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Air Stagnation Advisory

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1001 AM PST Thu Dec 14 2017

...STAGNANT AIR CONDITIONS CONTINUE TODAY...

WAZ039-142200-
/O.CON.KPQR.AS.Y.0002.000000T0000Z-171214T2200Z/
Greater Vancouver Area-
Including the cities of Battle Ground, Ridgefield, Yacolt,
and Amboy
1001 AM PST Thu Dec 14 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* AIR QUALITY...Air quality may remain diminished due to an
  extended period of stagnant air conditions.

* TIMING...through Thursday afternoon.

* LOCATIONS...Most of Clark County, but excluding areas near the
  Columbia River Gorge.

* IMPACTS...Limited ventilation may result in deteriorating air
  quality continuing this week.

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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