Smoke Impacts May be Possible on Highway 67 and In
Incident: Walla Valley Fire Prescribed Fire
Released: 6/21/2008
Smoke impacts may be possible on Highway 67 and in the North Rim developed area. Since smoke settles when the air temperature cools and lifts during daylight hours when the air temperature warms, smoke impacts may also occur along the Colorado River and in the inner canyon at night and during the early morning hours. The park has worked closely with the Arizona Department of Environmental Quality to ensure that smoke from the burn will not exceed acceptable levels.
During the burn, smoke columns will be visible for several weeks, but will be most visible during the first ten days of the project as the ignition points burn towards each other. After the ignition points have burned into each other, the smoke will become less noticeable.
