Another Arctic high pressure system will build southward Friday into the weekend, bringing a shot of very cold air into western Canada later Friday through Sunday.
Along and behind the Arctic front, there will be accumulating snow from BC into the Prairies, with the highest amounts along the Coastal range and into the Rockies.
For Edmonton, Alberta, I expect about 2-5 cm of snow Friday into Saturday morning with the steadiest period of snow coming Friday evening.
In the Calgary area, I expect a general 5-10 cm of snow, with locally higher amounts in the foothills to the west and southwest. The steadiest snow in Calgary will likely fall later Friday night into Saturday morning. Roads will be slick, so slow down if you are out and about.
In addition to the snow, it is going to be cold! Afternoon temperatures on Saturday in the Calgary area will struggle to get higher than -12 C then will fall below -20 Saturday night.
In Saskatchewan, the snow later Friday night into Saturday will be mostly light and intermittent with most areas getting a coating to 2 or 3 cm.
In south-central BC, Kelowna could end up with a general 3-8 cm of snow Friday and Friday night.
This will be the coldest air mass of the season in the Vancouver, BC, area this weekend with afternoon temperatures hovering close to +4 C.
Strong winds and a soaking rain in the east later in the weekend
A potent storm will track into the Great Lakes later in the weekend bringing rain, possible thunderstorms and strong winds to eastern Canada.
The worst of the conditions will be Sunday night in southern/eastern Ontario with wind gusts in the 60-80 km/h range along with some heavy downpours. The strong winds will likely shift into Quebec Monday morning and the Maritimes Monday night.
There is also the chance for another round of lake-effect snow behind this storm in the typical Ontario snow belts Monday night, assuming the storm does not change its forward speed.
Update on the snow potential across eastern Canada tonight into Friday.
Update on snow potential in the East and the latest clues to the long range.
Update on major eastern storm into the weekend.
Major storm system will bring heavy rain, followed by strong winds, falling temperatures and possible high elevation snow into this weekend over the East.
The 2016/2017 winter forecast for Canada has a snowy look for many.
Early November not looking all that cold, but that could change quickly later in the month.