Northeast Mountains Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Air Stagnation Advisory
Issued: 2:52 PM PST Nov. 17, 2018 – National Weather Service

... Air stagnation advisory remains in effect from 7 am Sunday to
1 PM PST Wednesday...

* air quality... high pressure will cause strong temperature
inversions, trapping pollutants near the surface.

* Timing... Sunday through Wednesday. Strongest temperature
inversions expect Monday and Tuesday.

* Impacts... deterioration of air quality is likely, leading to
impacts to those with respiratory issues.

Precautionary/preparedness actions...

An air stagnation advisory indicates that due to limited movement
of an air mass across the advisory area... pollution will increase
to dangerous levels. Persons with respiratory illness should
follow their physicians advice for dealing with high levels of
air pollution.