For the past two weeks or so, it seems as if the Northwest has grown out of it's cool Spring and jumped right into a decent summer. Being down here in Southern California I haven't checked out any of the weather up there lately but I did this morning.
It looks like the upper levels of the atmosphere over the next couple of days will be "weak". What I mean by that is the airflow will not be as strong at the 500mb pressure level and there doesn't appear to be any trough (cooler and wetter) or ridge (warm and sunny) that parks itself over the area.
This is a typical summertime phenomenon as it means there is a weak onshore push in the mornings and the afternoon heating of the atmosphere will clear out the clouds for a partly sunny or mostly sunny afternoon.
That's why the forecast for the next week calls for highs in the mid to upper 70s for almost 7 days straight. Almost unheard of for the Northwest. I haven't looked at longer range models (out 15 days) but I wouldn't be surprised to see this pattern continue.
Enjoy the sunny weather up there Pacific Northwesterns! And remember, If it's sunny there, it's always a little more sunny down here in So Cal. ;)
I'll have another blog in a few days detailing some local California weather and what I'm learning at the National Weather Service
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