Figure 1 shows the surface observations at 7:00 pm CDT, which shows a a trough of low pressure moving south across Manitoba. This trough became the focus for intense thunderstorms across central Manitoba, which ultimately led to this tornado.
According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 7:30 pm CDT near Duck Bay, MB. The track of the tornado was not documented by ECCC, but its maximum width was 400 metres. The tornado caused no fatalities, injuries or property damage.
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 00Z Sat Aug 3 1996. 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/