Thunderstorms June 22, 2015. Photo submitted by Kyle James

UPDATE: Severe Thunderstorm Watch Lifted

Environment Canada has ended severe thunderstorm watches for southwestern Ontario.

The watches were issued Saturday morning, as forecasters said there was the potential for severe thunderstorms to develop. The watches were later upgraded to warnings in London-Middlesex, Chatham-Kent, and Windsor-Essex.

London-Middlesex also saw a tornado warning issued during the mid-afternoon.