Peterborough, Lakefield and Southern Peterborough County are expected to get heavy rain in slow-moving thunderstorms on Friday according to Environment Canada.
Torrential downpours are expected with rainfall amounts of 30 to 60 mm but could even be higher. The rainfall is expected to continue into this evening.
Heavy downpours can cause flash floods and water pooling on roads according to Environment Canada. Localized flooding in low-lying areas is possible.