Widespread rain and mountain snow was to stretch from the Pacific Northwest and Northern California coasts to the Rockies and high Plains.
Snow and rain showers also were expected in the Northern Plains, with the heaviest snow expected to fall before noon. In addition, a cold front was expected to reach Southern California by nightfall, producing mainly scattered light rains.
The Desert Southwest, on the other hand, can expect a sunny and warm day, thanks to high pressure holding in place.
A nearly stationary front across the southern states was to bring an area of unsettled weather from the Southern Plains eastward to Georgia and the Carolinas.
Widely scattered showers and thunderstorms were expected to fire across the region, with heavier precipitation likely over the Tennessee Valley and portions of the Southeast.
Elsewhere, light snow showers were possible over portions of the lower Great Lakes and northern New England as a weak trough remains in place.
Temperatures in the Lower 48 states Friday ranged from a low of minus-13 degrees at Stanley, Idaho, to a high of 90 degrees at Laredo, Texas.