A new week brings new concerns about brush fires across the region as temperatures inch back up again. One brush fire on the West Hill of Auburn kept firefighters busy all day Sunday. The fire broke out Saturday night, but firefighters spent much of the afternoon Sunday keeping an eye on hot spots to make sure the fire didn't flare back up. The fire burned about 15-20 acres, firefighters told KOMO News. There was so much dry grass and brush to fuel the fire that flames spread quickly up the hillside. Towering power lines were surrounded by smoke as Greg Forsell looked on Saturday night. He hoped the fire would steer clear of his new home about a quarter-of-a-mile away.