March 21 - When 2/3 of North America Suddenly Went "Summer"

A well respected climatologist out of the United States called this March 2012 heatwave (quote) “the most extraordinary temperature anomaly in North American history”; this heat dome covered 2-thirds of all of North America! It was the Spring Equinox yet this last day of winter resembled something closer to a midsummer day. Learn more about your ad choices. Visit megaphone.fm/adchoices