Periods of snow are forecast to start overnight in western Cape Breton before a winter wallop moves into the rest of the island and part of mainland Nova Scotia on Sunday. 

Environment Canada has issued a winter storm warning for Inverness and Victoria counties that could see up to 30 centimetres of snow, with possibly 60 centimetres in the Cape Breton Highlands by Monday night. 

The rest of the island could see up to 15 centimetres and is under a special weather statement. Environment Canada has…