STORM CHASE LIVE Watch Now  

St. Albert, ON F1 Tornado of June 25, 1999

Prescott and Russell


This tornado caused damage at two farms, where roofs were torn from barns, trees were snapped and uprooted and a trailer was thrown over 150m. Witnesses observed a funnel cloud with a cloud of debris swirling at its base.

Figure 1 depicts the surface observations at 2:00 pm, which shows a cold front slicing through central Ontario/Quebec, which ultimately led to thunderstorms in eastern Ontario, which led to this F1 tornado.

Figure 1. Surface analysis at 18Z on June 25, 1999 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 4:30 pm EDT near St. Albert, ON. The path and width of the tornado was not documented by ECCC. The tornado caused no fatalities, injuries or property damage.


Sources

NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Fri Jun 25 1999. 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/