A quick post this evening. Here’s a summary:
- We are done with 100 degree temps, we’ll be in the mid 90s tomorrow, then lower 90s Sunday
- Humidity remains relatively high this weekend
- Smoke coverage will be similar tomorrow, if not a bit less, west of the Cascades
- Most of the smoke disappears Sunday afternoon; both at lower elevations and high overhead
- Heatwave #4 this summer will end up with 6 consecutive 90+ degree days
A thick layer of smoke kept us below 100 west of the Cascades today; we’ve been thinking all this week it might happen. Smoke modeling did pretty well!
This was our 22nd day at/above 90 degrees in Portland this summer.
But Salem just broke the all-time record. Today was the 35th day at/above 90 degrees. Those records go back into the late 1800s!
Strong high pressure remains nearby through Sunday, but increasing (cooler) onshore flow means temperatures drop a bit over the weekend.
HRRR smoke modeling has done relatively well the past two days, and it shows slightly cleaner air (at ground level) tomorrow morning
Then a 2nd push of marine air tomorrow evening really clears things out. By Sunday, just about all low-level smoke should be gone…we’ll see!
That’s it for tonight… Enjoy your weekend!
Chief Meteorologist Mark Nelsen