Elisa Weaver of the Arcadia Fire Department says the fire was first reported Saturday afternoon in a wooded area off Santa Anita Canyon Road a few miles northeast of Pasadena. It was windy at the time and unseasonably hot, with temperatures approaching 100 degrees.
Weaver says the fire broke out in a popular hiking area, and its cause remains under investigation. It has burned at least 350 acres.
The blaze also left 50 guests from a wedding party stranded at a ranger's station.
Homes in the following areas are being evacuated:
Oak Crest Drive north of Carter Avenue
North of Carter Avenue East to Mira Monte Avenue to Mountain Trail
Sierra Madre Lower and Upper Canyons
All areas North of Grand View Avenue from Mountain Trail east to Santa Anita Avenue
Evacuation shelters have been set up at:
222 W. Sierra Madre Blvd.
170 W. Sierra Madre Blvd.