Two Snow Events in the East and Cold for the West
A very weak storm system moving through the Northeast states later this evening will intensify over the Gulf of Maine Thursday then track northeastward. There is not a lot of cold air around this storm, and moisture will be lacking initially. The best bet for a decent accumulation of snow will be from northeastern Maine to northern New Brunswick Thursday. Some wet snow will mix in with the rain over the southern Maritimes, but no accumulation is expected due to warmer surface temperatures.
Second storm Thursday night into Friday
This storm will initially be stronger and more organized than the one mentioned above. This storm will track close to the lower Great Lakes then into New Brunswick Friday night. There is still plenty of uncertainty with the track as computer models are not in total agreement (no surprise). The map that I drew up below shows where I think the track will be and areas of accumulating snow (1 cm or more). The white area indicates the region where the heaviest snow will be and in this region we could see anywhere from 8-20 cm. The snow will be wet across southwestern Ontario with some rain mixed in.
We will post a more detailed snow accumulation map tomorrow morning.
-------- Western Cold
A two- to three-day shot of very cold air coming into western Canada starting this weekend then a brief recovery before a longer duration period of cold weather sets up across Alaska and a large part of western Canada through the first 10 days of March.
In addition to the cold, a storm will spread anywhere from 5-15 cm of snow from southern/central Alberta to southern Saskatchewan Saturday and Saturday evening.
By the time, it gets cold enough for snow in Vancouver, BC, Saturday night, and Sunday the bulk of the moisture will have already shifted to the south and east, but during this period there will likely be some snow showers.
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