Oh oh.. looks like Winnipeg and Southern Mb may be looking at a white Halloween as a storm system from Montana moves over the Dakotas on Monday bringing the potential for accumulating snow Monday into Monday night across the area. Models are indicating that this storm system will intensify over North Dakota on Monday, bringing a swath of snow from southwest MB through the Red River valley and southern Interlake regions. At this point, it appears that 10 to 15 cm of snow is possible over Southern MB, with up to 20 cm over higher elevations of southwest MB such as the Turtle Mtns and Pilot Mound areas. This same storm system is producing snow across southern Alberta today including Calgary (check out the Calgary webcam today to see what we may be in for tomorrow!)
Snow from this system should start falling over southwest MB overnight into Monday morning, spreading into Winnipeg by midday Monday or early afternoon. Snow will quickly increase in intensity through the afternoon into the evening with 10 cm possible by midnight. The snow will likely begin as wet melting snow in Winnipeg initially as temperatures will be above zero by the time the snow starts, but will drop to the freezing mark as the snow intensifies. The Monday afternoon rush hour could be a sloppy slow one if this pans out. The storm should clear out by Tuesday morning, but it’s not likely that the snow will melt in time for Halloween trick or treating Tuesday evening. Get the boots ready!