The Glass Fire burning near St. Helena in Napa County, California spurred mandatory evacuations and has burned at least 50 acres. (Napa County Sheriff's Office)Parts of the community of Angwin were also under evacuation orders. Officials were urging people in Angwin to evacuate because their evacuation route could become blocked. Authorities have not said if any structures have burned, but at least six wineries are located within the evacuation zone, according to KTVU. The sheriff's office warned those evacuating from the area to not stop or park in turnouts to view the fire. Napa County officials are opening an evacuation center at Crosswalk Community Church on First Street in Napa as Cal Fire teams from San Mateo and Santa Cruz Counties were called in for assistance. California is facing a new stretch of hot, dry weather with potentially strong winds that could cause power lines to arc and spark new blazes in parched vegetation that’s ready to burn. Red Flag warnings for extreme fire weather conditions are in effect in northern and central areas of the state at 9 p.m. Saturday and last into Monday, according to the National Weather Service (NWS). The renewed concern of weather igniting new blazes came with some 17,000 firefighters still on the lines of 25 major wildfires statewide, according to Cal Fire. The Associated Press contributed to this report.