Monday's morning commute across southern Ontario was a dangerous one to say the least.
Snow, followed by freezing rain and ice pellets resulted in slick road conditions and several accidents throughout the day.
CAA reported more than 1000 calls by 10 am and over 160 flights were cancelled at Toronto's Pearson International Airport Monday morning.
"After a messy Sunday night and Monday morning in southern Ontario, a second Colorado Low is bringing another moisture-laden mix," says Monica Vaswani, a meteorologist at The Weather Network. "For Tuesday, the risk for freezing rain will be through the Nickel Belt into southeastern Ontario and southern Quebec."
Most areas in northern and eastern Ontario will receive between 1-3 mm of freezing rain, with higher amounts near 5 mm possible over the Ottawa Valley.
That same low is joining forces with another system from the Prairies, which could also bring up to 20 cm of snow to parts of northern Ontario through Wednesday.
The wintery weather and icy road conditions have prompted several school boards across the region to cancel buses Tuesday.
In southern Ontario, drivers can expect some foggy and misty conditions as the warm air moves over the snow that has fallen.
Environment Canada warns of locally dense fog with visibilities near zero at times on Tuesday.
"There is also a slight risk for non-severe thunderstorms stretching from southwestern Ontario through to the Greater Toronto Area in the afternoon and evening hours," says Vaswani. "The risk is consistent with the rising temperatures."
Temperatures are forecast to be near record breaking for most of southern Ontario Tuesday and Wednesday.
"Then a third low will pick up where the second low leaves off early Wednesday, bringing mainly rain and more mild air into the region," says Vaswani.
The risk of freezing rain will have passed, but up to 60 mm of rain is forecast in the hardest hit areas through Wednesday.
Officials are warning homeowners to be vigilant as these kinds of systems can promote flooding. Snow followed by heavy rain can cause rapid melting and blocked sewers.
Tune in to The Weather Network on TV for regular updates. You can also visit the Alerts section of the website to keep on top of watches and warnings across the country.