We still have an upper level high pressure ridge over the area though it is weaker today, allowing a weak disturbance to move across. This is giving us a southwesterly flow that has pushed in the cooler marine layer, and clouds, that will hang around all day. The high pressure will move east tomorrow as a trough pushes towards the area and by tomorrow night, late, we have a 20% chance of rain that gradually increases to 40% by Sunday morning, then a weak front pushed through making rain likely Sunday night into Monday morning. The National Weather Service forecast finally mentions snow for the first time also, over in the Cascades and the Willamette Pass, though not much accumulation is expected. After that, nice (dry and warm) weather appears to return mid week lasting through at least Friday.
GM
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