Pickering, ON F0 Tornado of July 16, 1998

York - Durham

This tornado touched down at around 4:00 pm and was witnessed by area residents as it snapped and uprooted trees.

Figure 1 depicts the surface observations at 2:00 pm EDT, which shows a low pressure system in Quebec with a cold front extending into southern Ontario. This cold front became the focus for thunderstorms in the early afternoon of July 16th, which ultimately led to this F0 tornado.

Figure 1. Surface analysis at 18Z on July 16, 1998 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 6:00 am EDT in Guelph, ON. The tornado travelled for 1 km. The 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 Thu Jul 16 1998. 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/