Air Stagnation Advisory for Southwest Interior, WA
Issued by The National Weather Service
Seattle/Tacoma, WA

2:19am PST, Wed Dec 30

… AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST MONDAY… … DENSE FOG ADVISORY IS CANCELLED…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE DENSE FOG ADVISORY FOR THE SOUTHWEST INTERIOR. PATCHY FOG MAY STILL FORM IN SPOTS AND THE SUB-FREEZING TEMPERATURES MAY ALLOW PATCHY FREEZING FOG TO DEVELOP.

* AIR QUALITY… WILL DETERIORATE DUE TO COLDER AIR NEAR THE SURFACE BEING TRAPPED BY WARMER AIR ALOFT. THIS WILL ALLOW POLLUTANTS TO INCREASE AT THE SURFACE.

* AIR QUALITY IMPACTS… WOOD SMOKE… VEHICLE… OR INDUSTRIAL EMISSIONS MAY DEGRADE AIR QUALITY THROUGH EARLY NEXT WEEK. THIS MAY HAVE AN ADVERSE IMPACT ON THOSE WITH RESPIRATORY ILLNESSES.
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Editor’s note:
The Olympic Region Clean Air Agency (ORCAA) will issue a burn ban if required.
Click here