The thick layer of smoke covers all of Northern California as hundreds of thousands of acres burn. The smoke is thickening as crews battle the Carr Fire in heavy timber on steep slopes. The Carr Fire has torn through 173,522 acres and is still 47% contained. 1,077 homes have been lost, along with 22 commercial structures and 500 other buildings. 191 homes and 26 commercial structures have been damaged. Those structure numbers remain unchanged as the fire is burning into mostly unoccupied areas to the north, allowing more repopulations, including the devastated areas of Keswick and Old Shasta. The communities of Igo and Lewiston were also reopened Tuesday night. The number of threatened structures is now estimated at 935. There are nearly 4800 personnel working the fire.