Weather Advisory for several inches of snow covers most of the eastern plains and Denver area until 11 a.m. Wednesday.

Arctic air will plunge from the northern Rockies and Great Plains, crossing the Gulf Coast and Midwest on Saturday night and the Eastern Seaboard on Sunday night. "By Tuesday, the entire Lower 48 ...

Extreme cold could expose residents of several states to conditions like hypothermia and frostbite over the weekend.

Today’s record low is also the all-time record low for Harrisburg which dropped to -22F in 1994. Tonight will be another very cold night with many areas dropping near 0F, and some sinking below zero.