What a "normal wind" ("ruach metzuya") would do affects various laws of sukka construction. For example, in this guide from the Star-K to using sechach mats, they require that sechach-eligible measures be taken to make it so that the mat would not fly off in a normal wind before one ties sechach down to preserve it in the case of an abnormal wind.
How, practically, should one assess what would or would not happen under "normal wind" conditions?
I suppose one way would be to experiment with different setups over the years and see what happens, but that seems excessively risky, time-consuming, and unreliable due to small sample size. Also, the results would be completely unavailable the first few years. Another method could be to get someone who already has a great deal of sukka experience to assess the situation, but given that every site is different, and sukkas come in all different designs, it would seem to be difficult to get a reliable assessment for one sukka and site based on anecdotal experience in others. I expect that a full-blown engineering study would do the trick, but it seems unlikely that that's required, as "the Torah wasn't given to the ministering angels" (Berachot 25b), a class of which engineers are probably a subset.
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