Bancroft, ON F2 Tornado of August 2, 2006

Bancroft - Bon Echo Park

The tornado struck several homes and farms along its 8 kilometre path that was 250 metres in width. Several houses were damaged extensively; one was destroyed after its roof and a few exterior walls were ripped off. In addition, barns were totally demolished, vehicles were moved around and trees were snapped and uprooted. Debris was scattered throughout the area with pieces of destroyed houses and barns left impaled in the ground and dangling from trees. The tornado touched down at 8:50 pm.

This was one of 17 tornadoes that touched down in Southern and Eastern Ontario during the evening hours of August 2, 2006. Until it was surpassed in 2009, the tornado outbreak set a record as the largest tornado outbreak ever recorded in Ontario.

Figure 1 depicts the surface observations at 5:00 pm EDT, which shows a low pressure over Georgian Bay with a cold front stretching into Michigan. This cold front became the focus for intense thunderstorms in the evening hours of August 2nd, which ultimately led to a tornado outbreak across southern Ontario.

Figure 1. Surface analysis at 21Z on August 2, 2006 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F2 tornado touched down at 8:45 pm near Bancroft, ON. The tornado travelled for 8 km with a maximum width of 250 metres. The tornado caused no fatalities, injuries or property damage.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Wed Aug 2 2006. Retrieved from:

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