East Slopes Northern Cascades

 Air Stagnation Advisory  Statement as of 2:31 PM PST on February 11, 2016

... Air stagnation advisory now in effect until 10 am PST

* air quality... light winds and temperature inversions will
heighten the potential for elevated pollution levels in central
Washington Washington through Tuesday. Weak weather disturbances
will pass through Thursday night... with a stronger cold front
passage late Friday into Saturday. However valleys near the
Cascades may not receive the full benefit of that front. Some
improvement is possible but it is expected to be short-lived
before more stagnant conditions work back in. Thus the advisory
is extended through Tuesday morning.

* Impacts... burn bans may be in effect for your area. Please
consult your state or tribal authorities before burning.

* Locations... a few communities included in the air stagnation
advisory are Omak... Winthrop... Mazama... and Leavenworth.

Precautionary/preparedness actions...

An air stagnation advisory indicates that due to limited movement
of an air mass across the advisory area... pollution has the
potential to 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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