* 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…Until 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.