Smoky crystal semiprecious stones are typically not recommended for exterior applications in very windy climates. Smoky crystals, like other semiprecious stones, can be quite delicate and may be prone to weathering or damage when exposed to severe weather conditions such as strong winds, rain, and extreme temperature fluctuations. Additionally, constant exposure to wind can increase the chance of the stones getting scratched or chipped. It is generally advisable to use stones specifically designed for exterior applications, such as natural stones like granite or durable man-made materials like concrete, for outdoor projects in windy climates.