NEW : Diminishing Santa Ana winds aid firefighters . NEW : Over 1,500 wildfires already this year -- well above average . The fire has scorched more than 31 square miles so far . Comment: A 19-year-old man and a 17-year-old juvenile , both of Escondido , are arrested in fire probe .
NEW : Diminishing Santa Ana winds aid firefighters . NEW : Over 1,500 wildfires already this year -- well above average . Comment: A 19-year-old man and a 17-year-old juvenile , both of Escondido , are arrested in fire probe .