Wednesday, February 21, 2007

Snow moving across Southern MB

A low pressure system crossing Southern MB this morning is bringing a fairly narrow but intense band of heavy snow generally north of the Trans Canada highway. Near zero visibilities are being reported in this swath of heavy snow that extends from Lake Manitoba across the southern interlake area into southern Lake Winnipeg (including the communities of St Laurent, Tuelon, Inwood and Winnipeg Beach). This axis of heavy snow is generally sliding eastward so the heaviest snow should stay just to the north of Winnipeg, mainly confined north of Highway 67. 10 to 15 cm of snow is possible along this swath with snowfall rates of 2 to 3 cm per hour at times. Further south, "wrap around" snow from this system will move in from the west this morning, giving about 2 to 5 cm of new snow generally along and south of the TransCanada, including Winnipeg. Increasing north to northwest winds today will produce blowing and drifting snow, with near blizzard conditions possible this afternoon in open areas over the Red River Valley.


  1. Snowfall reports as of 10 am:

    Elphinstone (Riding Mtn).. 27 cm
    Amaranth.................. 15 cm
    Pinawa.................... 10 cm

    Looks like a good swath of 15 to 25 cm just north of Winnipeg today.

  2. I measured another 3 cm of snow today, on top of the 6.6 cm from yesterday. So after virtually no snow all of February, we've picked up about 10 cm over the past couple of days, with another 5 to 10 cm possible Friday into Saturday. (This next system may give 10 to 20 cm over southwestern Manitoba..stay tuned)

  3. Ice pellets mixed in with the heavy snow... atleast in South Winnipeg.

    Looks like a tough forecast for Friday and Saturday. The models show a sharp southwest flow aloft ahead of a broad, complex system. An initial wave looks to affect areas west of Winnipeg and then weaken as energy refocuses as a Colorado low.

    The models keep showing a trough extending north from the low. This makes for a tricky forecast because the low is "suppose" to stay so far south. I hope it completely misses us...we have enough snow already


  4. Dan..

    Yep, more snow on the way.. but I think the bulk of the snowfall will be over the higher elevations west of Winnipeg. This storm will have a good east to southeast flow associated with it, which will aid in upslope accumulations west of Winnipeg. Probably 10 to 20 cm from Riding Mtns to Pilot Mound, with perhaps 5 to 10 cm for Winnipeg and east. Of concern will be those gusty southeast winds to 60 km/h which will cause considerable blowing and drifting snow.. so conditions could be bad everywhere Friday, no matter how much snow you receive.