A surge of intense heat and atmospheric moisture is set to trigger severe thunderstorms and torrential downpours across southern Ontario starting Tuesday afternoon.
Low pressure systems approaching the Great Lakes are driving this turbulent weather pattern, according to a report from Yahoo News.
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Atmospheric humidity will push perceived temperatures into the 30s, with humidex values expected to approach the 40s.
Timing and Affected Areas
Weather experts forecast Wednesday and Thursday to be the warmest days of the week, creating unstable conditions that fuel slow-moving storm systems.
Initial storm activity will impact southwestern Ontario, the Lake Huron shores, and cottage country on Tuesday afternoon.
The Greater Toronto Area is expected to experience these severe weather systems later during the evening and overnight hours.
The risk shifts toward eastern Ontario on Wednesday, threatening regions including Petawawa, Ottawa, and Cornwall with isolated thunderstorms.
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These localized systems bring a potential for intense rainfall and hail measuring near 2 centimeters.
Concurrently, a separate storm system tracking from Michigan is projected to hit Windsor-Essex by late Wednesday evening.
This system carries the risk of producing heavy rainfall, large hail, and damaging wind gusts throughout the overnight period.
Meteorologists note that atmospheric instability will expand further on Thursday, raising the likelihood of widespread storm development.
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While weekend conditions are expected to dry out mostly, a sharp temperature drop will follow on Sunday, bringing highs down to the upper teens and lower 20s along the 401 corridor.
