Northern Ontario: Thunderstorm Outlook for Thursday, June 10, 2021

Forecast Discussion

A decaying cluster of thunderstorms that brought severe weather to parts of Manitoba and Northwestern Ontario late Wednesday is expected to continue to track eastward through the region overnight into Thursday morning. The environment is no longer favourable for these storms to remain severe so these nocturnal storms should be non-severe with small hail, strong wind gusts and heavy rainfall. They’ll reach Northeastern Ontario to the east of Lake Superior during the early morning as they slowly fizzle out by the afternoon hours. Widespread rainfall amounts between 25-50mm are possible within this line of storms so isolated flooding could be an issue. As mentioned, the storm threat will come to an end by late morning on Thursday.