9GAG TV Watch this video to learn about the largest tornado ever known to have formed, the El Reno tornado in 2013.

9GAG TV Watch this video to learn about the largest tornado ever known to have formed, the El Reno tornado in 2013.

CBS News A tornado watch has also been issued for parts of Florida, Georgia and Mississippi, the National Weather Service says.

Howstuffworks To stay safe during a tornado, it's important to separate fact from fiction. Should you open windows during a storm? Is one corner of the basement safer than another? We answer those questions and more.

The Wall Street Journal Residents in central Indiana took shelter Wednesday evening after a tornado leveled a Starbucks in Kokomo without injuring anyone.

ABC News JUST IN: Aerial footage shows damage after tornado rips through Elmore City, Oklahoma. http://abcn.ws/1TAKtz3 Tornado watch in effect for parts of Oklahoma, Arkansas and NE Texas until 9 p.m. CT.

MSN News Parts of northern Indiana and southern Michigan are under a tornado watch.

Aaron Rigsby Tornado exploding propane tanks https://www.youtube.com/watch?v=1T232wibP20

BuzzFeed News Dozens of counties across multiple states are on tornado watch today.

Łukasz Straczyński huge tornado in Germany - https://www.youtube.com/watch?v=WyjijKt6DwU