NOAA - National Oceanic and Atmospheric Administration - Monitoring & Understanding Our Changing Planet
It’s a puzzle: How could warmth in the Arctic produce frigid conditions elsewhere?
NOAA scientists may have a clue.
Extremely cold winds have swept down through the Northern Hemisphere recently, reaching as far south as the state of Florida and causing record low temperatures in January. The unusually cold winter of 2009–2010 – which saw massive snowstorms dubbed “Snowpocalypse” and “Snowmageddon” — and the frigid start to 2011 in the eastern United States and Europe have scientists talking about what might be influencing the weather.