Eastern Ontario is bracing for a volatile weather pattern as a late-winter cold front brings the possibility of thunderstorms, strong winds, and even blowing snow. Environment Canada has issued a severe thunderstorm watch for a large area including Ottawa-Gatineau, Brockville, Cornwall, and La Pêche.
Severe Weather Across Eastern Ontario
The thunderstorm watch, issued just four days before the start of spring, indicates conditions are favorable for storms capable of producing strong winds, heavy rain, hail, and lightning. A sharp temperature swing is anticipated in some areas, such as Ottawa, where temperatures could rise from around 0°C at 5 a.m. Monday to 14°C by 5 p.m., before plummeting back to approximately -5°C by 5 a.m. Tuesday. The colder temperatures are expected to persist through Tuesday and Wednesday.
Beyond the thunderstorm threat, a wind warning is in effect for southern Prince Edward County, forecasting gusts up to 90 km/h Monday afternoon and evening. The Kingston-Belleville area could experience gusts around 80 km/h starting Monday afternoon and continuing through Tuesday morning. Further west, communities along Highway 7 may see 5 to 10 centimetres of blowing snow overnight Monday into Tuesday.
Orange-level storm warnings are also in place for areas further west, specifically Barrie and Sudbury.
The current situation underscores the importance of staying informed about changing weather conditions and being prepared for potential impacts to travel and infrastructure.
Frequently Asked Questions
What areas are under a severe thunderstorm watch?
The severe thunderstorm watch covers Ottawa-Gatineau and stretches north, east and south to include Brockville, Cornwall and La Pêche.
What is the difference between a watch and a warning?
A watch means severe weather is possible. A warning means forecasters have evidence that weather is happening or about to happen.
What temperature changes are expected in Ottawa?
Ottawa could experience a temperature swing from around 0°C at 5 a.m. Monday to 14°C at 5 p.m., then back to approximately -5°C by 5 a.m. Tuesday.
As this complex weather system unfolds, how will residents balance enjoying the brief respite of warmer temperatures with preparing for the return of colder conditions?
