In DeKalb County , some 60 miles west of Chicago , straight-line winds downed power lines , and some large trees appeared to be damaged , Chief Deputy Gary Dumdie of the country sheriff 's department said . NEW : The mid-Atlantic will most likely have severe weather Thursday . NEW : Trees and power lines are downed west of Chicago . -- A tornado touched down in the southern part of Oklahoma, killing one person. Tornado watches extend as far east as Pennsylvania , West Virginia .
NEW : The mid-Atlantic will most likely have severe weather Thursday . NEW : Trees and power lines are downed west of Chicago . -- A tornado touched down in the southern part of Oklahoma, killing one person. Tornado watches extend as far east as Pennsylvania , West Virginia .