A wall at Foundry Centre Apartments partially collapsed during a Wednesday night storm, according to the Baltimore County Fire Department.
Thursday afternoon, workers tried to hold down a large blue tarp blowing in the wind on the side of a three-story apartment building, exposing a gaping hole in the wall two stories high.
A call to the unit block of Garrison View Road was dispatched at 6:26 p.m. The storm damaged the building and a tree. No injuries were reported, Baltimore County Fire Department spokeswoman Elise Armacost said.
Fire commanders declared the building unsafe, Armacost said.
Officials initially said the damage was caused by lightning, but later Armacost said it was more likely to have been caused by wind, possibly a microburst.