Quote Originally Posted by O2HeN2 View Post
Interesting clouds in North Colorado Springs yesterday late morning.

...just a grab shot from a moving car...

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Kelvin-Helmholtz Clouds
Appear when there?s a difference in densities of the air ? for example, during a temperature inversion ? when warm air flows over cooler air. You?re also more likely to see these clouds near sunrise or sunset, another time when the bottom of the clouds are cooler and the air above is warmer. The clouds take on this wave shape when the air above is moving more quickly than the air below, pushing over the tops of the clouds and creating the rolling wave appearance. As you might have guessed, Kelvin-Helmholtz clouds are a sign that aircraft in the area will be experiencing turbulence.