Figure 1 shows the surface observations at 4:00 pm CDT, which shows a low pressure system across southern Manitoba with a cold front extending south into North Dakota.

According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 5:05 pm CDT near St Pierre-Jolys, MB. The track of the tornado was not documented by ECCC, but its maximum width was 10 metres. The tornado caused no fatalities, injuries or property damage.
Sources
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Wed Jun 3 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/