Environment Canada is warning conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts in South Niagara.
A thunderstorm watch has been issued for Niagara Falls, Welland and the southern tier.
Scattered showers and thunderstorms have developed over the area. There is the potential that one of these thunderstorms may produce a brief wind gust of 90 km/h and small hail.
Remember, when thunder roars, go indoors!