Low pressure system moves out into the Atlantic Ocean early today in the northeast resulting in rain chances gradually diminishing in the early evening in the northern part of the Mid Atlantic state and then late this evening in eastern New England. A cold front moves into the the region overnight and Sunday producing snow shower chances in some of these same areas with minimal accumulations with an inch or two at most possible mainly in northern NY, NH, VT, and western ME.
The western third of the country becomes increasingly active over the weekend with rain building towards the west coast early today with precipitation chances developing further east towards the Rockies later this evening and overnight and continuing into Sunday. The heaviest snow will fall in the Cascades and Sierra Nevada with others such and Salt Lake City, Flagstaff, and Grand Junction also seeing some accumulations. The heaviest rainfall will occur from the Bay Area in CA north through western WA with rain showers possible for areas such as Los Angeles, San Diego, Las Vegan and Phoenix.
A disturbance builds into the eastern Dakotas and Midwest Sunday evening and overnight producing accumulating snows for eastern ND, northern MN and WI and the UP of MI.