Freezing Fog Advisory issued January 19 at 6:05PM PST until January 20 at 9:00AM PST by NWS Medford OR

* WHAT…For the Freezing Fog Advisory, visibility one quarter mile
or less in freezing fog. For the Air Stagnation Advisory, poor air
quality will continue. This is due to an inversion and stagnant
air conditions near the surface that will continue to trap
pollutants.

* WHERE…For the freezing fog advisory, the valleys of Josephine
and Jackson counties, including Medford, Ashland, Shady Cove,
Provolt, Cave Junction, Grants Pass, and Agness. For the air
stagnation advisory, all inland valleys in eastern Curry,
Josephine and Jackson counties.

* WHEN…For the Freezing Fog Advisory, until 9 AM PST Monday. For
the Air Stagnation Advisory, until 10 AM PST Tuesday.

* IMPACTS…Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous. Icy roads will require slower speeds and additional
stopping distance. Sidewalks may become icy and slippery.