High pressure will bring one more hot, dry and sunny day for inland areas tomorrow before the ridge breaks down and a low pressure and associated cold front brings a cooler and wetter weather pattern. From Saturday to Sunday it will feel like Fall arrives almost overnight! Temperatures take a ten degree dive and continue to drop into next week with highs dropping 5 to 10 degrees below normal instead of the 10 to 15 degrees above normal we’ve been! Showers will begin overnight Saturday at the coast and then spread inland during the day with isolated thunderstorms possible, mainly in the afternoon with most activity holding off along the Cascades and east side. This will mainly be a southern Oregon event with little activity occurring in northern California.
Into next week the cooler pattern will continue with on and off showers as disturbance slide down the trough that will settle over the Pacific Northwest through this time period. While the timing may change, at this time it looks to bring showers on Tuesday with a potentially significant rain event on Friday into the weekend. While it’s too early to tell, this may be the wetting rains that could end fire season.
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Meteorologist Megan Parry