What does come out of the wall of clouds on the leading edge of squall lines are vicious straight line winds known as “downbursts.” These winds can be as deadly and damaging as tornadoes.

(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.

But like the one that swept ... The word is Spanish for "straight ahead" or "direct," Pryor said. The structure of a derecho-producing storm looks distinctive in radar and satellite imagery ...