But every now and then, a storm comes along that challenges our understanding of these fluffy phenomena, crafting cloud formations so bizarre that they leave even seasoned meteorologists ...

(WLUK) -- Friday's late afternoon skies featured a unique, eye-catching cloud formation. FOX 11 viewers from across Northeast Wisconsin submitted pictures of the peculiar straight-line clouds.

Kelvin Helmholtz clouds are named after the two scientists who studied the physics behind them A rare cloud formation resembling waves in the sky has been seen across North Yorkshire. The billowy ...