Here’s what Mather Point (Grand Canyon National Park) looked like yesterday morning with the rare inversion. Rangers wait for years to see it. Word spread like wildfire and most ran to the rim to photograph it. What a fantastic treat for all!
NPS Photo by Erin Whittaker
This is so neat. The Grand Canyon Facebook page hasmorephotos of this and io9, by way of the National Weather Service, has a short plain-English explanation of what a temperature inversion is.