"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...

A week-long, unusually cold Arctic outbreak will bring frigid conditions to most locations east of the Rockies starting today ...

Mariposa California's original daily updated online newspaper is the premier site for news and information on Yosemite, Mariposa, California and United States ...