Not Too Bad

Posted by Rufus La Lone on

Friday August 25
Thunderstorms woke many up around western OR & SW WA early this a.m.  Let’s take a peek at the last days of summer 2023 before school starts.
There could be a few thunderstorms develop along the Cascades yet this weekend, but otherwise, expect warm-to-hot temperatures.  Low pressure trough offshore from OR will help to elevated temperatures - western OR should top in the 90s, esp Sunday; a bit cooler over the Sound, of course.  
Next week is trending COOLER with a chance for showers - primarily over the Puget Sound north - because the weekend Low will shift eastward over the PNW.  Tue through Thu could present some of the coolest afternoons in quite some time - for all of the PNW.  It will begin to warm a bit on Fri Sept 1, setting up a decent holiday weekend to end ’summer’.
Earlier we saw the models suggesting a heat-up (high 90s+) for Labor Day weekend, but now the trend is for MUGGY conditions with warm temps mostly in the 80s-low 90s during the extended holiday weekend.  There is a possibility for broadly scattered thunderstorms overnight Sunday into Labor Day, Sept 4, as a weak Low positions itself just west of Brookings, rotating mid-level moisture into the PNW.  We’ll see if this verifies.  
Showers & thunderstorms from the Low will circulate north into WA as the short, ‘back-to-school week gets underway. Sept 5-8 is looking cool in regards to temperatures, because a cool High pressure dome (weak) is charting to drop in from the Canadian interior, for ‘fall-like’ temps that week.  
Overall, the last week or so of summer before school starts is looking decent, with a scattering of 90 degree days and cooler afternoons, as well.  The Sept 9,10 weekend following Labor Day is trending warm & dry.  
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