Precipitation across the West will become increasingly widespread today as a low pressure system pushes inland, according to the National Weather Service.
Rain is expected across much of California, with snow in the Sierras – the coastal areas may have periods of heavy rainfall, as well as, the higher elevations of California, the Pacific Northwest and the Intermountain West may have heavy snow.
The extent of the heavy snow will spread across much of the Rockies and the adjacent northern Plains on Saturday as the system moves east. Snow levels will lower as the upper-level trough moves inland, and snow is expected to eventually fall at all but the lowest valley elevations. A vast majority of the counties from central Washington/Oregon to Minnesota/Wisconsin have winter weather advisories, winter storm watches and blizzard watches in effect.