Video shot Friday by a passenger in the terminal shows workers jumping out of the way as flying equipment repeatedly smashes into airline vehicles parked by the gate.
Equipment could also be seen blowing across the taxiway at one point.
The wind, which gusted up to 75 miles per hour, was so bad that airport officials issued a ground stop for several hours on Friday evening, writing on Twitter that high winds and flying debris made it unsafe for ground crews to work.
Due to high winds and flying debris, it's not safe for ground crews to work outdoors right now. Please have patience while we wait for conditions to improve. If you're waiting for a gate, we'll get you moving as soon as it's safe to do so. #safetyfirst #windstorm— Toronto Pearson (@TorontoPearson) May 4, 2018
The ground stop was lifted later in the evening, but the airport warned passengers to expect delays as airlines worked to rebook passengers impacted by canceled flights from the day before.