A weather alert for heavy snowfall on the Coquihalla Highway has been upgraded to a winter storm warning.
On Saturday, Environment Canada said an incoming Pacific system would bring an estimated 20 to 40 cm of snow beginning later Sunday.
On Sunday morning, though, the national weather agency changed the special weather statement to a winter storm warning, saying 25-40 cm is expected. It also told motorists to consider postponing non-essential travel until conditions improve.
More about Environment Canada’s public alerts can be found on this webpage.
“Precipitation near the Coquihalla Summit will begin as periods of light snow today, with snow levels rising to near 1,000 to 1,200 metres this afternoon,” said Environment Canada. “Lower elevations along the route will receive rain.
“Light snow is expected to intensify overnight with lowering snow levels. Snow at times heavy will continue through Monday and taper off to a few flurries Tuesday afternoon.”
Meanwhile, a winter storm watch issued on Saturday for a portion of Highway 3 was also upgraded on Sunday morning to a winter storm warning.
Environment Canada’s updated forecast predicts 25 to 35 cm of snow between Paulson Summit and Kootenay Pass. The snow is expected to start later Sunday before easing late Monday afternoon.
The distance between the two passes is around 115 kilometres.
Meanwhile, wind and rainfall warnings are in place for Metro Vancouver, the Sunshine Coast, Howe Sound and parts of Vancouver Island.
“A strong onshore flow will direct two storm systems towards the South Coast. Rain will intensify today and continue through tonight,” said Environment Canada.
“Upslope areas along the North Shore mountains will receive the heaviest precipitation through the period. Rainfall amounts near 50 to 70 mm are expected before the heavy rain eases to showers Monday morning.”
Southeast winds are expected to gust between 70 and 90 km/h before easing on Monday morning.
For the latest highway conditions throughout the province, visit DriveBC.