Mildmay, ON EF1 Tornado of May 13, 2014

Grey - Bruce

Striking near the village of Mildmay and travelling to the east, this tornado significantly damaged one home and two barns. Its path was 2 km long and 150m wide, along which one well-built house had its roof partially torn off, as well as windows blown out and siding torn away. Two barns were also damaged or destroyed, and a number of trees snapped and uprooted.

Figure 1. Surface analysis at 00Z on May 14, 2014 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

Figure 1 depicts the surface observations at 8:00 pm EDT, which shows a cold front moving across Lake Huron and southwestern Ontario. This front was the focus for intense thunderstorms in the evening hours of May 13th, which ultimately led to this tornado.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 00Z Wed May 14 2014. Retrieved from: