Cal Fire officials will burn 100 acres of grass and oak understory starting at 1 p.m. Tuesday as part of a three-day training in the Sierra Nevada foothills.
Smoke will be visible, and the California Department of Forestry and Fire Protection urges drivers in the area to be cautious.
The fire training will occur at Kistler Ranch, north of Highway 108-120 just west of Jamestown, and at Crook Ranch in Groveland. The flames also will burn Medusahead grass, a noxious weed identified by the Tuolumne County Agriculture Department.
The training is designed to instruct firefighting supervisors from around the state in the proper techniques to plan and conduct operations during wildfire suppression.
The students will be taught how to apply fire to fight fire, learning the proper techniques to ignite and control flames that are lit outside the perimeter of an approaching wildfire. This technique is used to starve the wildfire of available vegetation.
Training is anticipated to be done by 5 p.m. Thursday. Five fire engines, two fire crews and a bulldozer will be used in the training.