DENVER -- Smoke and thick haze moved into the metro Denver area from Colorado's wildfires Wednesday.
By the evening hours, the sky looked overcast, but it wasn't from rain clouds. The smoke poses a risk for people with asthma and other respiratory problems. Experts advised those people to just stay inside and keep doors and windows closed.
The National Weather Service says the smoke will be in the area through at least Thursday morning.
See health recommendations for wildfire smoke from National Jewish Health here.