The heaviest lake effect snow should be done by Tuesday morning.
ERIE, Pa. (WPVI) -- Lake effect snow is slamming the Great Lakes, with seven states from Wisconsin to New York under snow alerts on Monday.
So far, snow totals have reached 65 inches in Barnes Corners, New York; 30 inches in Erie, Pennsylvania; 56 inches in Saybrook, Ohio; and 42 inches in Gaylord, Michigan.
A lake-effect storm already dumped more than two feet of snow across Erie County, Pennsylvania, over the weekend.
The heaviest lake effect snow should be done by Tuesday morning for most of the Great Lakes.
Governor Josh Shapiro signed a disaster declaration and called in the National Guard to assist.
The Pennsylvania State Police responded to more than 200 traffic incidents between Friday and Saturday alone, Shapiro said.
"At the county's request, I've called in the Pennsylvania National Guard -- who are now on the ground -- to help any stranded drivers and make sure emergency responders can get to folks who need them," Shapiro said in a statement.
Erie County, Pennsylvania, Executive Brenton Davis said the local disaster emergency will stay in effect until the middle of this week.
Davis said county buildings, including courthouses, in Erie County will be closed on Monday and Tuesday and that officials are advising school districts to remain closed, as well. He said residents should minimize travel.
Gaylord, Michigan, picked up 24.8 inches of snow Friday, marking its single snowiest calendar day on record and shattering its previous record of 17 inches on March 9, 1942.