The Soto Fire was reported around 7:48 p.m. near the area of Soto Avenue and Sedona Drive, according to CalFire. The blaze has charred 30 acres and is now 80% contained.
Evacuation orders were issued for some areas but were downgraded to warnings Wednesday morning. Those warnings cover north of Frazer Drive and Rockridge Road, south of Jurupa Road and Laurel Ridge Drive, east of Camino Real, west of Lakeside Drive and 45th Street, north of Lakeside Drive, south of Jurupa Road, east of Laurel Ridge Drive and west of Javelina Court.
People living in the area said the fire spread quickly on the mountain side.
It's unknown what sparked the blaze, but a large portion of Southern California is under a red flag warning as Santa Ana winds return to the region. There have been no reports of any structures burning or any injuries.
A care and reception center was established at Patriot High School, located at 4355 Camino Real in Jurupa Valley.