There was no single reason for the haze noted over the Four Corners on Tuesday, a meteorologist at the National Weather Service in Grand Junction said.
The high, fairly thin cirrus clouds give the sky a milky appearance, Ellen Heffernan said. With diffused sunlight, things dont look so sharp.
Wildfires in the West could add to the effect, Heffernan said.
But there are no fires super-close, she said.
The Durango Interagency Fire Dispatch Center said there were no wildfires detected in Southwest Colorado.
A reconnaissance flight in the morning found no fires, the agency said in a statement. The agency planned an afternoon flight to make sure.
The sky over Grand Junction appeared the same milky color, Heffernan said.
The Durango-La Plata County Airport reported visibility of at least 10 miles, Heffernan said.
Haze is in the eye of the beholder, Heffernan said.
In the West, visibility is usually so good that any deterioration is notable, Hefernan said.
Were spoiled, Heffernan said.