Pipestone Lake, ON F1 Tornado of July 29, 1988

Kenora - Nestor Falls

Figure 1 depicts the surface analysis on the morning of July 29th, showing a stationary front in northwest Ontario and a cold front slicing through the Dakotas. Figure 1 depicts a thunderstorm ongoing along the front, which is responsible for the tornado that impacted Pipestone Lake.

Figure 1. Surface analysis at 12Z on July 29, 1988 showing mean sea-level pressure (MSLP) contours, surface observations, fronts, pressure centres and ongoing thunderstorm (circled in red) (WPC, 2017, modified by Francis Lavigne-Theriault, 2019).

According to Environment and Climate Change Canada (2018), a tornado touched down 30 km east of Nestor Falls, ON. The track, width and time of the tornado was not documented by ECCC. The tornado caused no injuries, fatalities or property damage.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 12Z Fri Jul 29 1988. 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/