This tornado occurred at 10:00 am, coming ashore at Parry Island, on the east shore of Georgian Bay. Trees were knocked down and siding torn from a home. To the east of there, there were unconfirmed reports that a house and two cottages were ‘completely destroyed’ at Otter Lake.
Figure 1 depicts a tough (labelled TROF), which initiated thunderstorms in the early morning hours of August 2nd. These thunderstorms spawned an F1 tornado that likely tracked southeast. The motion and length of the tornado was estimated based on geopotential heights and surface analysis.

According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 10:00 am EDT near Parry Island, ON. The track and width of the tornado was not documented by ECCC. The tornado caused no injuries, fatalities or property damage.
Sources
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Sat Jul 30 1988. 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/