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Update on Snowstorms

Jan 17, 2012; 1:37 PM ET

Computer models are starting to sense the strength of the arctic push (8 below zero C in Abbotsford, BC, mid-morning) coming down through BC now and continue the slight southward trend of the storm track for Wednesday. Also, 30 below zero Celsius in Calgary, AB, as I write this.

This southward trend of the storm track will take the heavy snow threat out of BC and concentrate it over western Washington then into the higher elevations of Idaho Wednesday into Wednesday night.

There will still be some snow (another 6 cm or less) for the lower Mainland of BC into Wednesday, but the cold basically wins this battle. Some higher amounts in the mountains to the east and Southeast.

If the trends continue, the heavy snow may even end up just south of Seattle, but not willing to go with that idea as of now. Seattle will be a mess Wednesday!

Latest colorized infrared satellite image showing the storm still well west of the Oregon coast (bright colored clouds with the swirl to the left)

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Here is our latest thinking for the eastern storm, which is now tracking into southwestern Ontario. Heaviest snow will be from the Parry Sound region to north of Ottawa and to just north of Quebec City. The snow totals include the snow from earlier today farther east.

Montreal, Quebec, will get an icy mix this evening before going back to snow overnight and ending. Storm track just too far north to give heavy snowfall for most of the St. Lawrence River Valley.

By Wednesday, the strengthening storm will be over the Gaspe, with heavy snow to the west and north/northeast of the center.

Temperatures will steadily drop below freezing around the GTA later this evening, so watch out for icy roads and sidewalks.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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About This Blog

Brett Anderson
Brett Anderson covers both short-term and long-term weather and storm forecasts for Canada in this blog for AccuWeather.com.

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