UPDATE (8:05 a.m.) – Fire officials say the fire is holding at 147 acres with 75 percent containment.
There is no longer a threat to structures.
UPDATE (6:00 a.m.) – Firefighters say the Sierra Fire has reached 147 acres. Firefighters will remain on scene throughout the day mopping up and reinforcing containment lines.
#SierraFire(Update): Fires currently at 147 acres. Crews will remain on scene today reinforcing containment lines, mopping up hot spots through the interior, and monitoring the wind conditions. ^eas
— SB County Fire (@SBCOUNTYFIRE) November 14, 2018
UPDATE (11:43 p.m.) – Firefighters said Santa Ana winds are driving the fire south along Riverside Avenue. Firefighters are actively protecting structures but no evacuations are in place.
#SierraFire(Update): Fire continues to grow to the south under influence of #SantaAnaWinds. Structure protection in place along Riverside Ave. NO EVACUATIONS are in place at this time.
— SB County Fire (@SBCOUNTYFIRE) November 14, 2018
A brush fire started in San Bernardino County in Fontana Tuesday night.
The so-called Sierra Fire started as a 2-3 acre fire at around 10 p.m. and grew to 20 acres within 15 minutes.
#SierraFire(Update): Update to 20 acres. Unified Command between #SBCoFD, @CALFIREBDU, and @RialtoFireDept.
— SB County Fire (@SBCOUNTYFIRE) November 14, 2018
According to NBC Los Angeles, the Sierra Fire is threatening homes on the border of Fontana and Rialto, although no evacuations have been ordered.
This is a developing story and will be updated as new information becomes available.