Oak Brae, MB F2 Tornado of August 28, 1991

Ste. Rose - McCreary - Alonsa - Gladstone

Figure 1 shows the surface observations at 7:00 am CDT, which shows an outflow boundary moving across southern Manitoba and a stationary front extending east across Manitoba. This stationary front was the focus for thunderstorms in the early morning hours of August 28th, which ultimately led to this tornado.

Figure 1. Surface analysis at 12Z on August 28, 1991 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F2 tornado touched down near Oak Brae, MB. The track, width, time and date 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 12Z Wed Aug 28 1991. Retrieved from: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php

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/