March 9, 2010
1917 Mattoon tornado outbreak – SKYWARN ONLINE
On the right of the center there ie the explosive action due to the reduced pressure on the out-side of the buildings, the eastward component of the counter-clockwise wind of the tornado (probably over 400 miles per hour), …
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1917 Mattoon tornado outbreak – SKYWARN ONLINE
Filed under Tornadoes by on Mar 9th, 2010. 
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