A zonal flow has set up over the region which will allow disturbances to move through the next couple of days providing a mostly sunny to partly cloudy skies through the day. Temperatures will also moderate closer to normal but still on the warm side for Spring. Tomorrow a weak cold front will bring light showers to the same areas that saw some precipitation yesterday, mainly late in the day for the Coast, Coast Range, Umpqua Basin and potentially to the northern Cascades. Once the front passes a trough will set up over the Pacific Northwest and shortwaves will provide more widespread shower activity both Thursday and Friday.
With a trough setting up expect to see temperatures drop to just BELOW normal, the first time in several weeks, as the cold air from the Arctic flows into the trough over the region. A weak ridge will build in briefly over the weekend warming temperatures about 5 degrees above normal with highs in the mid-70s for west side valleys and upper-60s, low-70s for areas east of the Cascades. Without a strong high pressure building in we will lack a blocking pattern that keeps storms north or south of us. Rather we will be in a slightly more active pattern, with the potential for the next system to hit the area early next week. This far out is something to mention and we will continue to monitor the track of this storm.
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Meteorologist Megan Parry