorology: Natural Hazards -- Earth Observatory (great pics)

"Earth scientists around the world use NASA satellite imagery to better understand the causes and effects of natural hazards. The goal in sharing these images is to help people visualize where and when natural hazards occur, and to help mitigate their effects. All images in this section are freely available to the public for re-use or re-publication..." - from the website. <http://earthobservatory.nasa.gov/NaturalHazards/>