An Arctic air mass is encompassing the eastern two-thirds ... allowing the cold air to travel into the continental U.S., federal researchers wrote in a recent post. Besides the polar vortex ...

An Arctic air mass is blanketing the eastern two-thirds ... allowing Arctic air to surge deep into the continental U.S., according to federal researchers. Additionally, a robust ridge of high ...

A “strong cold front will usher in a dangerously cold Arctic air mass” across much of the ... Areas east of the Continental Divide have the potential of seeing daytime temperatures below ...

The Arctic air mass will be in Colorado Friday afternoon ... beneficial for snow showers at resorts east of and on the Continental Divide, and should enhance snowfall totals for the Front Range ...

Arctic air and lead temperatures to plummet to bone-chilling levels. The "Beast from the East" is an infamous snow storm which is formed by a polar continental air mass while pressure is high in ...

“There is an arctic air mass that’s working its way down into much of the continental United States (Friday) into (Saturday), and it’s forming what’s called an arctic front. Behind that ...

It was a cold day across the region today with many places north of I-40 not making it above freezing. Temperatures will drop ...

(CBS DETROIT) — An arctic air mass will impact all of southeast Michigan through Wednesday as the coldest temperatures of the ...