Non-Precipitation Warnings / Watches / Advisories
Issued by NWS Portland, OR

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WWUS76 KPQR 131924
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1124 AM PST Wed Dec 13 2017

...STAGNANT AIR CONDITIONS EXPECTED THROUGH THURSDAY...

ORZ008-142200-
/O.CAN.KPQR.ZF.Y.0001.000000T0000Z-171213T2000Z/
/O.CON.KPQR.AS.Y.0002.000000T0000Z-171214T2200Z/
South Willamette Valley-
Including the cities of Eugene, Springfield, Corvallis, Albany,
and Lebanon
1124 AM PST Wed Dec 13 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST
THURSDAY...
...FREEZING FOG ADVISORY IS CANCELLED...

The National Weather Service in Portland has cancelled the
Freezing Fog Advisory.

* FREEZING FOG ADVISORY...Fog is clearing and temperatures are
  rising, so the Freezing Fog Advisory has been cancelled.

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

* TIMING...through Thursday afternoon.

* LOCATIONS...the southern Willamette Valley.

* 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.

&&

$$

ORZ007-142200-
/O.CON.KPQR.AS.Y.0002.000000T0000Z-171214T2200Z/
Central Willamette Valley-
Including the cities of Salem, McMinnville, Woodburn, Stayton,
and Dallas
1124 AM PST Wed Dec 13 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST
THURSDAY...

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

* TIMING...through Thursday afternoon.

* LOCATIONS...Central Willamette Valley.

* 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.

&&

$$

ORZ005-WAZ022-142200-
/O.CON.KPQR.AS.Y.0002.000000T0000Z-171214T2200Z/
Lower Columbia-I-5 Corridor in Cowlitz County-
Including the cities of St. Helens, Clatskanie, Longview, Kelso,
and Castle Rock
1124 AM PST Wed Dec 13 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST
THURSDAY...

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

* TIMING...through Thursday afternoon.

* LOCATIONS...The Lower Columbia and I-5 Corridor in Cowlitz
  County

* 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.

&&

$$

WAZ039-142200-
/O.CON.KPQR.AS.Y.0002.000000T0000Z-171214T2200Z/
Greater Vancouver Area-
Including the cities of Battle Ground, Ridgefield, Yacolt,
and Amboy
1124 AM PST Wed Dec 13 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST
THURSDAY...

* AIR QUALITY...Air quality may deteriorate 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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