Upper Columbia Basin

Advisories Radar Cities

Air Stagnation Advisory

Expires 4:00 PM EST on November 21, 2018
Statement as of 12:27 PM PST on November 20, 2018

... Air stagnation advisory remains in effect until 1 PM PST
Wednesday...

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

* Timing... through Wednesday.

* Impacts... air quality has the potential to be degraded,
especially during the overnight and morning hours. Before
burning leaves or yard waste, check for local burn bans.

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.




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