We had warm temperatures and sunny skies across northern California Saturday, but a welcome cooling trend is ahead for the next few days. High pressure off the coast of California in the Pacific was the main driving factor in our forecast on Saturday, but low pressure tracking into the Pacific Northwest will flatten the ridge Sunday into Monday. Temperatures topped out in the low to mid 90's in the valley, 70's to 80's in the foothills, and 80's to lower 90's in our mountain areas Saturday afternoon. Winds will start to pick up out of the southwest tonight, and will get stronger as low pressure tracks through to our north on Sunday. The gusty southwest winds and low humidity will drive elevated fire danger on Sunday. A Red Flag Warning for high fire danger has been issued for Modoc County from 2pm through 7pm Sunday. Sustained winds out of the southwest to 25mph, with gusts to 40mph will be possible in Modoc County Sunday afternoon. Most of our region will have southwest winds to around 15mph on Sunday, while the valley has winds out of the southeast. Tempratures will dip into the 50's in the valley overnight, and top out in the mid to upper 80's Sunday afternoon. Foothill areas will have low temperatures in the 50's to 60's and high tmeperatures in the 70's to lower 80's on Sunday. Mountain areas are projected to start out in the 30's to lower 50's on Sunday morning, and high temperatures in teh 70's to lower 80's on Sunday afternoon. Fire danger will be elevated due to humidity dropping to below 10 percent, and the gusty southwest winds.
A more robust area of low pressure will track into the Pacific Northwest on Monday, and that will bring even cooler temperatures, gusty southwest winds, and the potential for showers back to our region early in the week. Valley areas are projected to top out in the lower 80's on Monday, while foothill and mountain areas end up in the 60's to lower 70's. Showers will be possible close to the coast through the day on Monday, but are not expected to move into the rest of our region until Monday night. We also have a Fire Weather Watch set to be in effect from noon through 10pm Monday in areas of Modoc, Lasse, and Plumas Counties due to gusty southwest winds and low humidity. Showers will track across most of northern California Monday night through early Tuesday. The latest models have us drying out by mid day Tuesday, but our temperatures will continue to cool. Highs in the valley areas projected to end up in the mid 70's on Tuesday, while mountain and foothill areas top out in the 60's. We'll then dry out and warm back up to around average from the middle to latter part of next week.