Figure 1 shows the surface observations at 10:00 pm CDT, which shows a low pressure system on the Saskatchewan/Manitoba border with a warm front extending east across Manitoba and a cold front extending south across western North Dakota. A departing low pressure is also observed across Minnesota.
According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 9:20 pm CDT near Miami, MB. The track and width of the tornado was not documented by ECCC. The tornado caused no fatalities, injuries or property damage.
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 03Z Mon Jun 26 1989. 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/