Some areas could see up to 35 cm of snow, hence the warnings across southern Ontario. Gusty winds will make for reduced visibility in blowing snow, even after the system has passed. Meteorologist Nadine Powell tells us when the snow arrives,

Southern Ontario, including the Greater Toronto Area, is expected to get hit with significant snowfall on Wednesday afternoon that will bring anywhere from 15 to 40 cm of snow.

Environment Canada says much of southern Ontario will see heavy snowfall tonight and some regions could see up to 40 centimetres of snow, while northern Ontario braces for extreme cold temperatures.

Environment Canada has issued a snowfall warning for Toronto, the GTA and surrounding areas ahead of a major winter storm expected on Wednesday.