A total of 15 cm of snow is expected to hit Windsor Tuesday morning through the early morning Wednesday, Environment Canada reports in a weather warning updated Monday afternoon. 

A low-pressure system developing over the southern United States on Monday is expected to head towards southern Ontario, the national weather agency reported.

"Total snowfall amounts of 15 centimetres expected from Tuesday morning to early Wednesday morning due a low pressure system moving west to east and tracking just south of the regions. There may also be some local blowing snow with this storm system," the watch says. 

Snowfall could hit the region and make driving conditions quite poor.

"There could potentially be a swath, somewhere in southern Ontario near the lower Great Lakes, of maybe 10 to 20 cm, but it's a little too early to say where exactly that's going to happen," said Desjanelle Matthews, severe weather meteorologist with Environment Canada. "It could be significant amounts of snow, so that's why we wanted to give that heads up for Tuesday and Tuesday night."