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Judah Cohen

Dr. Judah Cohen is director of seasonal forecasting at AER.

February 5, 2019

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…

Weather Forecast
October 19, 2018

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.

Aer Polar Vortex
March 9, 2018

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.

Aers Winter Forecast
December 21, 2017

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…

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