Figure 1 depicts the surface observations at 4:00 pm CDT, which shows an occluding low pressure in Saskatchewan with a warm front extending east across central Manitoba and a cold front extending south across southeastern Saskatchewan. The warm front became the focus for thunderstorm activity in the evening hours of August 4th, which ultimately led to this tornado.
According to Environment and Climate Change Canada (2018), an F0 tornado touched down at 6:15 pm CDT 43 km southwest of The Pas, MB. The path and width of the tornado was not documented by ECCC. No property damage was documented for this tornado.
Sources
NWS Weather Prediction Center Surface Analysis Archive. (2017). Surface analysis 21Z Sat Aug 4 2007. Retrieved from: https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive.php
Environment and Climate Change Canada Data. (2018). Canadian National Tornado Database: Verified Events (1980-2009) – Public. Retrieved from: http://donnees.ec.gc.ca/data/weather/products/canadian-national-tornado-database-verified-events-1980-2009-public/
