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One product issued by NWS for: Gales Creek OR
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Air Stagnation Advisory

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
121 PM PST Fri Dec 6 2019

ORZ005>007-010-012-WAZ022-039-040-072200-
/O.EXT.KPQR.AS.Y.0003.000000T0000Z-191210T2000Z/
Lower Columbia-Greater Portland Metro Area-
Central Willamette Valley-Northern Oregon Cascade Foothills-
Cascade Foothills in Lane County-I-5 Corridor in Cowlitz County-
Greater Vancouver Area-South Washington Cascade Foothills-
Including the cities of St. Helens, Clatskanie, Hillsboro,
Portland, Wilsonville, Oregon City, Gresham, Troutdale, Salem,
McMinnville, Woodburn, Stayton, Dallas, Sandy, Estacada,
Sweet Home, Vida, Jasper, Lowell, Cottage Grove, Longview, Kelso,
Castle Rock, Vancouver, Battle Ground, Ridgefield, Washougal,
Yacolt, Amboy, Toutle, Lake Merwin, Yale Lake, and Cougar
121 PM PST Fri Dec 6 2019

...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL NOON PST TUESDAY
BELOW 1500 FEET...


* WHAT...Stagnant air may lead to poor air quality at times.

* WHERE...Interior southwest Washington and interior northwest
  Oregon for areas below 1500 feet.

* WHEN...Until noon PST Tuesday. Strong inversions will develop
  Sunday night and continue through at least Tuesday morning
  across the area.

* IMPACTS...Poor air quality may cause issues for people with
  respiratory problems.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with respiratory illness should follow their physician`s
advice for dealing with high levels of air pollution during
periods of stagnant air.

State air quality agencies highly recommend that no outdoor
burning occur and that residential wood burning devices be
limited as much as possible. According to state air quality
agencies, prolonged periods of stagnant air can hold pollutants
close to the ground where people live and breathe. Check with
your local burn agency for any current restrictions in your area.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/portland




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