The Latest on a Southern California wildfire (all times local):

8:10 a.m.

Authorities lifted some evacuation orders after crews working through the night protected homes and held a brush fire in the populated hills northwest of Los Angeles to just over 500 acres — but serious challenges remain.

Los Angeles County Deputy Fire Chief John Tripp says firefighters hope to get the eastern and southern flanks of the blaze surrounded before temperatures soar again Sunday. Tripp says hot, dry conditions a day earlier led to spot fires that had crews scrambling.

The fire is 30 percent contained and residents of Calabasas are being allowed back into their homes, which may be without electricity. Evacuation orders remain in the hilly enclave of Topanga.

Sheriff's officials said some 3,000 homes were threatened and about 5,000 residents were evacuated at the fire's height Saturday. Three homes sustained minor damage.