On Wednesday, Jan. 31, the U.S. Forest Service plans to begin the Thomas Mountain Prescribed Burn at about 9 a.m.

Operations may continue through the weekend. An unexpected change in weather conditions will cancel the burn.

Intermittent recreational closures may occur at Thomas Mountain yellow post sites (semi-developed campgrounds), Thomas Mountain Road (6S13) and the Ramona Trail.

Smoke may be visible in the air. Drivers in the area should slow down for personnel on the sides of local roads.

The purpose of the burn is to reduce fuels. This type of ecological restoration helps protect communities from wildfire and helps improve watershed health. Millions of Southern Californians depend on water that originates in the San Bernardino National Forest.

For more information and background on this and other prescribed fires, visit www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd569405.pdf. The public can check in on planned prescribed burns by calling 909-382-2711 or following the forest on Twitter at @SanBernardinoNF.