Dense Smoke Advisory issued September 05 at 3:02AM PDT until September 05 at 12:00PM PDT by NWS

...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL NOON PDT TODAY... * Temperatures: Dense smoke will keep temperatures from reaching advisory levels. * Locations in the dense smoke advisory: Klamath River valley and Scott Valley, including Etna, Happy Camp and Somes Bar. * Visibilities: less than a quarter mile at times in smoke.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2iYW59q