Spring snowstorm creates wealth of work for arborists The spring snowstorm brought down trees and branches across the Denver metro area creating a mass clean-up that's keeping property owners and arborists busy. and last updated 2021-04-16 22:31:33-04 DENVER â The spring snowstorm brought down trees and limbs across the Denver metro area knocking out power, damaging vehicles and creating a weight of work for arborists. Dane Douglas, an arborist with Dandy Tree Care, said his phone has been ringing nonstop. He was cutting up a tree limb, estimated to be about 30 feet, that fell towards Downing Street just south of Washington Park.