URGENT - WEATHER MESSAGE
National Weather Service Medford OR
239 PM PST Mon Jan 6 2025

ORZ023>026-071300-
/O.CON.KMFR.AS.Y.0001.250107T1800Z-250110T2000Z/
Central Douglas County-Eastern Curry County and Josephine County-
Eastern Douglas County Foothills-Jackson County-
Including the cities of Steamboat, Cave Junction, Roseburg,
Toketee Falls, Glendale, Shady Cove, Elkton, Myrtle Creek,
Sutherlin, Jacksonville, Applegate, Butte Falls, Medford,
Wilderville, Umpqua, Gold Hill, Canyonville, Merlin, Grants Pass,
Green, Winchester, Rogue River, and Drain
239 PM PST Mon Jan 6 2025

...AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO
NOON PST FRIDAY...

* WHAT...Strong valley inversions will result in weak winds, poor
  mixing and ventilation. This will result in stagnant air
  conditions that will trap pollutants near the surface.

* WHERE...Central Douglas County, Eastern Curry County and Josephine
  County, Eastern Douglas County Foothills, and Jackson County. This
  includes the cities of Roseburg, Grants Pass, Cave Junction and
  Medford.

* WHEN...From 10 AM Tuesday to noon PST Friday.

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

* ADDITIONAL DETAILS...Mixing and ventilation should be better at
  the south end of the Rogue Valley from around Talent to Ashland
  due to stronger SE winds.

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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
239 PM PST Mon Jan 6 2025

ORZ029>031-071300-
/O.CON.KMFR.AS.Y.0001.250107T1800Z-250110T2000Z/
Klamath Basin-Northern and Eastern Klamath County and Western
Lake County-Central and Eastern Lake County-
Including the cities of Adel, Fort Rock, Sprague River, New Pine
Creek, Bly, Midland, Klamath Falls, Lakeview, Valley Falls,
Crescent, Gilchrist, Altamont, Beatty, Olene, Paisley, and
Chemult
239 PM PST Mon Jan 6 2025

...AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO
NOON PST FRIDAY...

* WHAT...Strong valley inversions will result in weak winds, poor
  mixing and ventilation. This will result in stagnant air
  conditions that will trap pollutants near the surface.

* WHERE...Lake County and eastern Klamath County, and Klamath Basin.
  This includes the cities of Klamath Falls and Lakeview.

* WHEN...From 10 AM Tuesday to noon 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.

&&

$$

TD

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
1258 PM MST Mon Jan 6 2025

IDZ011>015-028-029-033-ORZ061>064-072200-
/O.NEW.KBOI.AS.Y.0001.250107T0600Z-250110T1800Z/
West Central Mountains-Lower Treasure Valley ID-Boise Mountains-
Upper Treasure Valley-Southwest Highlands-Camas Prairie-Owyhee
Mountains-Upper Weiser River-Harney County-Baker County-Malheur
County-Oregon Lower Treasure Valley-
Including the cities of Riddle, Silver City, Venator, Crane,
Ontario, Caldwell, Pine, Cascade, Malheur City, Lowman, Boise,
McCall, Nyssa, Idaho City, Murphy Hot Springs, Diamond,
Cambridge, Council, Dunnean, Fairfield, Nampa, Mountain Home,
Grasmere, Midvale, Garden Valley, Buchanan, New Princeton, Baker,
and Burns
1258 PM MST Mon Jan 6 2025 /1158 AM PST Mon Jan 6 2025/

...AIR STAGNATION ADVISORY IN EFFECT FROM 11 PM MST /10 PM PST/ THIS
EVENING TO 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 southwest and west central Idaho and northeast
  and southeast Oregon.

* WHEN...From 11 PM MST /10 PM PST/ this evening to 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