Temperatura record a Chicago, -27 gradi!
L'insolita ondata di freddo si è fatta sentire anche negli Stati tradizionalmente più caldi, come Tennessee e Alabama, arrivati fino a -8. In tutto, circa 187 milioni di persone – più della metà della popolazione statunitense – hanno subito gli effetti del vortice polare, che ha reso molte zone degli Stati Uniti più fredde della Siberia ed ha provocato grandissimi i danni economici.
by Clay Bennett - The Skeptic
by Clay Bennett The Winter Storm
by Clay Bennett Stripped
Polar Vortex
By Nate Beeler, The Columbus Dispatch - 1/6/201
Ice-age in USA
By Petar Pismestrovic, Kleine Zeitung, Austria - 1/6/2014
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Hell Freezes Over
By Rick McKee, The Augusta Chronicle - 1/7/2014
Polarizing vortex
By John Cole, The Scranton Times-Tribune - 1/7/2014
Polar Vortex by Steve Breen
North Avenue beach on Lake Michigan is encased in ice as temperatures hit a record low of -16F. Photograph: Scott Olson/Getty Images (fonte)
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Polar vortex over US brings abnormally mild weather to Scandinavia
Weather system disrupts flora and fauna in Nordic countries, with bears reportedly emerging from hibernation
US polar vortex: the best pictures
Niagara falls freezes over - in pictures
Cost of the cold: 'polar vortex' spell cost US economy $5bn
Most US airlines lost an estimated $50m to $100m as pipe damage and loss to workforce add up
http://metofficenews.wordpress.com/2014/01/07/what-is-causing-the-extreme-cold-over-north-america/