6 August 2010, Mormoiron, France

1605

A mistral can produce this type of altocumulus standing lenticular cloud. When stable, fast-moving air meets a mountain, like Mont Ventoux, the air is forced up and over it. On the lee side, the air is forced down and up again in a series of oscillating waves that form into lens-shaped clouds. They appear stationary, but they are continually dissipating and reforming.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s