A weekend storm sent temperatures plunging well below zero in the Midwest and dumped heavy snow on parts of the Northeast on Sunday, creating many airport delays and slick roads as the Pacific Northwest braced for more rain after days of flooding and mudslides.

A winter storm will deliver a punch of snow to millions in the Northeast after it dumps more white stuff on the snowy Midwest.

A First Alert was in effect as a winter storm brought snow across the Philadelphia region Saturday night into Sunday morning.

Although the storm will move out of the region quickly, its impacts could cause widespread disruptions to daily life.

A quick-moving system will bring at least an inch of snow to Greater Boston and areas south, making for a snowy Patriots-Bills matchup.

A strong geomagnetic storm is forecast for Tuesday, according to the National Oceanic and Atmospheric Administration's Space Weather Prediction Center.

A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast says the low temperatures won't last.

Dangerously cold temperatures and wind chills will follow the storm on Sunday. Latest updates on timing and snowfall totals for New Jersey.