Alberta: Thunderstorm Forecast for Thursday, May 4, 2023

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Expect non-severe thunderstorms to roll in during the mid to late afternoon and early evening, with the highest potential along the Rocky Mountains. These isolated pop-up storms could bring small hail, heavy rainfall, strong wind gusts, and occasional lightning strikes.

While Calgary and Lethbridge may see some action towards the later part of the day, it remains questionable. Although storms should be mostly non-severe, we can't completely rule out the odd storm becoming severe, bringing moderate-sized hail up to nickel or quarter size.