A Cloud 'Tide' Fills the Grand Canyon in Gorgeous Time-Lapse Video

[Judi Lynn]

By Mindy Weisberger, Senior Writer | May 16, 2017 07:45am ET

- click for photo -

Dense clouds fill the Grand Canyon basin, a phenomenon known as a "total cloud inversion."
Credit: Harun Mehmedinovic


Time-lapse images recently captured an incredible sight — a "tide" of clouds rolling into Arizona's Grand Canyon, in a rare phenomenon known as a total cloud inversion.

Thick, white clouds roil and churn in footage that was shot and edited into a video by filmmaker Harun Mehmedinovic. Titled "Kaibab Elegy," the film was published on Vimeo on May 14 and is part of the Skyglow video series and book project, documenting the impact of light pollution on the visibility of the night sky, and contrasting bright urban landscapes with wild spaces untouched by the shine of electric illumination. [Image Gallery: See Photos of Wild Cloud Formations]

Air temperature typically cools as it moves higher into Earth's atmosphere. But during an inversion event, a layer of warm air traps cool air and moisture closer to the ground, preventing it from dissipating as it normally would, according to the National Weather Service (NWS).

The phenomenon, also called a surface inversion, is most likely to form during winter months when the air near the ground cools quickly at night, while the air just above the surface stays warm. If winds are calm, the warm air can't mix with the cooler air below it, and the cooler air — which is already denser than the warm air — persists close to the ground; that cool air is particularly likely to get stuck if there are also high-pressure conditions in the area or topographical features such as mountains that can trap the cool air, the NWS explained.

More:
http://www.livescience.com/59119-cloud-inversion-grand-canyon-time-lapse.html?utm_source=notification

[argyl]

1. That is magnificent. Thank you so much for posting.