Thamesville, ON F0 Tornado of June 12, 1994

Windsor - Essex - Chatham-Kent

At around 8:00 pm, this tornado touched down at an area blueberry farm, damaging trees and collapsing a barn. This was one of two tornadoes that touched down in the province on June 12; the other was an F0 near Avonmore in Eastern Ontario.

Figure 1 depicts the surface observations at 5:00 pm EDT, which depicts a trough of low pressure extending into eastern Ontario. This trough was the focus for storms and ultimately this F0 tornado.

Figure 1. Surface analysis at 21Z on June 12, 1994 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 8:00 pm EDT near Thamesville, 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 21Z Sat Jun 12 1994. Retrieved from:

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