Just days after digging out from a deadly snow storm, police are once again warning motorists to be careful on the roads.
"A Colorado low is bringing a messy mix to parts of Ontario through Tuesday morning," says Monica Vaswani, a meteorologist at The Weather Network.
A variety of precipitation types are possible Monday, including a period of freezing rain for parts of central and eastern Ontario.
"Freezing rain and ice pellets could persist in the Ottawa Valley for a prolonged period of time," says Vaswani. "And ahead of this line will be snow stretching from northwestern Ontario through the Nickelbelt and into eastern Ontario."
The weather and poor road conditions prompted several school bus cancellations across the region early Monday.
In the Greater Toronto Area, rain and melting snow covered some Toronto streets with water.
Officials were forced to close parts of the Gardiner Expressway and Don Valley Parkway due to flooding.
Light rain, drizzle or foggy conditions are expected to persist through the afternoon and evening hours.
"Once the rain tapers off and the cold front slides through, there is a second wave of rain/snow mixing possible in southern Ontario, which could then transition into snow for the evening commute as the temperature drops."
Vaswani adds that only a couple of centimetres should fall in the GTA, a far cry from last week's snowstorm, which was responsible for at least five deaths as it passed through Ontario and Quebec.
"The main concern with this low however, is not that it's especially potent, but rather that it will bring rain and/or freezing rain on top of the snowpacks that are currently present in southern Ontario," warns Vaswani.