Frosty morning

It is hard to believe we are sitting below freezing in Montreal, Ottawa and Toronto this morning after reaching nearly 30C (86F) on Monday. But here we are back to the gloves with a touch of frost on the ground and certainly on your front windshield. High pressure settled into southern Quebec and Ontario overnight with calm winds and cold temperatures. A widespread frost and in some cases a freeze has occurred across Michigan and Ontario south into Ohio and New York as well as most of Quebec. It could be worse, snow is still on the ground across northwest Ontario with as much as 40cm in some locations. Another round of snow, likely 10cm or so is forecast later today for that same area.

From AccuWeather.com a look at this weekends potential storm track.

Our weather will be controlled by high pressure into Friday with warming temperatures and just some high cirrus clouds. By Friday the weather will become increasingly stormy into the weekend and early next week. A complicated collection of systems will begin to affect southern Quebec, the most important being a potent low pressure area moving from the Gulf of Mexico up the eastern seaboard. This storm will have the potential to produce heavy rain with up to 50mm (2 inches) possible along the track. It is much needed rain so it will be welcomed to help lower the recent fire threat. It will however mean a wash out for the weekend at this time. Winds will be gusty and it will be chilly. It may even be cold enough for some wet snow in some elevated location and north of Montreal, but we will look at that a little closer as we move towards the weekend. In the meantime enjoy the sunshine, it will warm to 12C today and up to 18C on Thursday.