becoming the most dense around sunrise when surface temperatures are lowest. Winter nights create favorable conditions for different forms of fog, such as cold-air pool fog, ephemeral mountain valley ...

becoming the most dense around sunrise when surface temperatures are lowest. Winter nights create favorable conditions for different forms of fog, such as cold-air pool fog, ephemeral mountain ...

becoming the most dense around sunrise when surface temperatures are lowest. Winter nights create favorable conditions for different forms of fog, such as cold-air pool fog, ephemeral mountain ...

Mountain fog is sometimes mistaken for smoke ... observed in the autumn and spring months and is the densest around sunrise when surface temperatures are often at their lowest.

A drone in London, Kentucky, soared above a thick blanket of fog to capture a beautiful sunrise on Wednesday morning ... which Nicholson had previously documented in Pine Mountain. Credit: Johnnie ...