Winter Storm

A powerful winter storm swept into the U.S. Northeast early Saturday, snarling post-holiday travel, grounding hundreds of flights, and prompting emergency declarations in New York and New Jersey as snow, ice, and high winds created hazardous conditions across the region.

The storm arrived as millions of travelers were returning from holiday trips, amplifying its impact on air and road transportation. Officials warned that a dangerous mix of heavy snow, sleet, and freezing rain could make roads treacherous and disrupt weekend plans.

New York Governor Kathy Hochul declared a state of emergency late Friday, cautioning residents to limit movement as conditions …