Major snowfall could be coming to parts of southern Ontario, including Waterloo Region, Guelph and Stratford

Heavy Snowfall Expected Across Southern Ontario

Environment Canada has issued a snow squall watch for several areas in southern Ontario, warning of potentially severe weather conditions. Parts of Waterloo Region, Guelph, and Stratford could experience between 30 and 50 centimeters of snow later this week.

Forecast and Expected Conditions

The federal weather agency reported that cold air moving across the Great Lakes is likely to generate intense snow squalls, particularly affecting open areas with little natural shielding. These conditions may cause rapid drops in visibility, hazardous roadways, and poor driving conditions throughout the storm period.

Areas Under Watch

The snow squall watch currently includes:

Environment Canada cautioned that snowfall amounts and timing may vary based on local wind patterns and lake-effect dynamics.

Safety and Travel Advice

Officials are urging residents to prepare for travel disruptions and potential closures. Motorists are advised to adjust plans, ensure vehicles are winter-ready, and stay alert for changes to the forecast.

“Visibility may be suddenly reduced at times in heavy snow. Travellers should be prepared for quickly changing conditions,” Environment Canada stated in its advisory.

Residents are encouraged to monitor official updates for regional advisories and warnings as the system develops.

Author Summary: Environment Canada warns that up to 50 cm of snow may hit southern Ontario, prompting travel cautions for residents from Waterloo to Stratford later this week.

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CTV News CTV News — 2025-11-26

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