Published on Jun. 8, 2026, 12:09 PM
Updated on Jun. 8, 2026, 12:10 PM
More severe weather targets the eastern Prairies this week
Severe weather is set to return to southern Saskatchewan and Manitoba on Tuesday after an active weekend across the Prairies. Key atmospheric conditions are aligning to support the development of severe thunderstorms in the region.
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Severe weather threat returns to the Prairies Tuesday
A negatively tilted trough over the Rockies, along with a strong jet stream extending into Manitoba, will enhance severe weather potential.
A surface low is expected to develop east of the Rockies in Montana and track northeast, acting as the main trigger for explosive storm development.
Conditions will feature high instability with ample CAPE, moisture, and steep lapse rates, creating an environment primed for severe thunderstorms.
By late Tuesday afternoon and evening, high-based supercells are forecast to develop over the southern Saskatchewan-Manitoba border, moving eastward.
These cells bring a significant risk for large to possibly very large hail. By evening, strengthening low-level wind shear may increase the potential for tornado development.
