Simiu et al. (1979) used the Extreme Vale Type I distribution to analyze records of annual peak wind speeds at 129 locations across the United States ("Extreme Wind Speeds at 129 Stations in the Contiguous United States, NBS Building Science Series 118, U.S. Department of Commerce). The wind speed data for Minneapolis, Minnesota is available as a text file or as an Excel spreadsheet. For Minneapolis, Minnesota, Simiu et al. report an estimated 50-year recurrence interval wind speed of 73 mph (Table 3.4.1, page 17). Using the HydroTools ExtremeValue() function and the annual maximum recorded wind speeds in Minneapolis from 1938-1979, the estimated 50-year recurrence interval wind speed is 72.7 mph.