Kelvin-Helmholtz clouds look like waves in the sky.

Ahead of our last storm, Carol Bogovich noticed these unusual clouds in the sky - Kelvin-Helmholtz clouds or billows.

Kelvin-Helmholtz Clouds by Carol Bogovich

These clouds are indicators of atmospheric instability. Aviators have learned to avoid them because of the turbulence. They look like waves or sails in the sky.

Today the Pacific Ocean has big swells coming in, and abalone divers are warned not to go diving. As tomorrow is the last day of abalone diving, some might feel they should take the risk. They shouldn't!

Thanks to Carol for allowing me to share her photo with you here.

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