Canada, US: Adverse winter weather conditions forecast across parts of far southeastern Canada and the northeastern US through at least early Jan. 30

Adverse winter weather conditions are forecast across parts of far southeastern Canada and the northeastern US through at least early Jan. 30. A winter storm system will move east-northeastward across the affected area from early Jan. 29 through early Jan. 30, bringing heavy snowfall and strong winds. Snowfall accumulations of 15-25 cm (6-10 inches) and winds gusting up to around 80 kph (50 mph) are possible across parts of the affected area. The combination of heavy snowfall and gusty winds may cause blizzard conditions in places. Hazardous driving conditions are likely across the affected areas due to icy roads and reduced visibility caused by blowing snow.

As of early Jan. 29, Environment Canada has issued red snowfall warnings (the highest level on a three-tier scale) across much of Nova Scotia and red winter storm warnings across southeastern parts of Newfoundland.

The US National Weather Service (NWS) has issued winter storm warnings for parts of eastern Upstate New York, northern Massachusetts, southeastern Vermont, and southern New Hampshire. Winter weather advisories are in place across the rest of the affected area.

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.