Thunderstorms, up to 40 mm of rain forecast in parts of Ontario

Thunderstorms and heavy rain are possible for parts of Ontario on Sunday.

The storms and up to 40 millimetres of rain are forecast for a large area of the province, stretching from the Kingston and Ottawa area in the east, through cottage country and past Timmins in the north, according to a weather outlook from Environment and Climate Change Canada.

The storms could start this afternoon and continue overnight.

Scattered thunderstorms are possible.

Fog patches are expected to develop overnight in some areas.