Figure 1 depicts the surface observations at 4:00 pm CDT, which shows a cold front moving across Southern Manitoba. This front triggered thunderstorms across Southeastern Manitoba in the afternoon hours of May 31st, which ultimately led to this tornado.

According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 4:52 pm CDT near Tourond, MB. The path and width of the tornado was not documented by ECCC. No property damage was documented for this tornado.
Sources
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Sat May 31 2008. 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/