Very strong severe downburst with significant 60 to 70mph straight line winds bringing down tree limbs and whole trees across the St. Louis metro region. Large trees and limbs being blown onto homes and roofs being ripped off of homes and businesses were reported all across areas nearing Lambert Airport. There's even a moment where I capture a tree snapping and crashing into some powerlines behind a house causing the wires to arc across the street from my house.