As millions of Americans hunker down for the winter storm, at least 23 states and Washington, D.C., have declared states of emergency.

An Arctic surge will bring dangerous wind chills and snow squall risks to parts of the Great Lakes, Northeast and Mid-Atlantic.

Monday in the Philadelphia region will be mostly sunny, but it will remain dangerously cold with lows in the single digits.

Windy conditions are expected on Tuesday and Tuesday night. Wednesday will be breezy, but not as windy as Tuesday. Thursday ...

Overcast skies are overhead this morning and will stay with us all day Wednesday. That said, it is impossible to rule out ...

Extreme cold warnings span several eastern states as of Friday, with meteorologists warning of frigid wind chills.

A powerful storm will approach the Atlantic Coast over the weekend of Jan. 31, and it promises to be a doozy, but cold temperatures and snow also are forecast for much of the nation. Chances for ...

Add Yahoo as a preferred source to see more of our stories on Google. As millions of Americans hunker down for a massive winter storm sweeping the country, new maps are offering updated forecasts of ...

Another winter storm is on track to slam the East Coast this weekend, bringing more snow to states still reeling from Winter Storm Fern. The latest forecast map from the National Weather Service shows ...

Rain arriving Saturday night will become widespread across the Bay Area through much of the week as a series of storm systems arrive, the National Weather Service said. The rain will be accompanied by ...

A significant winter storm is forecast along the East Coast of the United States by the weekend, but it remains to be seen just how much snow, ice or other impacts it could bring to millions still ...