My DH says that is true in geese only.
I know we tried to hatch some goose eggs and we had a thunder and lightning storm and lost all of them.
But we just recently had another one, and we had a power outage for about 3-1/2 hours with turkey, duck and chick eggs in the incubator and although they hatched a little late because of temps, almost all hatched.
So we can safely say it is not true as far as chicks, ducks, and turkeys go.
DH still says goose eggs will die if there is a bad storm.
Jean