Rain, freezing rain and snow will all be in the mix for southern Ontario as March comes to a close, according to Environment Canada.
A special weather statement was issued for for Windsor-Essex and Chatham-Kent Thursday, and meteorologist Geoff Coulson said as much as 50 mm of rain could fall on the region by Friday night.
"We've already seen a shot of some pretty significant rain," he said, adding 16 mm of precipitation was recorded at the Windsor Airport by noon.
A low pressure system from Texas is expected to move across the Great Lakes and drop freezing rain on the GTA and Golden Horseshoe with 5 to 10 cm of snow possible for the southern end of Georgian Bay.
Coulson said mixed snow and rain were reported in Lambton-County.
Environment Canada warned those on the road to travel carefully in areas where snow and ice are expected to form.