(CNN) — Much of the United States is experiencing prolonged and extreme cold weather, with recent winter storms, dangerous windchills and record low temperatures affecting millions of people. As ...

Supercell thunderstorms are dangerous storms that unleash large hail, roaring winds and powerful tornadoes.

(CNN) — Punxsutawney Phil, the groundhog weather icon, saw his shadow when he was plucked from his warm burrow and thrust out into the frigid air Monday morning. According to Phil, that means six more ...

(CNN) — A major winter storm is spreading heavy snow and damaging ice across a large portion of the United States. Extremely cold temperatures will only worsen the storm and increase its danger. The ...

(CNN) — Thousands in the Northeast remained without power amid freezing temperatures Tuesday as people from that region and the mid-Atlantic dug out from extreme snowfall — including more than 2 feet ...

(CNN) — There’s a winter storm brewing that promises to blanket Texas to Washington, DC, in heavy snow and dangerous amounts of ice. Preparing for the kinds of impacts we’re expecting isn’t just about ...

(CNN) — A rapidly strengthening coastal storm is expected to develop this weekend and bring heavy snow, strong winds and coastal flooding to the Southeast amid an outbreak of deadly cold temperatures.

(CNN) — The US is a nation divided, with frigid conditions, snow and ice entrenched east of the Rockies all the way into Florida, and record warmth and paltry snowfall in the West. The dichotomy has ...