Judah Cohen
Dr. Judah Cohen is director of seasonal forecasting at AER.
2/5/2019 - 2 min read
Disruption of the polar vortex creates winter whiplash
A warming climate is producing warm extremes in all seasons, and in sharp contrast to the historical cold at the end of January, the first full week of February ushered in unseasonably warm weather. Blame it on the splitting of the polar vortex.
10/19/2018 - 2 min read
AER winter forecast predicts mild temperatures in northern and eastern U.S., cold in the southwest
The 2018–19 winter forecast shows below-normal temperatures for parts of the US, with above-normal temperatures in the northern and eastern U.S.
3/9/2018 - 4 min read
Splitting the polar vortex: Is the globe spinning the wrong way?
Europe and North America experienced cold Arctic winds, while it was relatively balmy at the North Pole. Blame it on the splitting of the Polar Vortex.
12/21/2017 - 2 min read
AER winter forecast predicts cold in northern and eastern U.S., mild in southwest
The 2017-18 winter forecast from Verisk’s Atmospheric and Environmental Research (AER) shows below-normal temperatures for the northern and eastern United States, with above-normal temperatures in the southwestern and southcentral U.S.