Kitchener-Waterloo Environment Canada has put out a yellow alert for severe thunderstorms affecting the Waterloo region and Guelph. The agency warns that heavy rainfall and winds reaching up to 90 km/h are expected this Wednesday afternoon, possibly accompanied by hail the size of toonies.
Wind speeds could hit 90 km/h, according to Environment Canada
· Posted: Aug 12, 2026 12:18 PM EDT | Last Updated: August 12 Estimated 1 minute
Heavy rain clouds float above Kitchener city hall on Aug. 12, 2026. Environment Canada has issued a yellow alert for severe thunderstorms for Waterloo region, Guelph and surrounding area. (John Dalusong/CBC)
Environment Canada has issued a yellow alert for severe thunderstorms in the Waterloo region, Guelph, and nearby areas due to anticipated heavy rain and strong winds this Wednesday afternoon.
The warning states that wind gusts may reach as high as 90 km/h and there is also a chance of hail the size of toonies.
These conditions are expected to persist into the early evening.
According to Environment Canada, local power outages could happen along with possible damage to roofs, fences, branches, and temporary shelters.
Residents are advised to stay indoors when thunder is heard since lightning can be dangerous.
Emergency Management Ontario suggests seeking cover immediately if severe weather approaches.
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