To better understand the environment for offshore wind turbines, detailed large-eddy simulations can provide information about turbulence structures that observations simply cannot. We have developed (Bryan et al. BLM 2017) and verified (Worsnop et al. 2017a) a simpler LES approach and used these simulations to quantify gust factors for wind turbine design (Worsnop et al. 2017b) to help improve turbine design standards for offshore wind turbines. Working with structural engineers, we have used these data to assess loads on wind turbines (Kapoor et al. 2020).