Air quality is hazardous in Chico, Oroville and for many areas in the Sierra. Fire danger is also high with RED FLAG WARNINGS in place for some. Temperatures today will be in the upper-80s to low-90s with smoky haze or overcast continuing.
Winds are expected to pick up from the south today in the afternoon and evening gusting 20-25 mph in the mountains and foothills and gusting up to 20 mph in the valley. This will increase fire danger and possibly give ongoing fires quicker growth in the northward directions. A RED FLAG WARNING is in place in Siskiyou and Modoc counties due to the expected increase in winds.
The reason for the strong winds in a low pressure system off the coast. It is still pretty far out but as it moves closer, winds will increase.
Tomorrow this system will be even closer and strong which means strong winds tomorrow. A RED FLAG WARNING is in place for the Sierra-Cascades mountains and foothills for Monday and again for counties near the Oregon border as well. Winds again will be coming in from the south and blowing towards the north. This time gusting up to 20 mph in the Valley and gusting up to 35 mph in the mountains and foothills.
The good news with all of the wind is that it will help mix out a lot of this smoke and carry it away from our area. The improvement won't be instant, but you can expect a gradual daily improvement in air quality assuming more large fires don't pop up.
The low-pressure system off the coast will move inland on Thursday and Friday. This will decrease daily highs into the low-80s to upper-70s in the valley and bring a few clouds in the valley as well. It will also bring more moisture whinch in turn could spark a few showers or thunderstorms in the mountains farther north or towards the coast. These will not be significant, but its something.
We will warm up again and stay sunny next week with a dry, north wind returning.