The tornado touched down at 4:40 pm and was on the ground for about 5 minutes. It travelled for 2 kilometres but did not produce any damage. A witness captured photos of the tornado, a large cone that was fully condensed to the ground. This was likely a landspout and not associated with a mesocyclone.
Figure 1 depicts the surface observations at 2:00 pm EDT, which shows little in terms of synoptic forcing. A low pressure is seen over Toronto, which is bringing warm advection into central Ontario. Some convergence is observed near North Bay, which likely played a role in initiating storms.
According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 4:40 pm near Willow Beach, 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 18Z Tue May 16 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/