An arctic cold front will sweep across Ontario and Quebec on Tuesday from west to east. It will affect southern Ontario first and work its way into Quebec for the evening rush hour. It should move through Kemptville by noon and Montreal by 4pm or so. Most areas will experience a heavy shot of snow with between 5-10cm expected as the front passes. In addition to the snow, winds will shift from southwest to northwest and gust over 60km/h causing blowing and drifting snow and poor visibility. If that were not enough temperatures close to -2C to start the day will begin to plummet and reach -25 to -30C by Wednesday with dangerous wind chills. They will only rise slightly - maybe to -20C for the balance of the week before a slight moderation on Saturday.
**With such a drop in temperatures and strong winds, travel will become very poor on Tuesday as roads ice up and visibility is reduced. Also this extreme cold will be dangerous as wind chills will be near -40C.
Winter Weather Advisories have been posted for upstate New York and a Special Weather Statement has been issued for Ontario.
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