Environment Canada has ended a number of severe thunderstorm watches in southern Ontario.
The watch was issued Saturday afternoon for London-Middlesex, Chatham-Kent, Windsor-Essex and Sarnia-Lambton, as well as Perth and Wellington counties.
The weather agency says a fast moving cold front triggered isolated severe thunderstorms capable of producing strong wind gusts, large hail and heavy rain.
The alert was ended for all regions around 7pm.