A tenth of an inch of ice can lead to slick roadways and sidewalks, while a quarter-inch of ice or more could snap tree limbs ...

Major ice storm threatens US with dangerous subfreezing temps | See Florida impacts ...

Here are the many aspects of this massive winter storm that could write it firmly into the weather history books.

About 230 million people across 34 states are under a variety of watches, warnings and other alerts ahead of the historic ...

PHILADELPHIA (WPVI) -- A massive winter storm is barreling toward the East Coast, threatening to bring the heaviest snow the ...

The details are likely to remain elusive well into the weekend, but on Wednesday evidence was accumulating that the Philadelphia region could become a winter wonderland for the remainder of January.

Flights have been canceled, store shelves have been emptied and roads have been treated in at least 34 states that will be ...

Leaders at the World Economic Forum urged countries and businesses to filter out the turmoil from a week of clashes with the ...

The storm already had brought bitterly cold temperatures to parts of the Plains and Midwest, and could bring what forecasters ...

New federal mapping tools show that the Texas coast could face a major transformation if sea levels rise drastically. Projections from the National Oceanic and Atmospheric Administration show that a ...

"These are quite dramatic changes we're seeing over pretty concerning ranges." ...