More cold air is coming next week as well with long range numerical guidance indicating temps. will stay WELL below normal for most of next week.
The intense cold over the north, contrasted with the warmth in the tropics has produced a jet stream with winds approaching 180 mph around 6 kilometers above the surface (`30,000 feet).
It may surprise you to learn though that for the U.S. as a whole, this has been a very warm winter. So far, it’s the 6th warmest on record! See the info below from the NOAA Nat. Climate Data Center.