Siberian Express

A Siberian Express refers to a rapid influx of extremely cold air moving from Siberia—an expansive region in Russia—into North America or other areas. This cold air mass, often originating from the Arctic, travels southward quickly, causing significant temperature drops and cold weather outbreaks. The term highlights the dramatic and swift nature of these cold air invasions, which can lead to severe winter conditions, heavy snowfall, and very low temperatures in affected regions. Essentially, it's a meteorological event where frigid Siberian air rapidly impacts areas far from its origin.