The storm that arrives tomorrow dumped heavy snow across the Rockies this week in both the US and CanadaBig changes are in the air as we head into Thanksgiving weekend. A potent low pressure area is organizing over the plains states and is expected to move northeast towards Michigan and east into Quebec while deepening. Rain will overspread the region tonight and continue into Wednesday. Close to 25mm of rain is possible in many areas, with embedded thunderstorms. Winds will become a factor as well on Wednesday and may reach advisory level in Ontario and western New York, with gusts over 80 km/h. It will be windy in southern Quebec as well, exceeding 60km/h in Montreal. We will get a break on Thursday with partly sunny skies and mild temperatures before another storm moves in for Friday. Behind that storm much colder air will pour into the region and some snow is possible off the Great Lakes into Sunday. I will post more on that later in the week. Next week will be sharply colder and we will likely have a general frost ending what is left of the growing season.
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