La Riviere, MB F0 Tornado of July 2, 2005

Killarney - Pilot Mound - Manitou

Figure 1 depicts the surface observations at 10:00 pm CDT, which shows a low pressure system in North Dakota with a warm front extending northeast across southeastern Manitoba. This warm front became the focus for intense thunderstorms across southern Manitoba in the evening hours of July 2nd, which ultimately led to this tornado.

Figure 1. Surface analysis at 03Z on July 2, 2005 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 8:58 pm CDT near La Riviere, MB. The path and width of the tornado was not documented by ECCC. The tornado caused no fatalities, injuries or documented property damage.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 03Z Sun Jul 3 2005. Retrieved from:

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