Widespread Arctic air outbreak anticipated across much of the U.S. through mid-January
The United States is bracing for a widespread cold air outbreak, anticipated to affect much of the lower 48 states through mid-January due to a strong mid-level high pressure over Greenland and the negative Arctic Oscillation phase. Expected severe conditions include sub-zero temperatures and wind chills, widespread wintry precipitation, and potential flooding along the Eastern Seaboard.










