More than 200 million Americans are bracing for a potentially catastrophic winter storm, with heavy snow and freezing rain forecast
The National Weather Service predicts ice and sleet across the Southern Plains and Lower Mississippi Valley over the weekend
More than 84,000 US residents are without power, and the NWS says "extremely dangerous or impassable travel conditions" are expected
In the northeast, Washington DC, Philadelphia, New York and Boston could see heavy snowfall and travel disruption with as much as 12in (30cm) along the I-95 highway connecting those cities
New York City Mayor Zohran Mamdani warns residents to stay indoors as "whiteout or near blizzard conditions" are expected
Ten thousand flights have been cancelled across the US, with transport officials warning of disruption and delays
Heavy snow and ice to impact millions as winter storm sweeps across US