Fergus, ON EF0 Tornado of September 1, 2013

Guelph - Erin - Southern Wellington County

No damage was caused by this broad and weakly rotating tornado that touched down outside of Fergus. It occurred at around 6:00 pm, and was filmed by CANWARN spotter Dave Patrick, who was able to confirm its touchdown in an area field.

Figure 1. Surface analysis at 21Z on September 1, 2013 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

Figure 1 depicts the surface observations at 5:00 pm EDT, which shows a warm front across southern Ontario. This front became the focus for thunderstorm activity throughout the late-afternoon and evening hours of September 1st, which ultimately led to this tornado.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Sun Sep 1 2013. Retrieved from: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php