Temperatures are inevitably getting warmer East and West as we move deeper into spring. That means more rain than snow, especially in the Northeast with each storm system. Overall, the best chances for new snow are staying West between Thursday and Monday.
Colorado, Utah and New Mexico: Chance of light to moderate snow at the higher elevations in Utah (rain in the valleys) from Friday night through mid-day Saturday. That snow moves into Colorado Saturday mid-day through Saturday night and early Sunday, then drier until Monday-Tuesday. Again, snow levels stay high. In New Mexico, some light to moderate rain/snow between Friday night and Saturday night. Snow levels stay high.
Wyoming, Montana and Idaho: Light to moderate snow hits the higher peaks (valley rains) between Friday night and Saturday night followed by a brief lull. A second slightly colder storm system arrives mid-day Sunday and continues through Tuesday morning with moderate snow amounts (a few heavy pockets in Idaho and Montana). This is the best chance for widespread snow.
Pacific Northwest: A series of storm systems will deliver moderate to heavy rain and snow between Thursday and Monday. Snow levels on Thursday-Friday start very high above 10,000 feet then gradually fall to near 5,000 feet over the weekend.
California: The first storm arrives on Friday and exits Saturday with light to moderate valley rain and snow only at higher elevations. The precipitation runs from Mammoth to Tahoe and north. A second storm system brushes Northern California between mid-day Sunday and Monday with light to moderate snows at the higher elevations. That storm looks a touch colder.
Northeast: Temperatures will limit snowfall. A storm system moves in mid-day Thursday with mostly rain and as it exits late Friday into early Saturday the rain may change to light snow at some of the ski resorts in northern New Hampshire, northern Vermont and Maine—little to no accumulation. Then, a cold front arrives late Sunday into Monday morning with light snow.