No, it’s not wildfire smoke, but once again Puget Sound area air quality is on the decline. This time, it is our current dry, sunny, fall weather pattern creating poorer air quality.
High pressure aloft has put a lid of warmer air on top of the cooler-than-average air near the surface, creating what is called a temperature inversion.
Whiplash weather turns cooler and drier this week
These inversions trap pollutants close to the surface, creating stagnant conditions. The warmer air aloft has freezing levels near 9,000 feet this morning.
This morning, many Puget Sound area air quality sensors rose from the good to moderate category. The Puget Sound Clean
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