Francis/Vavrus2012 mostly cited - but I also think the Eastern Pacific Oscillation has had more to do with it last month with the AO/NAO very + Happy New Year to all -----Original Message----- From: Climate & Meterology in Vermont [mailto:[log in to unmask]] On Behalf Of Lesley-Ann Dupigny-Giroux Sent: Tuesday, January 07, 2014 12:41 PM To: [log in to unmask] Subject: Polar vortex Happy New Year everyone!!! With the polar vortex being at the top of the news, I thought this article might be most a propos. Best Lesley-Ann <http://www.washingtonpost.com/blogs/capital-weather-gang/wp/2013/12/24/arctic-warming-jet-stream-coupling-may-portend-another-winter-of-extreme-storms-and-cold-air-outbreaks/> -- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Lesley-Ann L. Dupigny-Giroux, Ph.D. Associate Professor & VT State Climatologist University of Vermont Department of Geography 200 Old Mill Building 94 University Place Burlington, Vermont 05405-0114 U.S.A. (802) 656-2146 (phone) (802) 656-3042 (facsimile) http://www.uvm.edu/~vtstclim http://www.uvm.edu/~dclimnet http://www.uvm.edu/~swac http://www.uvm.edu/~geograph/?Page=Dupigny-Giroux.php http://www.geospatialcareers.net/people/dupigny_giroux.html http://www.vermontwoman.com/articles/0412/climatologist.shtml * * * * * * * * * * * * * * * * * * * * * * * * * * * * ****** --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com