A Special Weather Statement has been issued for Niagara.
Environment Canada saying very localized heavy showers are possible this afternoon.
Forecasters saying that thunderstorms are developing over the area this afternoon, and although most areas will receive little precipitation, some areas may see in excess of 30 millimetres.
The statement has been issued for the entire Niagara region, along with Dunnville, Brant, Haldimand, London and Chatham-Kent.