High pressure breaking down , a bit of snow for weekend?

Forecast A bit of snow in the forecast for the weekend, it may not be much looking at the computer models. Saturday night through Sunday morning looks to be the most snow. A strong Northwest flow lasts for about a day. We should see 10-15cm . A arctic ridge of high pressure stronger than the last one will be here by Monday, treeline temperatures will plummit for early next week. Treeline Monday buuuurrrr! Today A mix of sun and cloud.  High: 5 °C Tonight Mainly cloudy. 30 percent chance of flurries overnight.  Low: -1 °C Wednesday A mix of sun and cloud. 30 percent chance of flurries in the morning.  High: 5 °C Thursday A mix of sun and cloud.  Low: 0 °C High: 5 °C Friday Cloudy.  Low: -2 °C High: 3 °C Saturday Periods of rain.  Low: 1 °C High: 3 °C Sunday Periods of rain.  Low: 2 °C High: 3 °C Monday Cloudy with 60 percent chance of flurries.  Low: -3 °C High: -1 °C Forecast Issued: Tuesday, November 26 2013 05:00 PST

Almanac For November 26 Value Year Greatest Rainfall (1976-2012) 29.7 mm 2011 Greatest Snowfall (1976-2012) 20.0 cm 1996 Greatest Precipitation (1976-2012) 62.4 mm 2011 Most Snow on the Ground (1980-2012) 49.0 cm 2011 Highest Temperature (1976-2012) 5.9 °C 1995 Lowest Temperature (1976-2012) -22.0 °C 1985 Average Maximum Temperature 1.3 °C   Average Minimum Temperature -3.7 °C   Average Temperature -1.2 °C   Sunrise 07:42 Sunset 16:16 Normal High 1 °C Normal Low -4 °C