An atmospheric pattern change will start on Tuesday, bringing cooler temperatures across the area as well as southerly winds into the Shasta Valley and east of the Cascades. Slight thunderstorm chances (10-20%) are present over western Siskiyou County and along the Cascades. On Wednesday, a cold front will bring widespread showers across the area, with the highest rainfall amounts west of the Cascades. The front's arrival will also bring gusty winds to coastal cities, into the Shasta Valley, and over the east side. Showers continue into Thursday morning and winds ease. Light scattered showers may continue into the weekend.