Polar Vortex set to move south

Sounds scary doesn't it. It should! The coldest air of the season is set to move into Ontario and New York this week. It is already having an effect on our weather as snow squalls developed in the southwest flow ahead of the polar front. 5-10cm of snow fell quickly in a stretch along the 401 from Belleville to Brockville today. Roads are slick and cars are in the ditch.

Further south in New York State, Lake Effect Snow advisories have been posted for St. Lawrence, Franklin and Jefferson Counties. 10-15cm of snow may fall in those locations. Gusty winds and dropping temperatures will occur as well. As the front approaches our area overnight, a shot of 5cm or so of snow may occur in Kemptville and the 416 corridor. Once the front passes very cold arctic air will surge south with temperatures dropping to -25 to -30C on Thursday and Friday mornings.