At approximately 2:20 PM, Saturday, San Jose FD responded to reports of a vehicle fire at the intersection of Warm Springs and Chalet Ave. Initial responding units arrived to find a vehicle fire, which extended into an RV, and was extending into a structure. A second alarm was struck a short time later, and the fire extended onto the properties of 3 adjacent residences. Complicating factors included sheds and propane tanks on fire in the back yards of the 4 residences, as well as live power lines down in multiple places. The firefight continued for approximately 2 hours, and mop up operations are underway. See SOT for more details.