PHOTOS: Powerful storms hit eastern Ontario, southern Quebec Sunday
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High instability and ample moisture throughout the atmosphere provided plenty of fuel for storms to thrive as a cold front arrived during the day Sunday. The moisture-packed atmosphere made high wind gusts and localized flooding a particular risk throughout the day.
Numerous clusters of thunderstorms affected the area; one targeted southern Quebec while another developed over eastern Ontario.
Winds gusted to around 60 km/h at the Ottawa Airport as the thunderstorms passed overhead on Sunday afternoon. Montreal-Trudeau International Airport reported visibility of less than one kilometre and very heavy rainfall not long after.
Strong winds knocked down trees and power lines across the two provinces. Heavy rainfall led to localized flooding, especially in southern Quebec.
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Hydro-Quebec saw 60,000 customers without power at one point on Sunday, with the number down to around 33,000 customers without power as of 4:15 p.m. local time. Over in Ontario, storms knocked out power to a few thousand customers.
The risk for severe weather will continue into the early evening hours as the storms progress east across the region.
See some of the visuals from Sunday's storms in Ontario and Quebec, below.
Power outage and storm rolling through Ottawa #onstorm @weathernetwork pic.twitter.com/wBdNFZx8Yx
— Tanner (@nautilat0r) July 13, 2025
Keep an eye on the sky Chatham-Kent. Taking at SportChek parking lot in Chatham. #onstorm @BlackburnRadio @cknewstoday pic.twitter.com/1aSOasRWqZ
— Jason Cooper (@Jsncooper) July 13, 2025
Gm ☕️ ⛈️Here comes the rain again, like a wave 😍@weathernetwork@StormhunterTWN @StormHour #onstorm pic.twitter.com/qqdooXGvsw
— Dewucme |🇨🇦📸🎨 (@Dew_u_c_me) July 13, 2025
#meteoqc pic.twitter.com/lTDiSYwyd4
— denarchy (@denarchy) July 13, 2025
Strong storm heading east. Those camping in Presqu'ile Provincial Park should be ready to take shelter. Grafton, Ontario #onstorm pic.twitter.com/U3ZpxiSgjX
— Chris Knox (@ChrisKnoxPhotog) July 13, 2025
Storm in Vars,ON at 3:43pm #onstorm pic.twitter.com/e42skqjQ1G
— Zoe Bazinet (@ZoebazinetWX) July 13, 2025
Sunday morning storm sweeping across downtown Toronto #onstorm @weathernetwork pic.twitter.com/qggw2Upywo
— Dustin (@thelandofdustin) July 13, 2025
Header image submitted by Marie-Lise Valois in La Plaine, Quebec.
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