Weekly pattern outlook through February
After an intense, but very brief visit of Arctic air into eastern/Atlantic Canada today into Saturday, the overall pattern across the eastern half of North America will turn milder as the main pocket of cold air sets up across western Canada and the western United States into the third week of February.
This does not mean there cannot be any snow in eastern Canada and the Northeast U.S., as the pattern will be stormy at times and perhaps just cold enough for snow, especially away from the Atlantic Ocean. However, I do not see any sustained stretches of very cold air anytime soon in the East.
There are signs of a possible stratospheric warming event taking place over the polar regions mid- to late February, which may eventually open the door to some abnormally cold weather farther south into southern Canada and the northern half of the U.S. at the end of February or more likely in March.
Much of western Canada looks colder than normal over the next few weeks with opportunities for more snow in ski country.