Boston, ON F0 Tornado of July 13, 1995

Simcoe - Delhi - Norfolk

This probable tornado struck at 7:30pm, with witnesses observing a funnel cloud with a swirling plume of dust and debris. Trees were snapped and uprooted, flag poles snapped and shingles torn off of roofs. This was one of two tornadoes that touched down on July 13; the other was an Fo near Brantford.

Figure 1 shows the surface observations at 8:00 pm EDT, which depicts a surface high pressure over Lake Erie, with an outflow boundary near Buffalo. The combination of land-breeze and lift from the outflow boundary provided the necessary combination for thunderstorms on this otherwise nice day.

Figure 1. Surface analysis at 00Z on July 14, 1995 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 7:30 pm EDT near Boston, ON. The track and width 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 00Z Fri Jul 14 1995. Retrieved from:

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