VOAVideo: Understanding How Tornadoes Work
On average, 800 tornadoes are reported in the United States each year SCIENCE IN THE NEWS
Red Cross: Video: Update from Missisippi and Alabama
Since March 31, there have been approximately 871 tornado reports in 26 states. These are eyewitness accounts and have not been confirmed by the National Weather Service. Emergency Management officials are reporting 354 fatalities and 2,679 injuries across seven states in April. Please donate to the American Red Cross--thanks!
