Stroud, ON EF1 Tornado of June 17, 2014


Touching down at Stroud, southeast of Angus, this EF1 tornado caused considerable damage at a rural property there. Its path was 750m long and 300m wide, along which a large drive shed was removed from its foundation and thrown several dozen metres, its debris damaging a farmhouse. Several mature trees were also snapped or uprooted. The tornado was rated as a high-end EF1, with winds estimated at between 155 and 175 kilometres per hour.

This was one of two tornadoes to touch down on June 17, 2014. The other:

Figure 1. Surface analysis at 21Z on June 17, 2014 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 strong cold front entering southern Ontario and a warm front north of Barrie. The cold front became the focus for intense supercells in the afternoon and evening hours, which led to an EF1 tornado near Stroud and a strong long-track EF2 near Angus.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Tue Jun 17 2014. Retrieved from: