A winter storm watch has been issued for much of southern MB for Monday into Tuesday as a complex storm system in the US plains spreads a messy mix of wintery precipitation into the area. The storm system is expected to spread an area of freezing rain into Southern MB overnight into early Monday morning which could make the morning commute treacherous un untreated roadways. Freezing rain may last for several hours with significant icing possible in some areas Monday.. possibly 5-10 mm of ice or more. This may be enough to cause damage to tree limbs and power lines with power outages possible. By afternoon, the freezing rain is expected to change to rain, mixed with wet snow at times, over the Red River valley and southeast MB as temperatures rise above zero.. while wet snow will likely prevail over western areas. Rainfall could be in the 5-15 mm range across southeast MB Monday into Monday night while snowfall amounts of 10 cm of more are possible further north and west. Precipitation is expected to gradually change to snow over all areas Tuesday into Wednesday as colder air wraps into the system.
Considerable uncertainty remains in the timing, precipitation amounts and precipitation phases with this system. This is an unusual storm system for this time of year in southern MB.. typically storms with such a mixed variety of weather don't hit southern MB until March or April. As such residents are advised to stay tuned to updated watches and warnings on this developing situation.