Smoke from out-of-state fires will continue to choke Colorado through at least Tuesday afternoon, according to the National Weather Service. The smoke, moving into Colorado from wildfires burning in Wyoming and Idaho, prompted multiple air quality warnings across the Front Range and Eastern Plains on Tuesday. NWS forecasters issued an Air Quality Alert for Douglas, Jefferson, Denver, Arapahoe, Adams, Broomfield, Boulder, Larimer and Weld counties from 4 p.m.