It might be this fire:
http://inciweb.nwcg.gov/incident/maps/4423/
2 years ago there was a fire in the Kern area & the smoke would blow over the crest & into LP in the afternoons. The wind pattern would shift at nite & the mornings would be clear then the wind would change direction & blow it back in the afternoon.
I'm going up this week so I hope it clears out.