(CNN) — Fall is in full swing, but it’s not too soon to look ahead to winter, especially one that could feel considerably different than last year’s dominated by El Niño. A weak La Niña is expected to ...

(CNN) — When a powerful thunderstorm spawns a tornado, people have what feels like only moments to gather their family and get to a safe place. “Every minute counts,” said David Stensrud, a professor ...

(CNN) — A nasty coastal storm, known as a nor’easter, is organizing and strengthening off the Southeast US. The storm is poised to deliver tropical storm-force wind gusts, soaking rain and dangerous ...

From hail sizes to wind speeds, weather radars help Environment and Climate Change Canada track storms and issue public ...