Air Stagnation Advisory

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
205 AM MST Thu Jan 16 2025

IDZ011>016-028>030-033-ORZ061>064-171200-
/O.CON.KBOI.AS.Y.0002.000000T0000Z-250117T1800Z/
West Central Mountains-Lower Treasure Valley ID-Boise Mountains-
Upper Treasure Valley-Southwest Highlands-Western Magic Valley-
Camas Prairie-Owyhee Mountains-Southern Twin Falls County-Upper
Weiser River-Harney County-Baker County-Malheur County-Oregon
Lower Treasure Valley-
Including the cities of Malheur City, Riddle, Silver City, Nampa,
Grasmere, Ontario, Buchanan, Mountain Home, Dunnean, Caldwell,
Murphy Hot Springs, McCall, Pine, Lowman, Baker, Nyssa, Council,
Garden Valley, Diamond, Twin Falls, Venator, Boise, Burns, New
Princeton, Midvale, Cambridge, Idaho City, Cascade, Rogerson,
Hollister, Fairfield, Crane, and Jerome
205 AM MST Thu Jan 16 2025 /105 AM PST Thu Jan 16 2025/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST /10 AM
PST/ FRIDAY...

* WHAT...An extended period of stagnant air, with light winds and
  little vertical mixing. This is due to an inversion near the
  surface that will continue to trap pollutants.

* WHERE...Portions of south central, southwest, and west central
  Idaho and northeast and southeast Oregon.

* WHEN...Until 11 AM MST /10 AM PST/ Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with respiratory illness should follow their physicians
advice for dealing with high levels of air pollution during periods
of stagnant air.

&&

$$

JDS

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
238 PM PST Thu Jan 16 2025

ORZ021-023>026-029>031-172000-
/O.CON.KMFR.AS.Y.0002.000000T0000Z-250117T2000Z/
South Central Oregon Coast-Central Douglas County-Eastern Curry
County and Josephine County-Eastern Douglas County Foothills-
Jackson County-Klamath Basin-Northern and Eastern Klamath County
and Western Lake County-Central and Eastern Lake County-
Including the cities of Valley Falls, Altamont, Chemult, Bly,
Umpqua, Gilchrist, Sutherlin, New Pine Creek, Cave Junction,
Green, Shady Cove, Beatty, Drain, Sprague River, Medford,
Winchester, Crescent, Fort Rock, Adel, Applegate, Glendale,
Wilderville, Coquille, Gold Hill, Midland, Elkton, Paisley,
Olene, Jacksonville, Merlin, Canyonville, Rogue River, Lakeview,
Powers, Myrtle Point, Roseburg, Myrtle Creek, Klamath Falls,
Grants Pass, and Ashland
238 PM PST Thu Jan 16 2025

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY...

* WHAT...Moderate to poor air quality will continue through the next
  few days. This is due to an inversion and stagnant air conditions
  near the surface that will continue to trap pollutants.

* WHERE...The valleys of Klamath, Lake, Jackson, Josephine and
  Douglas Counties. This includes the Klamath Basin and the Rogue,
  Illinois, Umpqua, Goose, Summer Lake and Applegate valleys.

* WHEN...Until noon PST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with respiratory illness should follow their physicians
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.

&&

$$

Smith