Figure 1 shows the surface observations at 7:00 am CDT, which shows a low pressure over northern Manitoba with a stationary front extending south across southern Manitoba. This front became the focus for thunderstorms in the early morning hours of June 3rd, which ultimately led to this tornado.

According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 9:30 am CDT in Winnipeg, MB. The track and width of the tornado was not documented by ECCC. The tornado caused no fatalities, injuries or property damage.
Sources
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 12Z Tue Jun 3 1997. 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/