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A tornado that has touched the ground is called a funnel cloud.
When a tornado first reaches the ground and becomes a tornado it is said to have touched down.
The Tri-State tornado had the longest damage path. 219 miles
Yes. An EF0 tornado touched down in Philadelphia, injuring two people.
The most recent tornado in Texas was an EF1 that touched down near Clarksville, Texas in Red River County on March 8, 2011.