Figure 1 depicts the surface observations at 7:00 am EST, which shows a trough of low pressure extending across the U.S. / Alberta border with a low pressure centre in Western Montana. The trough of low pressure triggered thunderstorms across Southern Alberta, which ultimately led to this tornado.
According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 5:00 pm MDT near Coutts, AB. The path and width of the tornado was not documented by ECCC. No property damage was documented for this tornado.
NOAA Central Library. (2019). U.S. Daily Weather Maps. Friday May 7, 1982 [PDF]. Retrieved from https://library.noaa.gov/Collections/Digital-Collections/US-Daily-Weather-Maps
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/