We had another active day over the north state. The main impact continued to be moderate to heavy snowfall in the mountains and that has caused some big travel issues. The Winter Storm Warning has now been extended through 8pm tonight in portions of Trinity County and through 11am Tuesday in the Shasta County Mountains and the Sierra down to 3000'. Snow levels have been hovering down to around 3000' in the Sierra and down to around 1500' in the Northern Mountains. Most of the valley had light to moderate rain showers today but the northern end of the valley in Shasta County did have thunderstorms this afternoon. Heavier rain was observed in the areas impacted by the thunderstorms. Pea sized hail has also been observed in Shasta, Tehama, and Glenn Counties today. Winds have been out of the south up to around 20mph, with gusts up to around 30mph in the valley this afternoon. Temperatures topped out in the 40's to mid 50's in the valley, and in the 30's to low 40's in the foothills and mountains.
The trough of low pressure slowly tracking down the coast will cotninue to dominate our forecast over the next several days. Showers will continue through the middle of this week. The best chance for showers will linger in the mountains, but valley areas will continue to have the potential for modest showers and thunderstorms. We'll have a better chance for showers on Tuesday in the valley and then scattered showers will be possible on Wednesday. Mountain snow is expected into your Wednesday forecast. Snow levels will dip to around 2000' in the Sierra from Sunday night through early Monday, but will rebound to above 3000' on Monday afternoon. Snow levels will mostly stay between 3000' to 4000' on Tuesday and Wednesday. Temperatures will dip into the 30's to 40's in the valley over the next several nights, and will top out in the 50's through Wednesday afternoon. Mountain areas will dip into the teens to 20's over the next several nights, and will top out in the 30's to 40's.
Thursday and Friday are expected to be cloudy with a slight chance for some showers lingering in our region. Temperatures will become slightly warmer for the end of the work week. Valley areas will be back in the low to mid 60's and mountain areas will be back in the mid to high 40's. We'll have similar conditions on Saturday but the latest models are hinting at another wet system moving through on Sunday.