A rare, prolific tornado-producing supercell in northwest Alberta tonight!
Low-topped supercell environment with strong low level shear, and low LCL heights.
In other words, the parent storm was relatively short and small, with low cloud bases.
Screenshots of the tornadoes from the Alberta Storm Reports Facebook page. First tornado was near Girouxville just after 8PM, and the second near High Prairie around 930PM. #abstorm@NTP_Reports
It's not over yet! More rain is on the way for much of the Prairies this week, and timing will be everything. Before you make plans for the week ahead, take a look at the latest Canadian Prairie Weather Outlook at Rural Roots Canada: ruralrootscanada.com/prairie…
Classic sleeper severe weather setup possible Tuesday in the southwestern Prairies...
Could see fast-moving, long-track thunderstorms with the potential of wind gusts over 100km/h and 3-4 cm hail.
Wind shear and stability profiles have supported similar severe weather in the past.
While certainly not a guarantee, folks across southern Alberta and southwestern Saskatchewan should stay weather aware on Tuesday.
Storm threat in southern Alberta will begin around midday near and north of Calgary, and progress east/southeastward into southwestern Saskatchewan by late afternoon or early evening. #abstorm#skstorm
Weather Channel has maintained its top of the media trustworthiness because they strictly "stick to weather" and sell an amazing product sans politics. Their brand is gold standard, by far.
No one expects the same from CNN, ABC News, or the Washington Post.
Note preliminary: It appears Manitoba has set a new 24-hr provincial rain record with the storms on Tuesday night. I've confirmed a high-quality gauge measurement of 292 mm (11.48 in) approx. 2 km west of Stonewall. #mbstorm
For all the flack the RRFS has been catching, it was the only model to consistently show supercells affecting the RRV yesterday. Indeed, many runs specifically showed a supercell right over Winnipeg. It has certainly performed no worse than any other CAMs over the past 3-4 days.
Storms have exited Winnipeg for now, but more are on the way. A strong line of storms is presently located from Portage la Prairie southward to just west of Morden. This line will impact the Red River Valley over the next few hours. #mbstorm