In more than 100 locations, the cold could lead to record low temperatures, with a similar number of record cold high ...

A winter storm is set to bring snowfall from the Central Plains to the mid-Atlantic, while dangerously cold air spreads from the Great Plains to the Northeast.

(CBS DETROIT) — An arctic air mass will impact all of southeast Michigan through Wednesday as the coldest temperatures of the winter so far arrive this week. A cold weather advisory is in effect ...

There are five main air masses which affect the UK as detailed by the map below. A polar continental air mass comes from eastern or north eastern Europe. It brings dry weather. As it comes from ...

PROVIDENCE – Snow squalls and another arctic air mass are in the forecast for the work week. Snow is again likely as "a fast-moving clipper system will bring light snow accumulations late ...

The weather an air mass brings is determined by the region it has come from and the type of surface it has moved over. There are five main air masses which affect the UK as detailed by the map below.