Northern Ontario: Thunderstorm Outlook for Wednesday, July 28, 2021

Forecast Discussion

There is the potential for thunderstorms throughout much of Northern Ontario during the day on Wednesday. It will begin with a few non-severe storms for parts of Northwestern Ontario during the morning with more storms expected to develop later in the day. Some of these afternoon and evening storms could reach severe levels mainly in Northwestern Ontario with large hail, strong wind gusts and heavy rainfall. The threat will come to an end late in the evening as the severe storms move stateside. Non-severe storms may continue through the overnight into Thursday morning for Northeastern Ontario.