A massive tree in Harrow was downed by a severe thunderstorm and strong winds in the region on Wednesday, July 26, 2023. Toppled trees pulled up swathes of grass and pavement, including in Harrow where a massive tree fell dangerously close to a home. A home in Harrow had severe damage from a tree that blew over during a massive thunderstorm on Wednesday, July 26, 2023. A home in Harrow had severe damage from a tree that blew over during a massive thunderstorm on Wednesday, July 26, 2023. Hydro One reported dozens of outages in its southwestern Ontario service area, including about 1,600 people without power in Essex County.