This tornado touched down at 7:20 pm, was on the ground for 13.2 kilometres and had a width of 800 metres. Trees were uprooted, snapped and, in some cases, debarked, as entire swaths of forest were levelled. Trees fell on a caused considerable damage to homes, cottages and vehicles, which also suffered minor damage to roofs, had chimneys knocked over and antennas twisted and toppled.
This was one of seventeen 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.
According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 7:50 pm near West Guilford, ON. The tornado travelled for 13.3 km with a maximum width of 800 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: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php
Environment and Climate Change Canada Data. (2018). Canadian National Tornado Database: Verified Events (1980-2009) – Public. Retrieved from: http://donnees.ec.gc.ca/data/weather/products/canadian-national-tornado-database-verified-events-1980-2009-public/