The calm weather we have had will end tonight as a storm system sets in. This system will bring gusty winds and abundant mountain snow to the southern Cascades and coastal mountains. A winter storm warning will go into effect at midnight for Northern Trinity County and the Southern Shasta County Waterfalls. Snow levels are forecast to be around 1,500 feet for this region with 3-12 inches of snow expected. In the Sierra, a winter weather advisory is in effect for the western slopes as snow levels will be around 3,000 feet. In general, 3 to 10 inches of snow will be possible and gusty winds will be possible. The main focus of this forecast for the valley will be the expected winds. A wind advisory will go into effect at 7:00 a.m. on Monday and will last until 4:00 a.m. on Tuesday. Sustained winds of 20-30 mph are possible with gusts up to 50 mph.
After Monday’s hectic day, this system recedes, leaving room for temperatures to return to the low in the mid-1950s for the highs. We’ll continue to see showers at times until Wednesday, but Wednesday is shaping up to be the driest day of the work week before another system moves Thursday and Friday. This will lead to windy conditions, another round of downpours in the valley and snow in the mountains. As the weekend approaches, things appear to be drying out and clearing up, setting the stage for a dry model starting next week.