North Gower, ON F1 Tornado of July 15, 1997

City of Ottawa

Lawn furniture was scattered and trees knocked down by this tornado which touched down at around 3:30 pm. Houses were damaged by falling trees and a trailer was crushed and destroyed. The tornado travelled through North Gower and Osgoode.

Figure 1 depicts the surface observations at 2:00 pm, which depicts a weak stationary front crossing southern Ontario. This front became the focus for thunderstorm development as it moved eastward across Ontario.

Figure 1. Surface analysis at 18Z on July 15, 1997 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 3:30 pm EDT near North Gower, ON. The tornado travelled for 20 km. The width of the tornado was not documented by ECCC. The tornado caused no fatalities, injuries or property damage.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Tue Jul 15 1997. Retrieved from:

Environment and Climate Change Canada Data. (2018). Canadian National Tornado Database: Verified Events (1980-2009) – Public. Retrieved from: