Severe storms may bring large hail, strong winds, heavy rain, and a tornado risk to southern Ontario today

Storms in southern Ontario today may bring torrential rain, damaging winds, large hail, and possible tornadoes, with the most significant risk occurring late afternoon into the evening.

Severe weather conditions are shaping up across southern Ontario Wednesday, driven by an unstable, humid atmosphere, and a sharp cold front from Michigan acting as the primary trigger. At least two rounds of storms are expected.

All severe hazards are possible this afternoon and evening, including torrential rain, damaging winds, and very large hail (larger than golf ball size). There is also a potential for one or two tornadoes.

Weather map