Thunderstorm Outlook for May 18, 2022.

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Canada:

There is a risk of severe thunderstorms across northwestern Ontario. The main threats are strong winds and hail.

Non-severe thunderstorms are possible across northwestern Ontario, southern Manitoba, southwestern Alberta, and southeastern British Columbia.

 

United States:

Severe thunderstorms are possible across parts of the mid Mississippi Valley into the Lower Ohio    Valley, the Upper Midwest into Upper Michigan, and the Colorado Front Range into the south-central High Plains.

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To learn more about the terms used in the thunderstorm outlook, visit our glossary.