Canada: Adverse winter weather forecast across southeastern Newfoundland through at least early Jan. 6

Adverse winter weather is forecast over parts of southeastern Newfoundland through at least early Jan. 6. A winter storm system is expected to bring snowfall accumulations of around 15-35 cm (6-14 inches) and winds gusting up to around 80 kph (50 mph) across the affected area. Strong wind gusts could lead to periods of blowing and drifting snow, as well as power outages and property damage. Hazardous travel conditions are likely due to slippery roads and reduced visibility.

As of early Jan. 4, Environment Canada has issued a red winter storm warning (the highest level on a three-tier scale) across southern parts of the Avalon Peninsula and a yellow winter storm watch across the rest of the affected area. 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 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 precaution 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.