The highest spaces of the mountains, typically covered with clouds and fog, is known as wao akua, or the region of the gods.

As the skies clear, the heat that was trapped below the clouds is ... are driving through picturesque mountains, and the next you could find yourself in valley fog with little to no visibility.

The National Weather Service issued a dense fog advisory at 7:26 p.m. on Tuesday in effect until Wednesday at 8 a.m. for Foothills of the Northern Blue Mountains of Oregon. The weather service ...

The 9NEWS Weather Impact Team issued a Weather Impact Alert for Friday morning for fog across much of the Front Range and heavy mountain snow. Denver will begin Friday cloudy and foggy.