Arctic air

Forecast A cool day as temperatures plummeted overnight. -15C up top the peak this morning, -9C in the valley. A ridge of high pressure is building, and arctic air will stick around for a few days. A alpine inversion is forecast to build starting by Friday as the flow changes to the south west with freezing levels soaring to 3300m. Alpine high of 8C on Sunday.  Warm air at treeline Sunday Today Sunny.  High: -5 °C Tonight Clear.  Low: -10 °C Thursday Sunny. Becoming a mix of sun and cloud in the morning.  High: -4 °C Friday Sunny.  Low: -7 °C High: 0 °C Saturday Sunny.  Low: -7 °C High: 0 °C Sunday Sunny.  Low: -5 °C High: 2 °C Monday Sunny.  Low: -3 °C High: 6 °C Tuesday A mix of sun and cloud.  Low: -2 °C High: 6 °C Forecast Issued: Wednesday, November 20 2013 05:00 PST

Almanac For November 20 Value Year Greatest Rainfall (1977-2012) 30.0 mm 1993 Greatest Snowfall (1977-2012) 10.2 cm 1980 Greatest Precipitation (1977-2012) 30.0 mm 1993 Most Snow on the Ground (1980-2012) 44.0 cm 2009 Highest Temperature (1977-2012) 10.3 °C 2002 Lowest Temperature (1977-2012) -15.0 °C 1985 Average Maximum Temperature 2.3 °C Average Minimum Temperature -2.8 °C Average Temperature -0.3 °C Sunrise 07:33 Sunset 16:22 Normal High 2 °C Normal Low -3 °C