|NAM model showing position of |
Colorado low at 6 pm Friday eve.
Swath of heavy snow and strong
winds will be bringing blizzard
conditions to Winnipeg late Fri
Before the main event, a cold front pushing through southern MB tonight will usher in colder air from the north with some snow or freezing drizzle developing overnight. Snow will continue through the day Friday before it starts intensifying in the afternoon and evening. Snow will become heavy at times, and with strong northerly winds gusting to 70 km/h, blizzard conditions are expected Friday night into Saturday morning, especially outside the city. At this point, it appears that Winnipeg will see about 10-20 cm total snowfall by Saturday morning with this storm, with higher amounts possible outside the city. The snow however will not be the main story, as the strong winds will result in heavy drifting and blowing snow, along with poor visibilities. The western RRV between Winnipeg and Portage will be especially bad given the full fetch of strong NNW winds off Lake Manitoba. Conditions are expected to improve by Saturday afternoon as the storm system tracks into NW Ontario.
Blizzard warnings are issued by Environment Canada for storms that will bring at least 4 consecutive hours of visibilities of 1/4 mile (400 metres) or less in snow and/or blowing snow, along with sustained winds of 40 km/h or more. Specific thresholds of snowfall are not required for blizzard warnings, as they are based on visibility criteria, not snowfall amounts.
Follow the storm on radar! Click on radar viewer from A Weather Moment to follow progress of snow as it heads into southern Manitoba.
|An example of the heavy drifting |
near Winnipeg caused by Friday's
blizzard. Winds gusting to 75 kmh
and 10-15 cm snow produced
extensive blowing and drifting snow
Photo tweeted by @loco372