Dry Period Ahead

Plenty of rain yet to go, however, we do see an extended pleasant dry cycle returning in October.  Refill that Mug.  Here goes - -

Moderate-to-heavy rainfall today, as the main front of this series passes overhead (this morning’s satellite image below). Intense showers, along with a thunderstorm or two thrown in a the colder air behind the front moves onshore.  We see the potential for a relatively small, but strong, Low pressure cell making landfall near Astoria on Wed around 3 or 4 in the morning.  This tight system could produce a strong wind field, esp along the central-to-north OR coast and the Willamette Valley.  Please heed any Nat’l Wx statements that may be released.  Yet another, much less powerful, ‘wave’ Low will likely move onshore Thu morning, keeping breezy conditions going, along with added rain/showers.  Drying out a bit on Friday, with some of the coolest daytime temperatures of the season, to date.  There will be a few showers early in the day Friday.

Next Weekend.  Last day of Sept 2023 (Saturday) will present as cool & dry.  Showers east of the Cascades, primarily over OR.  Sunday Oct 1 looks mild, dry west of the Cascades, but quite wet east of the mountains for OR, WA & ID - as moisture circulates around a Low over northern NV.  

Rain/showers over the eastern basins of OR, WA & ID will continue into Mon Oct 2nd.  A weak system may also bring a ‘quick-shot' of rain to west side locations on Mon.  By Tue though, model solutions chart a MILD and sunny period for several days in early Oct.  Gradual increase in afternoon temperatures, peaking in the Oct 9-12 period.  There is a chance for a spurt of rain and/or showers over Vancouver Is. & the Puget Sound Thu night Oct 5, but other than that, the PNW could be DRY from Wed Oct 4 through Thu Oct 12.