Southern Ontario faces risk of severe storms and funnel clouds on Thursday

Southwestern Ontario and areas along the Lake Huron shoreline are particularly at risk for funnel clouds due to high lapse rates and cooler air at higher altitudes. There is also a slight chance of a weak land spout tornado emerging in the region during the afternoon or evening hours. In addition, wind gusts of 30-50 km/h are expected from late morning through early evening, with locally stronger gusts possible (up to 80 km/h) during thunderstorms.

After periods of heavy rainfall during the morning, thunderstorms are forecast to redevelop Thursday afternoon and evening across southern Ontario. Some of these storms may reach severe limits, with conditions supporting the potential for large hail ranging from 2 to 3 cm in diameter and localized heavy downpours.

The Great Lakes is set to deliver widespread rain and scattered thunderstorms throughout Thursday. Some thunderstorms may become severe, with the risk of, large hail, funnel clouds, and even a tornado or two. Rainfall levels this June have already approached or surpassed monthly normal in several regions, including Toronto, Hamilton, and Wiarton, making this another active month for southern Ontario.Next week will definitely feel like summer, with temperatures ranging from seasonal to above seasonal for several days. Humidity levels will also rise, with the humidex potentially exceeding 40.

Environment Canada