Large hail and tornado threat with severe storms over Sask., Manitoba
Severe thunderstorms with risks of large hail, isolated tornadoes, and strong wind gusts are expected to develop in southern Manitoba on Tuesday afternoon, affecting areas like Brandon between 3–6 p.m. and reaching Winnipeg by evening
The eastern Prairies brace for an unstable atmosphere on Tuesday as persistent southerly winds bring heat and moisture into the region, intensifying storm potential. Thunderstorms are set to develop Tuesday afternoon and evening, with risks of large hail and an isolated tornado threat over parts of southern Manitoba.
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Be sure to stay alert to the changing conditions and stay updated on any weather warnings in your area.
Weather Highlights:
Thunderstorms are expected across the eastern Prairies this week, driven by lingering heat
Stronger storms are likely in southern Manitoba, including Brandon and Winnipeg, Tuesday, with potential for gusty winds, hail, and a tornado
Severe thunderstorms, large hail, and tornado risk for southern Manitoba Tuesday
Severe thunderstorms are expected Tuesday as a shortwave trough moves across southern Manitoba and North Dakota, creating conditions for supercell development.
Wind shear and steep lapse rates will support these storms, with large hail—potentially toonie-sized or larger—the primary threat. Forecasters suggest one or two tornadoes are also possible, along with strong outflow wind gusts.
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Thunderstorms are forecast to initiate in the U.S. before moving into southwestern Manitoba during the afternoon. Isolated storms will evolve into widespread clusters by early evening, tracking northeast from southwestern Manitoba toward the Interlake and eastern regions.
Brandon faces the greatest storm risk from 3–6 p.m. local time, with thunderstorms expected to reach Winnipeg after dinner and into the evening hours.
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Conditions will stabilize after the system passes, marking the end of the current extreme heat. Stay weather-aware and monitor alerts for updates.