Witnesses reported seeing this small tornado with a debris cloud touch down at around 7:30pm, causing damage to trees and fences. This was one of two tornadoes to touch down in the province on May 17; the other was an F1 near Carleton Place in eastern Ontario.
Figure 1 depicts a cold front slicing through southern Ontario at 8:00 pm EDT. This front and possibly pre-frontal trough triggered storms, which ultimately led to this F0 tornado and the F1 tornado in eastern Ontario.
According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 7:30 pm EDT near Hagersville, ON. The track and the width of the tornado was not documented by ECCC. The tornado caused no injuries, fatalities or property damage.
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 00Z Mon May 18 1992. Retrieved from: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php
Environment and Climate Change Canada Data. (2018). Canadian National Tornado Database: Verified Events (1980-2009) – Public. Retrieved from: http://donnees.ec.gc.ca/data/weather/products/canadian-national-tornado-database-verified-events-1980-2009-public/