Figure 1 shows the surface observations at 7:00 am CDT, which shows a stationary front across southern Manitoba. This stationary front became the focus for intense thunderstorms in the afternoon hours of July 8th, which ultimately led to four tornadoes on this day.
![](https://highwaysandhailstones.com/wp-content/uploads/2020/04/1.png)
Figure 2 depicts the upper-level pattern and the trough of low pressure across the Prairie Provinces, which was bringing southerly flow across Manitoba.
![](https://highwaysandhailstones.com/wp-content/uploads/2020/04/Untitled-9.png)
According to Environment and Climate Change Canada (2018), an F3 tornado touched down at 4:05 pm CDT near St. Claude, MB. The tornado travelled for 12.1 km, but its width was not documented by ECCC. The tornado caused no fatalities or property damage, but caused 5 injuries.
Sources
NOAA Central Library. (2020). U.S. Daily Weather Maps. Friday July 8, 1984 [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/