MONTREAL — A major storm that arrived in northern Ontario on Wednesday is forecast to bring significant snow to the province and to northern Quebec over the coming days — just in time for Environment Canada’s new colour-coded weather alert system.

The storm, which originated in the United States, will bring heavy snow, strong winds and lake effect snow activity, which occurs when cold air moves over warmer water, Environment Canada meteorologist Gerald Cheng said Wednesday.

Cheng, a warning preparedness meteorologist, said between 30 and 60 centimetres of snow is forecast in northeastern Ontario through Friday, while 10-20 cm is expected in northwestern Ontario, before the system moves through a large swath of northern Quebec.

The area of Quebec expected to be affected stretches from Wa

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