11/29/2017, 10:30 am EST

Polar Vortex Pattern Emerging in U.S. in 9-10 Days

After a mild autumn and warm start to December the climate pattern reverses much colder as a “polar vortex” regime evolves in 9-10 days lingering into middle December. Early season chill especially in the Midwest with widening/deepening snow cover is expected.
11/28/2017, 10:27 am EST

Colder Pattern Change Ahead in Europe Featuring Developing and Widening Snow Cover

Negative North Atlantic oscillation unfolding and causing a series of pattern-changing cold troughs across Europe. The result is early season snow cover which is a surprise given the very warm autumn.
11/25/2017, 7:43 am EST

Forecast Factors for U.S. Winter

Pictured: The Climate Impact Company cold season 2017-18 U.S. heating degree day forecast. Climate discussion: The winter 2017-18 climate pattern is locking in. Here are the contributing factors.