For the millionth time over the last month and a half, another system is bringing a little douce of snow.
Currently over Canada the main idea is a big trough in the east and ridging in the west. It is a more extreme west for the ridge, so northwest flow + cloudy skies = still below normal temperatures for us today. A little low is trying to sneak in from the west, and is currently in the Gulf of Alaska. It’s around the coast right now, and it will spill across the Rockies this afternoon and evening, generating an Alberta clipper. Snow is currently spreading eastwards over northern Alberta in advance of this, and according to the radar, it is around Slave Lake right now.
Over tonight the clipper will move southeast, then stabilize to a zonal track in the southern prairies. The precipitation for this system is quite complicated, and also very inconsistent between models. The main idea is that a front will come around behind the low with some snow there, and a big swath will set up something around 200 km north of us. If this holds true, we might see a short but moderately heavy bit of snow (or maybe rain I guess?) sometime early to mid overnight, then a break in precipitation until tomorrow afternoon, or maybe the evening, when the swath comes down, and gives us some intensity of snow, depending on how much moisture is left. As you can see, the models don’t really know what they’re doing.
So how much snow for all this? I don’t really know, but we’ll say 1-5 cm, really depending on that swath. One more thing to note; in the wake of the cold front we will probably see some strong winds maybe something like 30 gusting to 50.