Udney, ON EF1 Tornado of September 5, 2014

Barrie - Orilla - Midland

This tornado struck the Udney area, touching down at around 6:45 pm. It was spawned from a pre-frontal storm that developed well ahead of a line of storms along an advancing cold front.

The tornado tracked through rural properties, including one farm that was extensively damaged. There, trees were snapped and a barn and a shed were both demolished. The tornado also struck and caused severe damage at a local park; trees were snapped and uprooted, fencing at the ball diamond twisted, and the clubhouse torn apart with its debris scattered.

This was one of two tornadoes to touch down on September 5, 2014. The other:

  • Christian Island (EF0)
Figure 1. Surface analysis at 00Z on September 6, 2014 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

Figure 1 depicts the surface observations at 8:00 pm EDT, which shows a squall line (or line of thunderstorms) moving across southern Ontario. This line of thunderstorms was responsible for two tornadoes in the late afternoon and evening hours of September 5th.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 00Z Sat Sep 6 2014. Retrieved from: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php