Uh oh. #SoCal fires: Silverado Fire near Irvine went from ~10 acres to 4,000 acres, critically burned two firefighters; Blue Ridge Fire near Yorba Linda is 700 acres and moving toward homes. These are both in #Orange County, but Blue Ridge is about to cross into #Los_Angeles and #San_Bernardino Counties near Chino. Evacuations: 20,000 homes ( about 60,000 people ) near the Silv…