Storm damage teams with the Northern Tornadoes Project confirmed on Wednesday afternoon that preliminary data indicate a tornado was produced by a system.
On Tuesday evening, tornado sirens were heard across the Western University campus, and emergency Alerts also lit up phones as far as Waterloo Region shortly after 6 p.m.
The organization said in a statement that a tornado did occur just southeast of London in a small rural area named Derwent.
“Video, radar and a preliminary investigation done last evening provided the necessary evidence. An NTP survey team will still visit the area to determine intensity and track,” it reads.
The alerts from the severe storm sent warning messages to Waterloo Region residents that read, “Tornado in this mobile coverage area. Take immediate cover in a basement or interior room if weather threat approaches. Shelter from flying debris if outside.”
The Region of Waterloo also posted a safety notice on social media Tuesday afternoon.
“With the potential for severe thunderstorms today, there is always a chance for a tornado. Make sure you’re prepared in advance so you can stay safe.”
The damage in Waterloo Region was minimal, especially compared to what took place in London.
Photos are circulating on social media of large trees uprooted, and even trampolines stuck in hydro wires.
London Hydro brought out its entire forestry crew to tackle the sheer number of downed trees across The Forest City.
Hundreds of customers were without power.
The City of London said clean-up efforts are underway, with a focus on clearing blocked roads and debris impacting homes, structures, and vehicles.
Investigators will be on scene Wednesday to determine whether or not a tornado touched down.
There are no reports of injuries.