Southern Ontario: Thunderstorm Outlook for Saturday, June 26, 2021

Forecast Discussion

A constant stream of precipitation with embedded thunderstorms will pump into the region starting early Saturday afternoon. There is also the potential for strong thunderstorms to develop during the late afternoon and early evening on Saturday. The main threat will be intense rainfall rates plus strong winds and moderate-size hail. Storms are expected to develop over Lake Huron and track through regions northeast of Lake Huron and east of Georgian Bay. There are indications that a slight tornado risk could exist with these storms. The risk will come to an end by midnight although non-severe storms with a lot of rain will still continue overnight into Sunday morning.