Is La Niña to blame for the atmospheric river soaking Stockton? Here's what the climate cycle means for winter weather.

A possible wobble in the polar vortex could soon push frigid air into the northern U.S., and Ohio could see more arctic air around Thanksgiving.

New York could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, bringing frigid air into the U.S.

Grand Canyon National Park will close the North Rim to all visitors at 5:20 p.m. on Friday, Nov. 14 — more than two weeks earlier than planned — as incoming ...