The biggest impacts from the strong winter storm that arrived overnight have already moved through northern California but more rain and snow showers can be expected through at least early Friday. Modest scattered rain showers will be possible in the valley tonight, and there is still a very slight chance for a thunderstorm popping up. Snow showers will continue to fall in higher elevations through early in the day on Friday and snow levels are continuing to hover around 2000'. The Winter Storm Warning has been allowed to expire in portions of Trinity and Siskiyou County this afternoon, but Shasta County will continue to be under the warning through 6pm Thursday evening. The Winter Storm Warning is set to continue through 6am Friday for the Western Slopes of the Sierra, Foothills, and Eastern Shasta County. Moderate to heavy snow showers will continue to be possible in the mountains tonight but will become scattered by early Friday. An additional 2 to 8 inches of snow can be expected from Thursday evening through Friday morning above 3000'. Scattered rain showers will be possible for the northern end of the valley on Friday morning, but do not look likely South of Tehama County. Temperatures will dip into the mid to high 30's in the valley overnight, and mountain areas will mostly dip into the 20's for the start of your Friday. High temperatures will top out in the high 40's to low 50's in the valley on Friday and mountain areas are projected to end up in the mid 30's. We are expecting to be mostly dry but cloudy for your Friday afternoon.
A wet system will track through the Pacific Northwest early Saturday and will bring the potential for some modest rain and snow showers to areas just South of the Oregon border. The potential for showers will sag as far South as the Northern end of the valley in Shasta County. Cloudy but dry weather is expected on Saturday evening, and then some clearing can be expected on Sunday. We'll have partly cloudy to mostly sunny skies on Sunday afternoon Temperatures are expected to become warmer for your afternoon on Sunday, with valley areas topping out in the mid to high 50's. Cloudy skies and the chance for showers are expected to return for Martin Luther King Jr. Day on Monday. Showers will become more likely as we head through Monday night into Tuesday. Snow levels currently look like they will be much higher than what we've experience this week, but heavy snowfall will be possible in higher elevations. Cloudy skies and the potential for showers will then linger through the middle of next week.