ONTARIO: Thunderstorm Forecast for Friday, August 11, 2023

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There's the potential for some stormy weather in Deep Southwestern Ontario during the evening on Friday. While the risk isn't entirely clear-cut, we want you to be aware of what's on the horizon.

Isolated storms are expected to pop up over Michigan and could make their way into the Windsor and Chatham region after dinner time. For these areas, we're putting them under a 'slight' severe risk. The main concerns here are strong wind gusts, possibly reaching speeds of up to 100 km/h, and hail about the size of quarters. We also can't completely rule out the chance of a tornado, though it's not a high likelihood.



Now, here's where things get a bit tricky. The uncertainty comes from the timing of these storms. Some models are suggesting that storm development might happen quite late, even after 9 to 11 PM, long after the sun has gone down. The question is, can these storms still gather enough energy from the atmosphere to turn severe even in the late hours? The environment does seem to suggest that it's possible, which means the severe risk might linger past midnight and into the early hours of Saturday.