Obs:
If the wind strength is ever exactly 0, all wind effects become disabled for the rest of the mission, even if the wind is subsequently increased by either the in built weather system or script commands. The returned value of windStr continues to change as expected, but no environmental effects are observed (moving vegetation and clouds), and the wind vector remains at [0,0,0].
Exp:
Wind effects and wind vector should always reflect the current wind strength.