FIREFIGHTING crews and equipment from the Orange County Fire Authority and other agencies are still battling the Silverado and Blue Ridge fires (OCFA photo).

This is a developing story. Check back for updates throughout the day.

UPDATE: A total of 80,500 homes in Orange County are under mandatory evacuation orders because of the Silverado and Blue Ridge fires. Firefighters have gone to air operations to battle the Blue Ridge blaze, and will continue through the night, according to the OCFA. The Silverado fire is considered 5 percent contained, and the Blue Ridge fire 0 percent contained. Complete containment for both blazes is predicted for Nov. 10. Update as of 9 p.m.

––––––––––––––––––––––––––––––––––––––––––––––––

UPDATE: The Silverado and Blue Ridge fires in Orange County continue to burn and expand, with containment progressing slowly.

Here are new developments from the Orange County Fire Authority and the affected cities.

• All Orange Unified School District classes will be on a “virtual learning” basis on Wednesday. A status update will be provided around noon on Wednesday.
• A mandatory evacuation order in an area of Irvine has been lifted. The area is everything south of Portola Parkway and west of the 133 Toll Road. All other evacuation orders remain in place.
• There is a new mandatory evacuation order for residents in Modjeska Canyon.
• The Blue Ridge Fire has now burned 15,200 acres and is considered zero percent contained. It’s headed northwest toward Carbon Canyon. A voluntary evacuation for Rim Crest Drive from Fairmont Boulevard through Blue Gum Drive is advised.

This update is as of 3 p.m.

––––––––––––––––––––––––––––––––––––––––––––––––––––

The good news is that the Santa Ana Winds are slackening, which helps in containing the fires that have ravaged areas of north and east Orange County.

However, despite some reduction in the Santanas, the Silverado Fire has spread to over 11,000 acres. That fire, located generally east of Irvine, is considered 5 percent contained.

The Blue Ridge Fire near Brea and Yorba Linda has grown to 10,480 acres, according to the Orange County Fire Authority.

Here are some developments Tuesday morning:

• Voluntary evacuations are now in effect in Brea Hills and Olinda Ranch. The Olinda Alpha Landfill is closed until further notice. Mandatory evacuation orders remain for Hollydale and Olinda Village.
• Not included for mandatory evacuation are the areas of Bee Canyon, Box Canyon and Lost Trough Canyon; those areas are considered for voluntary evacuation.
• Below is the Orange County Sheriff’s Dept.’s evacuation map as of 11:30 a.m. Go to http://www.ocsheriff.gov for updates.

EVACUATION MAP as go 11:30 a.m. Tuesday (OC Sheriff).