Severe thunderstorm risk may brew in Ontario on Saturday, stay alert

A stormy Saturday on tap for parts of Ontario. Chance for severe thunderstorms to bubble up

Thunderstorms are in the forecast for Ontario on Saturday, with some potentially intensifying to severe levels in certain areas. Temperatures will rise into the mid-teens under milder southerly winds, creating conditions for thunderstorm activity.

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Weather Highlights:

  • Saturday will bring thunderstorms to Ontario, with a risk of some turning severe

  • Storms are likely in northeastern Ontario near Chapleau, Sudbury, and Timmins, with a cold front triggering a broken line of storms in southern Ontario by afternoon, moving east in the evening

  • Heavy downpours and strong winds are possible, especially in inland areas with higher thunderstorm energy

Ontario thunderstorm forecast Saturday

A more organized weather system is expected to move across northeastern Ontario Saturday, sparking thunderstorm development near Chapleau, Sudbury, and Timmins.

The system's cold front will track into southern Ontario by the afternoon. Severe storms are possible for parts of the region as broken lines and clusters of thunderstorms develop around lunchtime and continue into the afternoon and early evening.

The highest potential for severe thunderstorms will be inland, where conditions for higher thunderstorm energy are most favourable.

Localized impacts may include strong winds, small hail, and localized downpours, particularly in areas experiencing more continuous storm clusters.

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Ontario precipitation forecast Saturday 5pm

Rain and thunderstorms will track east into eastren Ontario by the early evening hours, likely diminishing in strength as they arrive.

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Be prepared for potential weather changes and keep an eye on local forecasts throughout the weekend.

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