Pilots recognize undulatus clouds as a sign of wind shear. Consequently, these clouds may create slight turbulence for a flight. https://earthsky.org/earth/undulatus-clouds-wavy-rows/
Ripple Clouds
PHOTOS BY LISA COMER
PHOTOS BY LISA COMER
Pilots recognize undulatus clouds as a sign of wind shear. Consequently, these clouds may create slight turbulence for a flight. https://earthsky.org/earth/undulatus-clouds-wavy-rows/
IN MY VIEWFINDER 
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