A fast moving low pressure system over the Northern Plains will track east of MB overnight, bringing a quick shot of gusty northerly winds and some light snow overnight into Saturday morning over southern MB. The cold winds gusting to 60 or 70 km/h will likely produce areas of blowing and drifting snow in open areas particularly through the Red River Valley south of Winnipeg. The gusty winds will bring a brief shot of colder air Saturday before milder air returns for Sunday.
Attention then turns to a storm system that is forecast to develop over the southern Rockies Sunday into Monday. This system is expected to track into the northern Plains Monday into Tuesday bringing a mixed bag of wintery weather to North Dakota and southern MB. At this point it appears that this system will draw up enough mild air to bring an area of wet snow or rain into southern MB late Monday into Monday night and continue into Tuesday. Uncertainty in the track, intensity and precipitation phases of this system makes it very difficult to forecast what will be in store for Winnipeg and southern MB with this event.. but the potential is there for 10-20 mm of mixed precipitation throughout the Red River valley Monday into Tuesday. Stay tuned for futher updates on this developing situation.