Enter the design value of the wind speed. These will vary according to geographical location and according to company or vendor standards. Here are a few typical wind speeds in miles per hour.
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85.0 miles per hour
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100.0 miles per hour
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110.0 miles per hour
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120.0 miles per hour
Enter the lowest value reasonably allowed by the standards you are following, because
the wind design pressure (and thus force) increases as the square of the speed.