The alert covers areas from the shores of Lake Huron east into Quebec. Further north, communities including Huntsville, Ottawa and Sudbury are under a more severe winter storm warning with up to 30 cm of snow possible.

Environment Canada says snow will start Tuesday morning. In Northern Wellington County 10 to 15 cm of is forecast with higher amounts possible in some areas. Kitchener is expected to get 5 to 10 cm.

Snow may be heavy at times with a risk of freezing rain, the weather agency warns.

“Difficult travel conditions will be likely once the snow arrives,” Environment Canada says.

Precipitation will change to rain Tuesday night as temperatures rise above the freezing mark.

In Waterloo Region it appears the heaviest snow will be during the morning commute, Environment Canada says.

In Northern Wellington County, the worst travel conditions are forecast for later Tuesday and Tuesday night.

Snowfall warnings and winter weather travel advisories may be issued as the storm moves closer.

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