so, quick writeup on the tornado potential the next few days.
Today still appears to be focused within that boundary in NE SD but I do expect rapid upscale. Sloshy windbag and brief tornadoes a possibility. Wouldn't rule out one in NE Montana conditionally either.
TOMORROW
Mini supercells in Central MN could drop a isolated tornado. No other area of interest.
THURSDAY
MCV potential in N IL, albeit high uncertainty on placement and etc, models have consistently picked up on this disturbance. I expect a tornado threat somewhere in this vicinity. Conditional window for initiation in N SD, but globals aren't optimistic. If storm development uptrends, a isolated all hazards threat will exist with any supercell.
FRIDAY
W Alberta could see a isolated supercell or two with low end tornado potential. Moisture quality is the question and how much instability. A very sneaky threat here and the only one at that
SATURDAY
Globals are very confident in a potentially robust window for severe weather, including all hazards in Central Alberta here. 65+ effective shear may lead to long lived supercells, capable of a tornado threat and large hail. Watching this day closely given the area it's in.