Smoke inversion. Due to the smoke being held in the canyon we couldn't see what fire activity was headed our way. The decision was made to wait out the inversion and see if this fire or adjacent fires blows up from forecasted low RH's and 20-30 mph winds. Being in the drainage would be dangerous if the fire blew up. Due to all the unburned fuel in between spot fires. The winds never came and the fire stayed fairly subdued. We got an easy day today.