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Severe Storms Flood Southern Quebec, Leaving 100,000 Powerless

7/15/2025

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Summary

Story summary

Severe thunderstorms unleashed chaos in southern Quebec on July 13, 2025, dumping up to 100 mm of rain and triggering flash floods that left nearly 100,000 customers without power. Montreal faced its wettest July day ever, with Saint-Leonard submerged. As cleanup efforts ramp up, the city braces for an impending heat warning.

History

Historical Context

The Great Flood of 1996 in Quebec devastated over 1,000 homes, causing losses of 100 million CAD. In July 2025, southern Quebec faced severe thunderstorms, with 100 mm of rain leading to flash floods and power outages affecting nearly 100,000 customers. These recurring extreme weather events highlight the urgent need for enhanced infrastructure and disaster preparedness in urban areas.

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Story summary

Severe thunderstorms unleashed chaos in southern Quebec on July 13, 2025, dumping up to 100 mm of rain and triggering flash floods that left nearly 100,000 customers without power. Montreal faced its wettest July day ever, with Saint-Leonard submerged. As cleanup efforts ramp up, the city braces for an impending heat warning.

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