| An "extreme" Arctic outbreak is possible next week as polar vortex targets northern U.S.A.
Weathercasters are saying it is the most severe cold air outbreaks in years.
The deep freeze with sub zero temps is possible from the Upper Midwest to the Northeast next week as the jet stream crashes south and a large lobe of the polar vortex plunges toward the Great Lakes.
Confidence in a significant outbreak of Arctic air is high, but it's too soon to project its exact strength and final legacy. Model predictions for the intensity of the cold snap range from historic and record-breaking to rather run-of-the-mill for midwinter.
In West Virginia, the current forecast next week is zero to below.
Stay tuned. | 
