I don't think it's correct to say just the direction of the wind is a problem. It is a combination of changing direction, high wind gusts, and temperature.
Basically, there is only a vary narrow 'range' of the operating environment of a large scale wind turbine.
26 posted on 06/02/2017 2:35:25 PM PDT by UCANSEE2
(Lost my tagline on Flight MH370. Sorry for the inconvenience.)