Re: Heavy winds?
With an anemometer the cups are pushed, on the 'wrong way' side of rotation you're fighting the drag.. I think the density difference will even out/cancel in this case.
Bernoulli is an 'easy' way to explain lift but it's not the true science.
As an extreme illustration, think of standing on a dock with 5 knots of wind.. no problem... then go stand in a creek with 5 knots of current running... good luck staying on your feet. Same velocity a lot more force....
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)