Incredible Weather - Image galleries of weather phenomena in Canada as well as tools for chasing tornadoes on the internet. Site in both English and French.

The National Severe Storms Laboratory is one of NOAA's internationally known Environmental Research Laboratories, leading the way in investigations of all aspects of severe weather. Headquartered in Norman OK with staff in Colorado, Nevada, Washington, Utah, and Wisconsin.

images of clouds - Collection of photographs of cloud formations, organized according to standard cloud classifications.