The weather has been decidedly benign over the Prairies this month, with many places still without a snowcover. In fact, take a drive down Highway 75 from Winnipeg and you'll see little or no snow on the ground by the time you get to Morris. Likewise much of southern SK and southern AB remain snowfree. The lack of weather systems affecting the Prairies this month has meant little precipitation as well as above normal temperatures, especially over the western Prairies. Things will change next week however as an intensifying Alberta clipper tracks across the Prairies, bringing a band of snow with it, followed by a strong push of cold air behind it.
Models are indicating this storm system will develop over Northern Alberta next Monday (Dec 1st) moving into the MB Interlake area on Tuesday (Dec 2nd). The storm system will be preceded by a push of mild Pacific air that will send temperatures well above normal over the southern Prairies Dec 1st-2nd.. especially over snowfree areas. North of the storm track however, a band of snow will be moving across the Prairies pushing into central and southern MB on Tuesday. At this point, models are indicating the bulk of the snow (10-15 cm) will fall mainly north of Winnipeg through the Interlake area and central MB. However, the snow could push further south with a more southern storm track. As the storm moves east into Ontario, cold northwest winds behind it will draw much colder air from the Arctic over southern MB, bringing temperatures into the minus teens for mid to late week, into next weekend.