Canada, US: Adverse winter weather conditions forecast across parts of southeastern Canada and the northeastern US through at least Jan. 10

Adverse winter weather conditions are forecast across parts of southeastern Canada and the northeastern US through at least Jan. 10. A winter storm system is expected to move into the Great Lakes from the central US Jan. 9 and will track east-northeastward across the region through Jan. 10. Snowfall accumulations of 15-40 cm (6-16 inches) are possible across parts of the affected area. Strong winds are also forecast across the region and the combination of heavy snowfall and gusty winds may cause blizzard conditions in places. Rough seas and elevated tides are also possible in Atlantic coastal areas. Hazardous driving conditions are likely across the affected areas due to icy roads and reduced visibility caused by blowing snow.

As of Jan. 8, Environment Canada has issued a red blizzard warning for parts of eastern Labrador and a red storm surge warning for parts of southeastern Newfoundland. Winter storm watches have been issued for parts of southeastern Ontario and southern and south-central Quebec. Special weather statements for winter storms and coastal flooding are in place across most of the rest of the affected area.

The US National Weather Service (NWS) has issued winter storm watches for parts of northern and central Michigan, northern and eastern New Hampshire, and central, northern, and western Maine. Winter weather advisories are in place for parts of the Upper Michigan Peninsula.

Officials will likely issue new alerts or update/rescind existing advisories as weather conditions change over the coming days.

Snow accumulations are likely across 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. 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 also likely on secondary and rural roads as maintenance crews prioritize clearing major routes. Authorities will likely close stretches of highways if driving conditions become too hazardous. Gusty winds will threaten to topple high-profile vehicles throughout the affected areas. Mountain passes and tunnels will probably be closed as a precautionary measure during periods of intense snowfall. The disruptive weather will likely 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.