Simplify the following text for a Grade 7 native English-speaking person.
Original: The 1944 Appalachians tornado outbreak was a deadly tornado outbreak that hit the Midwest and Middle Atlantic regions of the United States on June 22 â `` 23 , 1944 .
Simplified: The 1944 Appalachians tornado outbreak was a strong tornado outbreak . It hit the Midwest and Middle Atlantic United States on June 22 -- 23 , 1944 .