St. Claude, MB F0 Tornado of June 22, 1992

Portage La Prairie - Headingly - Brunkild

Figure 1 shows the surface observations at 4:00 pm CDT, which shows a low pressure over Lake Manitoba and a warm front extending south across southeastern Manitoba. Northerly flow is observed across Lake Manitoba, which likely triggered lake-breezes south of the lake. Lake-breezes, aided by terrain interactions with the Manitoba Escarpment and a developing cold front (not depicted on Figure 1), likely triggered thunderstorms south of Lake Manitoba, which ultimately led to this tornado.

Several tornadoes occurred on this day:

Figure 1. Surface analysis at 21Z on June 22, 1992 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 3:50 pm CDT near St. Claude, MB. The track of the tornado was not documented by ECCC, but its maximum width was 100 metres. The tornado caused no fatalities, injuries or property damage.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Mon Jun 22 1992. Retrieved from:

Environment and Climate Change Canada Data. (2018). Canadian National Tornado Database: Verified Events (1980-2009) – Public. Retrieved from: