ImpactsNew York National Guard/Flickr ‘Polar vortex’ got you baffled? Try this extreme-weather guide A handy explanation of some of the newer climatological verbiage.
Impactsderek visser/Flickr California weather and the Pineapple Express atmospheric river, explained California is under a state of emergency as the atmospheric river named for its origins in Hawaii is slamming the West Coast with heavy rain.
