A special weather statement is in effect for Prescott, Brockville, Gananoque, Mallorytown, Merrickville, Wolford, Kemptville, Westport, and Charleston Lake.
A winter storm will be tracking its way through southern Ontario this week, with 10 to 20 centimetres of snow hitting the Leeds and Grenville area by Wednesday morning.
Environment Canada remains uncertain of exact snowfall amounts though, depending on the course the system takes.
The weather service also warns that strong winds during the storm could cause blowing snow and low visibility.