Signal: January/February 2011 cold wave over USA
ArcticOscillationJan2011Grabsmaller

Cold weather over U.S. linked to record low Arctic sea ice

by on 02. Feb, 2011 in Uncategorized

Arctic sea ice extent for January 2011 was the lowest in the satellite record for that month. The Arctic oscillation persisted in its strong negative phase for most of the month…[and]…cold conditions in northern Europe and the U.S. are linked to the strong negative mode of the Arctic oscillation. Cold air is denser than warmer [...]

WarmArctic-NorthAmericaPattern

Warm Arctic pushing cold storms south to the U.S.

by on 02. Feb, 2011 in Uncategorized

This year, for the second time in row, a warm Arctic is again influencing the Polar Vortex, allowing more cold wind to escape to the south and bringing cold to the U.S. East Coast, East-Central Asia and Europe. In 2010, the extent of sea ice cover in the Arctic at its lowest point in September [...]