Windsor, ON F0 Tornado of July 8, 1986

Windsor - Essex - Chatham-Kent

Occurring at 7:25 pm, witnesses observed this tornado as it touched down in a park and damaged trees. It then tracked for 1.5 km, causing minor shingle and siding damage to a house. Figure 1 depicts a wave forming with a cold front across Michigan and a warm front across southern Ontario. A line of storms can be observed at 8:00 pm EDT from roughly Toronto into Ohio.

Figure 1. Surface analysis at 00Z on July 8, 1986 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 7:25 pm EDT in Windsor, ON. The tornado travelled for 1.6 km and the maximum width was not documented by ECCC. The tornado caused no injuries or fatalities, but caused $25 thousand dollars in property damage.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Mon Jun 16 1986. Retrieved from:

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