Penhold, AB F0 Tornado of July 9, 1986

Figure 1 depicts the surface observations at 12:00 pm MDT, which shows a stationary front across Alberta. This front became the focus for thunderstorm activity, which ultimately resulted in three tornadoes. The other tornadoes that occurred on this day were:

Big Hill Springs Provincial Park, AB F0 Tornado
Penhold #2, AB F0 Tornado

**Figure 1.** Surface analysis at 21Z on July 9, 1986 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 12:15 pm MDT near Penhold, 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 Jul 9 1986. 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