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  • Posted

9:30pm Friday...

A quick post this evening. Here’s a summary:

1. We are done with 100 degree temps, we’ll be in the mid 90s tomorrow, then lower 90s Sunday

2. Humidity remains relatively high this weekend

3. Smoke coverage will be similar tomorrow, if not a bit less, west of the Cascades

4. Most of the smoke disappears Sunday afternoon; both at lower elevations and high overhead

5. 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

  • Posted

Monday, Oct. 25th, 12:00 P.M.

Good afternoon!

Wind is gradually relaxing along the coast and across our western valleys, but we're still observing some decent wind gusts. High wind warnings and wind advisories have expired, and the wind should continue to back off later today and tonight. However, heavy showers and isolated thunderstorms are expected (on and off) for the remainder of the day, so keep the jackets handy. Temperatures will only reach the mid to upper 50s. 

Wet weather carries into Tuesday and at least Wednesday morning before we potentially get a break. The back half of Wednesday and the first half of Thursday should feature mainly dry weather. The warmest day of the week will be Thursday with highs in the low to mid 60s.

A weak to moderate atmospheric river is expected to slowly move through our region late Thursday into Friday, bringing additional rain and high elevation snow. High pressure will dry us out toward the end of the workweek. 

Most signs are pointing to a cool, mostly dry holiday weekend. We'll let you know if that changes, but Halloween evening could very well be dry for the kiddos.

Have a great week!