Chain reaction could unleash cold polar vortex across United States through April
Winter weather lingers as a major shift in the weather pattern could have millions across the United States once again ...
The Washington Post11d
Why winter was colder than average in the U.S., and what spring will bring
Not only did it give way to meteorological spring on March 1 in the Northern Hemisphere — it ended the coldest three month period in the United States since the winter of 2013 to 2014.