Stable & Normal

Half way through the Ninth month.  The weather outlook remains rather stable.  Sip & read.

A warm-to-hot weekend ahead.  Temps in the upper 80s to lower 90s; cooler over the Sound.  Later Sunday a weak system may have enough strength to bring clouds and a few showers, mainly north of Chehalis - but that has been charted weaker by the day.  Either way, the entire PNW should cool down a bit next week, with pleasant afternoon temperatures for September.  Enjoy.

As you know, we have been monitoring a probable “change” in pattern beginning NEXT Friday for well over a week now.  Should models verify, a cold front will spin south along the BC coastline, ushering in fall temperatures along with on & off showers for the weekend of Sept 23,24 and a few days thereafter.  Appropriate wx for the Autumnal Equinox on the 23rd.  Most current solutions keep the main Low offshore, as it skirts south along the OR coast, which would spin bands of moisture over the west side of the Cascades through mid-week (Sept 27).  We could get a few thunderstorms out of this pattern, as well, esp late in the cycle, as that Low crosses into northern CA.  That’s the trend, anyway.

For Thu & Fri, Sept 28,29, a dry pattern may return, with mild temperatures & plenty of sunshine to end Sept and get October underway that weekend.  We do not see temps reaching into the 80s, at this time (except possibly Medford area).  Our current warm-up could be the last of 2023.

🌀LEE remains a notable threat to the NE tip of the US - along the Canadian border.  It will weaken below hurricane strength, but has a large wind field to ‘drive’ seawater into the coastal communities.  Rain, too.  The next system (would be named NIGEL) will likely remain offshore, turning away from the US & Canada a week from today - as a 'Fish Storm'.