The Latest on wildfires burning in the West (all times local):

7:35 a.m.

Firefighters hope to begin building containment lines around two wildfires in the San Gabriel Mountains northeast of Los Angeles.

U.S. Forest Service spokesman Nathan Judy says the fires a few miles apart above foothill suburbs have together burned nearly 8½ square miles as of Tuesday morning but no homes have been lost.

The heat wave that has seared Southern California since last weekend will not be as extreme as it was on Monday, but firefighters will be facing near-triple-digit temperatures and single-digit humidity.

West of Santa Barbara, firefighters have increased containment of a nearly 12½-square-mile blaze to 70 percent a week after it started.

Weather is expected to remain favorable for several days and mandatory evacuation orders will start to be reduced Wednesday.

East of San Diego, a wildfire burning near the desert town of Potrero is holding at just under 12 square miles although it remains only 5 percent contained.