A low-lying cloud layer settled over western Washington and Oregon recently, creating an autumn‑like atmosphere in the lowlands.
Impact on the Lowlands
The clouds were situated low enough to soften sunlight and make the air feel cooler, contributing to the seasonal feel.
Contrast with Coastal Mountains
In the mountainous regions right along the Pacific Coast, the cloud layer did not reach the higher elevations; the peaks remained clear and stayed above the pall.
This contrast highlighted the vertical stratification of the atmosphere over the region.