Polar Vortex Makes Much of US Colder Than Greenland, but Warmth Is Coming. Then More Cold WASHINGTON (AP) — The polar vortex hit its peak across much of America on Wednesday, with an icy grip ...

SIOUX CITY (KTIV) - It was a day of cold for all of Siouxland and snow for parts of northeast Nebraska that was able to leave 5.5 inches in Norfolk. The snow was moving out of the KTIV viewing ...

The cold is sharp but transitory. Monday will see conditions moderate a bit, with highs in the low to mid-50s, then reach the 60s on Tuesday. At this point, we'll need to be watching another ...