Oregon Lower Treasure Valley
Dense Fog Advisory until SUN 11:00 AM MST
Issued December, 14 2025 at 10:49 AM - US/Mountain expires December, 14 2025 at 11:00 AM - US/Mountain
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST /4 AM
PST/ TUESDAY...
...DENSE FOG ADVISORY WILL EXPIRE AT 11 AM MST /10 AM PST/ THIS
MORNING...
* 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...Lower Treasure Valley Zones.
* WHEN...Until 5 AM MST /4 AM PST/ Tuesday.
* 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.
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