An intense low over the central plains will be moving north into Minnesota overnight and Tuesday bringing another round of precipitation over southern MB beginning tonight and continuing into Wednesday. Precipitation will move in as rain over the Red River valley and southeast MB tonight into Tuesday morning before it changes to snow in the afternoon or evening. There may even be a period of freezing rain during the transition from rain to snow Tuesday. Rainfall amounts from this second round of precipitation will likely be in the 10-20 mm range with locally higher amounts of 30 mm possible near the US border. Snowfall may accumulate 5 to 10 cm late Tuesday through Tuesday night into Wednesday. Snowfall amounts may be higher if the transition to snow is earlier than currently expected. Further west, the air will be cold enough for the precipitation from this system to fall as snow Tuesday, with significant amounts of 20 to 25 cm possible in areas west of the Red River valley. Winter storm and weather warnings are in effect for much of southern MB for this system.
Meanwhile, the province of Manitoba has released its updated flood outlook for the Red River today. It hasn't changed it's earlier forecast anticipating a 1979 level flood but still short of 1997 levels.