A Long Island mall was evacuated Monday after a rainstorm following three feet of snow from Winter Storm Nemo caused major roof damage, police told The Wall Street Journal.

Smith Haven Mall in Suffolk County, Long Island was evacuated by 4 p.m. after large leaks in the roof were found in more than a dozen stores and officials worried the roof could collapse.

"[It was] almost as if there was an open ceiling and it was raining," Smithtown Building Department Director John Bongino said about one of the stores.

Paul Llobell, deputy fire coordinator for Suffolk County, said it took an hour to evacuate the 140-store mall, one of the biggest on Long Island.

Fire and police from 15 departments in Suffolk County reported to the evacuation.

According to Bongino, the proprietors of the Smith Haven Mall will need a structural engineer from the Smithtown Building Department to determine when it is safe to reopen.

Winter Storm Nemo blanketed Long Island with over 30 inches of snow. Five-foot-high snow drifts trapped 42 cars on the Nesconset Highway according to the Daily News. Some of the motorists trapped on Friday night didn't make it home until Saturday afternoon.

"The snow kept piling, and we got stuck - all of us," Priscilla Arena said after an Army canvas truck reached her SUV, the paper reports.

Thinking she didn't have much time left, Arena wrote a farewell note to her family on loose-leaf paper.

"It made for a heck of a night," said MTA motorman Lenny Deszcz, 49.