Clandeboye, ON F1 Tornado of June 8, 2008

London - Middlesex

Touching down about 25 km north of London, the tornado demolished a shed and flipped over and damaged a trailer. The twister was captured in several photographs, a slender, dusty landspout that was on the ground for about a kilometre at 5:00 pm.

This was one of two tornadoes that touched down in Southwestern Ontario on June 8; the other was an F0 at Warwick.

Figure 1 depicts the surface observations at 5:00 pm EDT, which shows an ongoing squall line in Michigan, which is moving east towards Ontario. This line of thunderstorms was responsible for an F0 and F1 tornado in southwestern Ontario in the early evening hours of June 8th.

Figure 1. Surface analysis at 21Z on June 8, 2008 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 5:00 pm near Clandeboye, ON. The path 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 Sun Jun 8 2008. Retrieved from:

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