Take cover immediately, if threatening weather approaches. If you hear a roaring sound or see a funnel cloud, swirling debris near the ground, flying debris, or any threatening weather approaching, take shelter immediately.
Go indoors to a room on the lowest floor, away from outside walls and windows, such as a basement, bathroom, stairwell or interior closet. Leave mobile homes, vehicles, tents, trailers and other temporary or free-standing shelter, and move to a strong building if you can. As a last resort, lie in a low spot and protect your head from flying debris.
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—as 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.