abstract:The Arctic front is the semipermanent, semi-continuous weather front between the cold arctic air mass and the warmer air of the polar cell. It can also be defined as the southern boundary of the Arctic air mass.
Withtheir large, slightly webbedfrontpaws, polarbearsarepowerful swimmers. Native tothe Arctic, thebears have beenspotted swimming hundreds of miles out to sea.
The same brutal Arctic cold front that's already delivered subzero temperatures across the upper Midwest and Northeast is forecast to bring ice and freezing rain to the South and Mid-Atlantic states on Friday.
