Tuesday, December 12, 2017

Valley Fog, Hoar Frost, and Inversion

Fog has settled thick in the Salt Lake Valley. Cache valley has had days of fog.

December 7th, 2017

December 12th, 2017

Freezing fog often causes hoar frost which is the thick white frost that deposits on trees. If the fog droplets are supercooled, meaning the liquid water is below freezing, it will freeze on contact to surfaces. My brother took this picture from Logan:
Photo Credit: Nathan Blaylock

Oh, and the air is getting pretty bad out there. Check out the PM 2.5 trends across northern Utah. Yuck.