By Monday night it was only 5 percent contained.
Orange County Supervisor Todd Spitzer was among those evacuated.
Officials are asking anyone remaining to leave the area.
The South Coast Air Quality Management District has issued a smoke advisory in the area because of the fire through Tuesday morning. "They need to be able to get in there, they need to be able to provide for the safety of themselves and the other people fighting the fire, and having people in the evacuation zone just makes it more hard for us to do our jobs". At least four homes were completely gutted by the flames.
The Orange County fire has destroyed two dozen structures, including homes and outbuildings.
A sanctuary has been set up at the Downtown Anaheim Community Center at 250 East Center Street. The orders were then extended to Nohl Ranch Road and Canyon Rim.
The Canyon Fire 2 has so far burned 7,500 acres as of 6 a.m. Tuesday, Anaheim police Sgt. Daron Wyatt said at a dawn briefing. The blaze, which was initially estimated to be 25 acres, charred approximately 500 acres by around 12:30 p.m., according to the Anaheim Fire and Rescue Department.
Several elementary schools had to be evacuated and several regional parks have been closed due to the blaze, according to the Times.
The 91 Freeway, which reopened Monday afternoon, was expected to remain open for the morning commute.
Most commercial and residential homeowner insurance policies provide coverage for fire-related damages, including smoke, ash, soot, and other toxic wastes. Residents should take note of the emergency hotlines. A rep for Disneyland did not immediately return a request for comment, but it appears that the park, which is about 15 miles from the fire, remains open as usual.
Officials are anticipating a possible shift in winds that could expand the fire and push it toward neighborhoods in Anaheim Hills, Orange and Tustin.