Canada: Adverse winter weather forecast across southwestern and southern British Columbia through at least Jan. 19 /update 1

Adverse winter weather is forecast over southern and southwestern British Columbia through at least Jan. 19. Hazardous travel conditions are likely due to slippery roads and reduced visibility. As of late Jan. 17, Environment Canada has issued the following warnings:

• Red snowfall warnings (the highest level on a three-tier scale): East Vancouver Island through early Jan. 19; 10 cm (4 inches) of snow is forecast, with 20 cm (8 inches) inland. Far southeastern British Columbia through Jan. 17.

• Red winter storm warnings: Inland Vancouver Island. 10-15 cm (4-6 inches) of snow, a prolonged period of freezing rain, and gusty winds are forecast through Jan. 19.

• Red arctic outflow warnings: Inland sections of the North Coast, including Terrace and Kitimat, through the afternoon of Jan. 18. Frostbite and hypothermia are possible.

• Red wind warnings: Central Coast through early Jan. 19 and exposed coastal areas of northern Vancouver Island the evening of Jan. 18.

Officials could update and extend the coverage of weather alerts over the coming hours.

Snow accumulations are likely across the parts of the affected area. Lesser snowfall totals are possible where sleet and freezing rain mix with snow. In addition to the heavy snow, strong wind gusts could lead to periods of blowing and drifting snow. Blizzard conditions are possible. Sporadic power outages may occur throughout the affected area.

The inclement weather will likely cause widespread ground and air transport disruptions across the affected areas. Traffic and commercial trucking delays are probable along regional highways. Dangerous and challenging driving conditions are likely, especially on secondary and rural roads, as maintenance crews prioritize clearing major routes. Authorities will probably close stretches of highways if driving conditions become too hazardous. Gusty winds will threaten to topple high-profile vehicles throughout the affected areas. As a precaution, mountain passes and tunnels will likely be closed during periods of intense snowfall. The disruptive weather will probably cause delays and cancellations at airports in the affected regions. Heavy, wet snow and strong winds could bring down power lines and trees with foliage.