Sault Ste. Marie, ON F0 Tornado of August 1, 1993

Sault Ste. Marie - Superior East

No damage was caused by this tornado, which occurred at 7:15 pm. Witnesses captured photographs of several whisky, scuddy funnels that were reported to have touched down.

Figure 1 depicts the surface observations at 2:00 pm EDT, which shows a stationary front just west of Sault Ste. Marie, with a low pressure in northern Ontario. This stationary front was the focus for storms throughout the day.

Figure 1. Surface analysis at 18Z on August 1, 1993 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 7:15 pm EDT near Sault Ste. Marie, 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 18Z Sat Aug 1 1993. Retrieved from:

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