Penhold, AB F0 Tornado of July 9, 1986

Red Deer - Ponoka - Innisfall - Stettler

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:

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.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 18Z Wed Jul 9 1986. Retrieved from:

Environment and Climate Change Canada Data. (2018). Canadian National Tornado Database: Verified Events (1980-2009) – Public. Retrieved from: