As first reported by PetaPixel, "Photographer Jerry Ferguson was shooting from a news helicopter this week when he spotted a microburst over Phoenix, Arizona... A microburst is like a reversed tornado. While a tornado has winds that move inward and upward, microbursts have strong winds that move downward and outward. During wet microbursts, winds can be accompanied by massive downpours."
Incredible capture indeed. Talk about being at the right spot and the right time.