A Snow Squall Warning remains in effect for Exeter, Goderich, Bluewater, and southern Huron County. Snow squalls coming off Lake Huron are expected to continue through today.
Environment Canada says another 10 to 15 centimetres of snow could fall in some areas.
The heavy snow band is expected to move east of London later this afternoon. Until then, visibility may drop to near zero at times, and some roads could be closed.
Drivers are asked to be careful and be ready for quickly changing and dangerous travel conditions.
