Windy conditions increased motorist risk and stressed rangeland, pastures and winter grain crops, according to the U.S.

You can see some of the forecast lows in the map below. Subzero lows may spread as far south as Oklahoma ... of Montana and North Dakota. Wind chills in the Northern Plains could reach into ...

Potent Arctic high ... south and central portions of the country it may vie for coldest of the season. Temperatures are expected to fall to near minus-40 degrees in a big chunk of the northern ...