Snow spreading east

Steady wet snow has started in Kemptville at 8pm and is overspreading eastern Ontario. The snow will continue to increase in aerial coverage and intensity over the course of the evening and into the overnight with 5-10cm expected in most regions. The upper Ottawa Valley and the Laurentians could see close to 20cm by the end of Tuesday. It will be a mixed precipitation event along the St. Lawrence River with less accumulations - under 5cm - expected. Roads will become slippery in all regions with lowering visibilities tonight. Winds are gusting out of the Northeast and will increase in speed to over 50km/h on Tuesday. Low pressure over the lower Great Lakes will move into northern New York overnight, and then slowly north into Quebec.