Tuesday, June 15th 2021, 11:52 pm - The extreme heat and threat for severe weather shifts into Manitoba Wednesday after storms spawned several tornadoes in southern Saskatchewan Tuesday evening.
Tuesday evening was quite a stormy night on parts of the Prairies, with tornado warnings issued in southern Saskatchewan Tuesday evening, prompted by severe thunderstorms that produced several tornadoes. Visuals of the twisters have surfaced on social media, with multiple sightings in different locations. Looking ahead to Wednesday, the severe storm risk and heat will push into Manitoba. Meanwhile, northern portions of British Columbia, Alberta, and Saskatchewan will continue see a deluge of rain over the coming days, as well, with more than 100 mm of rain possible in northwestern Alberta through Thursday. Beyond, much cooler and calmer conditions will settle across the region late week.
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WEDNESDAY: TEMPERATURES COOL ON WESTERN PRAIRIES AS STORM THREAT, HEAT SHIFTS EASTWARDS
Tuesday evening saw multiple tornado warnings issued in southern Saskatchewan, eliciting scores of visuals on social media of the tornadoes. A tornado developed near D'Arcy, and as the storm travelled east, it produced multiple tornadoes near Fiske, McGee, and eventually near Rosetown.
Environment and Climate Change Canada, and the Northern Tornadoes Project have yet to determine the exact path and strength of the twisters.
Severe thunderstorms are expected to continue into the overnight hours in Saskatchewan.
Looking ahead to Wednesday, temperatures will drop in Alberta and Saskatchewan after a few days of intense heat. The ridge will move further away from the two provinces, bringing a cooldown, shifting the 30-degree temperatures and humidity into Manitoba.
As well, the risk for thunderstorms will push into Manitoba Wednesday as the upper-level ridge and low-pressure system moves eastward.
Severe thunderstorms are possible on Wednesday afternoon across a portion of southern Manitoba, including the Winnipeg area. Any storms that do fire up may produce large hail, strong wind gusts, and heavy rain.
HEAVY RAIN PROMPTS WARNINGS ACROSS THE NORTHERN PRAIRIES
The same centre of low pressure responsible for the severe thunderstorms on Tuesday will produce a long-duration rain event for the northern Prairies.
Soaking rains are likely from northeastern British Columbia east toward Hudson Bay as the low meanders through the area. A widespread swath of 30-75 mm of rain is possible for communities across the region through Thursday, with the potential for more than 100 mm of rain in northwestern Alberta.
Rainfall warnings are in effect in parts of Alberta, with the threat for localized flooding in low lying areas.
LOOK AHEAD: COOLER PATTERN DOMINATES INTO THE WEEKEND
Cooler weather will spread across the region mid-week with near or below seasonal temperatures dominating late week, the weekend and into next week.
Scattered thunderstorms are anticipated for central and southern Saskatchewan and Manitoba through Thursday, but most of the region will not see any rain. Wind gusts of 60-90 km/h are forecast across the region, but could approach 100 km/h locally for areas north of Edmonton.
There is the potential for a period of showers and thunderstorms this weekend, especially for Alberta, but there is no widespread soaking rain in sight for the southern areas.
Stay tuned to The Weather Network for the latest forecast updates across the Prairies.
Thumbnail courtesy of Dave Sills/Northern Tornadoes Project.