What I do

I am a Visiting Scientist at MIT’s Parsons Lab, which is part of the Civil and Environmental engineering department, but my main position is Director of Seasonal Forecasting at AER [Atmospheric and Environmental Research]. I am currently working on the impacts of snow cover and sea ice variability on winter climate. I am also interested in accelerated Arctic warming and its influence on extreme mid-latitude weather and applying novel statistical techniques to subseasonal to seasonal prediction. I am also interested in decadal temperature trends and explaining those trends with large scale climate models. I received my Ph.D. from Columbia University and was also a post-doc at the NASA Goddard Institute for Space Studies.
Snow Cover Model

Media | News

» A Closer Look at the Polar Vortex’s Dangerously Cold Winds
» Judah Cohen on improving seasonal weather forecasting
» What Makes a Nor’easter a Nor’easter?
» Polar vortex could unleash winter wallop by January
» Chilly November in North America
» October 2018 Snow in Siberia
» As the Arctic warms, nor’easters may get worse
Brandon Miller . CNN | 21 March 2018
Matt Simon . Wired | 13 March 2018
» Europe was Colder Than the North Pole This Week. How Could That Be?
Kendra Pierre-Louis . The New York Times | 1 March 2018
» Global warming’s cold spell?
» Seasonal forecast guru: Buckle up for a rollercoaster winter
WCVB Channel 5 | 21 November 2017
» Snow in Siberia presents mixed signals about winter outlook in eastern U.S.
Jason Samenow . The Washington Post | 16 November 2017
» Father of Snow Theory Sees Polar Vortex Caged Until January
Brian K. Sullivan . Bloomberg | 1 November 2017
» ‘The person happiest about all this snow’
Bella English . The Boston Globe | 17 March 2015
» ‘Fall Predicts Winter’ | National Science Foundation Special Report
» ‘Winter experts predict ’active and interesting’ season for Boston area’
Harvey Leonard . WCVB TV | 1 December 2014 [a very prescient forecast!]
» ‘AER’s Judah Cohen produces amazingly accurate winter outlook’
Jason Samenow . The Washington Post | 25 April 2013
» ‘Bundle Up, It’s Global Warming’
Judah Cohen . The New York Times | 25 December 2010

Research Papers

» Please click here for a downloadable list of papers I’ve published since 2002.


» Married to Sherri. | We have a daughter named Gabriella and twin sons, Jordan and Jonathon.
» Interests :: Weather Forecasting | Running | Skiing | Stock Market | Travel | Ultimate Frisbee
The Cohen Family

Getting in Touch

» Room 48-333 | Massachusetts Institute of Technology | Cambridge
» 781.761.2288
» For e-inquiries, please use the form below ::



Comment | Inquiry