Photo by KeithJ via the LAist Featured Photos pool on Flickr Hot temperatures, low humidity, and brisk winds helped to whip up the flames yesterday in the foothills of Sierra Madre, as a fire that broke out mid-afternoon Saturday has now blazed through approximately 400 acres. The fire was first reported shortly before 2 p.m. close to Santa Anita Canyon Road, and caused some initial evacuations from the nearby recreation areas, including a Boy......