Active Weather Alerts
Severe Thunderstorm Watch
Issued: 6:47 PM Jul. 17, 2025 – Environment and Climate Change Canada
Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing damaging wind gusts and torrential rain. Hazards: Wind gusts up to 100 km/h Torrential rainfall with amounts exceeding 50 mm A tornado is also possible When: This afternoon. Additional information: Thunderstorms along a cold front are expected to move through the region this afternoon before exiting the province by evening. ### Utility outages are possible. Significant damage to property, buildings and trees is possible. Heavy rain can cause flash flooding and significant reductions to visibility. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.
Heat Warning
Issued: 9:03 AM Jul. 17, 2025 – Environment and Climate Change Canada
Heat event continues. What: Daytime highs near 30 degrees Celsius and humidex values near 40. When: Continuing today. Additional information: A cooler airmass is expected to arrive late this afternoon or early evening bringing an end to this heat event. ### For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
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