Thorhild, AB F1 Tornado of May 10, 1989

Figure 1 depicts the surface observations at 12:00 pm MDT.

**Figure 1.** Surface analysis at 18Z on May 10 , 1989 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 6:15 pm MDT near Thorhild, AB. The path and width of the tornado was not documented by ECCC.

Sources

NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Wed May 10 1989. 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/

Sources

Through the Eyes of Our Chasers