For the second day in a row, Environment Canada issued a severe thunderstorm watch for southwestern Ontario Tuesday.
The national weather service said conditions were favourable for the development of severe thunderstorms, strong wind gusts, large hail, and heavy rain.
The yellow-level watch was issued for area including Lambton, Huron, and Perth Counties, as well as parts of Grey and Wellington Counties.
Thunderstorms were expected to develop late afternoon and into the evening.
Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.