As firefighters continue to work on the now over 1700 acre Colby fire north of Glendora, the South Coast Air Quality Management District has issued a smoke advisory for portions of Los Angeles County, including Claremont. Officials have reported that three individuals have been arrested in connection with the fast moving blaze. Although the hills north of Claremont are not threatened, with high temperatures around 80 degrees, the fire will not be contained until this weekend. COURIER photo/Steven Felschundneff