B.C.'s Highway 5, the Coquihalla, experienced heavy snow, slushy road surfaces and delays on Sunday between Hope and Merritt, and Environment Canada is warning drivers that more heavy snowfalls and icy conditions are expected overnight.
Greg Pierce, an Environment Canada forecaster, said there was about 40 cm of snow on the roads Sunday, with another 10 cm falling throughout the day. He said between 10 and 15 more cm could fall overnight.
Pierce said conditions should improve Monday, but for now, drivers should use alternate routes or delay their travel plans.
The northbound lanes of the Coquihalla were closed at Box Canyon chain-up area Sunday morning because of a crash.
Further north, a travel advisory was issued along Highway 5 between the Portia Interchange and Coldwater Road, where compact ice and "extremely slippery" conditions made travel treacherous.
DriveBC asked drivers to use extreme caution, and to consider using alternate routes or delaying their plans.
Falling rock was also reported near the Coquihalla Summit Sunday morning and throughout the day.