Monday's storm threat includes the risk for supercells over parts of northern Ontario and Quebec. Meteorologist Rhythm Reet has your full forecast details.

Supercell thunderstorms are likely to develop Monday across parts of northeastern Ontario and western Quebec, posing threats of torrential rain, strong winds, hail, and a slight tornado risk.

Environment Canada issued a swath of warnings for the two provinces with upwards of 100 millimetres of rain expected in some areas.