Significant snowfall, freezing rain or rain possible Wednesday and Wednesday night for Brockville-Prescott, Gananoque-Mallorytown, Morrisburg-Long Sault.
Snow is expected to begin overnight or early Wednesday morning then change to rain or freezing rain or continue as snow. Total snowfall amounts of 5 to 15 cm are possible in areas where the precipitation falls primarily as snow.
There is uncertainty regarding the track of the low pressure system responsible for the precipitation. Any change in the track could drastically change snowfall amounts and precipitation types. Motorists should be prepared for poor winter driving conditions.
This precipitation is the result of a low pressure system from the central United States that is forecast to track over Eastern Ontario Wednesday night.