Tuesday marks the first day of winter, but many people in the United States and Europe have already seen a preview. Can we expect a snowy winter?
The Pacific Northwest will be colder and wetter than usual, while the South and California will be warmer and drier, says the US National Weather Service.
A periodic climate phenomenon, El Nino has prompted storms to smack southern California this week rather than the Pacific Northwest. But Indonesia and parts of Australia are also affected, except they're too dry.