After lightning sparked fires across the Sierra Nevada foothills, evacuations were ordered Tuesday for several communities along Highway 4. Parts of Vallecito, Douglas Flat and Murphys were included in the evacuation order for the 2-7 Fire, which by midafternoon Tuesday had burned 500 acres, according to the California Department of Forestry and Fire Protection. Another evacuation order covered a less populated area near Don Pedro Reservoir, where the 6-5 Fire had burned 3,000 acres.