The document discusses extreme weather events like tornadoes and hurricanes. It describes how tornadoes form from thunderstorms and can range from weak F0 tornadoes to incredibly strong F5 tornadoes. The largest tornado on record was the 1925 Tri-State Tornado that traveled 219 miles across multiple states with winds over 300 mph. Tornadoes are most likely in the central US. Hurricanes form over warm ocean waters and can have winds up to 175 mph, with the strongest recorded being Hurricane Wilma. Hurricanes often impact the US east coast and Gulf Coast.

1. Extreme Weather By Heath Abell

13. Where is a tornado most likely to occur in the U.S.?