Mather, MB F1 Tornado of August 24, 1986

Killarney - Pilot Mound - Manitou

Figure 1 shows the surface observations at 4:00 pm CDT, which shows a low pressure system on the Manitoba/Saskatchewan border with a warm front extending south into North Dakota. The warm front became the focus for intense thunderstorms across southern Manitoba in the afternoon hours of August 24th, which ultimately led to two tornadoes on this day.

Figure 1. Surface analysis at 21Z on August 24, 1986 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 5:00 pm CDT near Mather, 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 21Z Sun Aug 24 1986. Retrieved from:

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