Finnigan, AB F0 Tornado of August 23, 1984

Brooks - Strathmore - Vulcan

Figure 1 depicts the surface observations at 7:00 am EST, which shows a low pressure system across Central Albert with a cold front across Southwestern Alberta. The cold front became the focus for thunderstorms, which ultimately led to this tornado.

Figure 1. Surface analysis at 7:00 am on August 23, 1984 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (NOAA, 2020)

According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 8:00 pm MDT near Finnigan, AB. The path and width of the tornado was not documented by ECCC.


NOAA Central Library. (2019). U.S. Daily Weather Maps. Thursday August 23, 1984 [PDF]. Retrieved from

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