'Severe storm threat' in southern Ontario including GTA
· Toronto Sun
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The Weather Network is warning of a severe storm threat in southern Ontario including the Greater Toronto Area on Thursday that could see anywhere from 30-50 mm of rain.
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The forecaster says Thursday’s storm brings heavy rain, strong winds, and hail to the area.
“A strong system is set to affect Ontario through Thursday, delivering widespread risks of severe thunderstorms,” says theweathernetwork.com
“The primary hazards associated with these storms are heavy rain, large hail, and potentially damaging winds. Residents are urged to remain vigilant as conditions evolve.”
The storm is being driven by a muggy and humid air mass
The Weather Network says the storm is “driven by a muggy and humid air mass ahead of a system approaching the Great Lakes. Humidex values are expected to climb into the mid-30s, with abundant moisture available to intensify storm activity.”
The high is expected to be 28C but feel more like 36C with the humidex.
The Weather Network says by early afternoon on Thursday, southern Ontario—situated behind the warm front—will grow unstable and as thunderstorm energy increases, severe storms are forecast to move inland, impacting areas like the GTA as early as 1–2 p.m. ET.
“Slowdowns are possible along major highways, including the 400, 404, and 401, due to heavy rain,” says theweathernetwork.com.
“Localized rainfall amounts of 30-50 mm are possible under thunderstorms, along with strong gusts and hail up to toonie size.”
The forecaster says by late afternoon and evening, thunderstorms are expected in southwestern Ontario along the system’s cold front with large hail, strong winds, and heavy rain the main threats as storms progress.
By Friday, the humidex will remain in the 30s C across parts of Ontario with the chance of pop-up, isolated thunderstorms though conditions are set to become more seasonal heading into the weekend.
The storm follows a week long heatwave in Toronto from June 30-July 4.