Figure 1 depicts the surface observations at 12:00 pm MDT. There were two tornadoes on this day, the other being:

According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 4:00 pm MDT near Wainwright, AB. The tornado travelled for 22.9 km before ending near Edgerton, AB.
Sources
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Wed Jun 25 1986. 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/