This environment includes high storm energy, ample moisture, strong winds aloft, and a trigger to kick off the development of thunderstorms.
A surface low enters the region around 6 p.m.to 7 p.m. while a trough organizes in Montana, acting as triggers for severe thunderstorm development.
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Storms that bubble up on Saturday will encounter favourable dynamics to quickly turn severe, potentially growing into supercells capable of producing large hail and strong, potentially damaging, wind gusts. A threat for tornadoes can’t be ruled out at this time.
By the late afternoon, thunderstorms trigger and may initially become supercells.
Steep lapse rates support very large hail (ranging between ping pong ball- to tennis ball-sized), along with strong winds.
Residents in impacted areas are urged to keep cell phones charged ahead of the storm in case of any power disruptions or outages to receive weather alerts (click here to see how to turn on alert notifications from The Weather Network app).
