Missanabie, ON F1 Tornado of September 12, 2011

This F1 tornado touched down to the northeast of Wawa, near Missanabie, producing tree damage as it passed through area forest.

**Figure 1.** Surface analysis at 18Z on September 12, 2011 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

Figure 1 depicts the surface observations at 2:00 pm EDT, which shows a stationary front across Lake Superior. This front likely initiated storms in parts of Ontario as a warm front moved north, which ultimately led to this tornado.

Sources

NWS Weather Prediction Center Surface Analysis Archive. (2017).Surface analysis 18Z Mon Sep 12 2011. Retrieved from: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php

Sources

Through the Eyes of Our Chasers