Ninette, MB F1 Tornado of May 23, 2007

Killarney - Pilot Mound - Manitou

Figure 1 depicts the surface observations at 4:00 pm CDT, which shows an occluded low pressure in extreme southwestern Manitoba with an occluded front extending east across southern Manitoba. A trough of low pressure is also observed extending west from the low pressure. The trough became the focus for intense thunderstorms across southwestern Manitoba in the evening hours of May 23rd, which ultimately led to this tornado.

Figure 1. Surface analysis at 21Z on May 23, 2007 showing mean sea-level pressure (MSLP) contours, surface observations, fronts and pressure centres (WPC, 2017)

According to Environment and Climate Change Canada (2018), an F1 tornado touched down at 5:00 pm CDT near Ninette, MB. The path and width of the tornado was not documented by ECCC. No property damage was documented for this tornado.


NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Wed May 23 2007. Retrieved from:

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