Arctic air and possible difficult travel conditions by early Tuesday.
The first Arctic outbreak of the season will bring Arctic air and possible difficult travel conditions to the South Coast of British Columbia late Monday night and early Tuesday. However, Whistler will likely receive at least 15 cm of snow tonight through Monday before the Arctic air arrives. Snowfall warnings may be required here.
The Arctic air will arrive from the east, spilling out the coastal inlets and valleys first, spreading west toward Vancouver Island on Tuesday. As the leading edge of the coldest air of the season arrives, bursts of snowflurries may rapidly reduce visibility. Local snowfalls of a few centimetres are possible as the Arctic air arrives. Windchill equivalent temperatures between -10 and -15c are likely in areas exposed to outflow winds for Tuesday night.
After the Arctic arrival, the South Coast will settle into an extended period (4-6 days) of chilly but otherwise weather-less winter days.
The public is advised to monitor future forecasts and warnings as warnings may be required or extended.
Please monitor the latest forecasts and warnings from Environment Canada at http://www.weather.gc.ca.