Storm odds peak Friday with a risk for large hail, strong winds
Stay aware of rapidly changing conditions as you go about your day in southern Ontario on Friday
A system moving into the Great Lakes region will spark a risk for thunderstorms across much of southern Ontario on Friday.
Some of the storms could turn severe across southwestern portions of the province. Stay aware of potential watches and warnings in your community. Conditions can change rapidly as strong storms bubble up.
DON'T MISS: Canada’s election day forecast holds storms and sunshine
Storm risk builds Friday, large hail and winds possible
A strengthening low-pressure system moving into the Great Lakes from south of the border will push a warm and unstable airmass across southern Ontario to end the week.
Rain is expected across the entire Great Lakes region, with the unstable air building a potential for thunderstorms throughout southern Ontario—including the Greater Toronto Area.
Dynamics are favourable for some of the storms to turn severe in southwestern Ontario, around Windsor, Sarnia, Kincardine, and London. These storms would likely develop and arrive during the late afternoon and early evening hours.
The strongest storms in this region could produce large hail, strong wind gusts, and heavy rain.
Rainfall totals will increase the farther north and east you head through the province. Southwestern Ontario and the GTA are on track for 10-20 mm of rain, with higher totals possible in thunderstorms.
We could see 20-30 mm of rain into cottage country and eastern Ontario, with 30-40 mm on tap through Saturday into Ottawa as steadier rain washes over the region.
Thankfully, we’ll see conditions clear out in time for election day on Monday.
Stay with The Weather Network for the latest on conditions across Ontario.