A red flag fire weather warning will be in place across San Diego County, with the exception of the coast, from 10 a.m. Thursday afternoon to 10 p.m. Friday due to a combination of moderate Santa Ana winds, low humidity and warm temperatures. The National Weather Service says the winds will arrive out of the northeast and will blow 20 to 30 mph, with gusts to 30 to 40 mph, mostly across the region’s valleys and mountains. A few gusts could reach the 50 to 65 mph range, especially in the Alpine area.