More than 670,000 customers in the US as far west as ⁠New Mexico were without electricity and almost 10,000 flights were cancelled ahead of a monster winter storm that threatened to paralyse eastern states with heavy snowfall.

Transportation Secretary Sean Duffy warned that up to 240 million Americans could be affected by the storm.

Winter storm Fern threatens tens of millions of Americans with blackouts, transportation chaos and bone-chilling cold.

Jan. 24 (UPI) -- Thousands of flights have been canceled or delayed from Texas through the Northeast as 18 states declared emergencies amid a massive winter storm on Saturday.

A massive winter storm sweeping across the US has led to over 14,000 flight cancellations and widespread power outages, prompting emergency declarations in ten states. Authorities warn of life-threatening cold, heavy snow, ice, and sub-zero wind chills affecting the eastern two-thirds of the country.

A massive winter storm continued to batter the United States on Sunday morning, dumping snow, sleet and freezing rain across the South and up through New England. It has brought frigid temperatures, widespread power outages and treacherous road...