Environment Canada has issued a special weather statement that is in effect until Wednesday affecting the R.M. of Portage la Prairie including St. Ambroise
Environment Canada: The unseasonable warm spell through southern Manitoba will soon come to an end. A cold front from Saskatchewan will bring colder temperatures with some rain or snow for Wednesday. More significantly, there is also a potential for the development of a Colorado Low which could bring heavy rain or heavy snow to parts of southern Manitoba beginning sometime Thursday and continuing into the weekend.
Travel will be affected. It is too early to predict exactly where and how much of this precipitation will fall. More specific details will be forthcoming as these weather systems develop.
Environment Canada cautions motorists to continue to monitor alerts and forecasts issued by Environment Canada.
The AccuWeather forecast is similar calling for a potentially significant snowstorm with possible blizzard-like conditions this weekend.
“After a very warm Tuesday across Manitoba, the weather will be turning more towards winter for the latter half of the week as a very potent snowstorm takes aim at our province,” the AccuWeather forecast outlines.
The Forecast: Cold air will begin to move in this Wednesday, bringing the first swath of wet snow across the province. This first system is not expected to accumulate more than a couple of centimetres
but then, on Thursday, a “Colorado-low” will be making its way towards us, bringing much higher snowfall totals. In addition to this significant snowfall will be strong winds and this will create possible blizzard-like conditions.
The most intense part of this system will be seen on Friday night into Saturday. The highest accumulations are expected to be in an area between Brandon, Winnipeg, and the US border where we could see a general 20-40 cm (8-16 inches) with locally higher accumulations possible in areas higher in elevation. We are expecting slightly lower accumulations within the city of Winnipeg, due to ground temperatures being slightly warmer, which means some of the snow will likely melt on impact at the beginning of the storm.
Winds are expected to be sustained around 45-50 km/h Friday evening into Saturday, with gusts reaching 80-90km/h. This, combined with heavy snowfall will quite possibly result in blizzard-like conditions making travel extremely difficult and dangerous.
Heavy snow will also accumulate on trees with foilage left on them very quickly resulting in possible tree damage and power outages, especially with these strong wind gusts.