Climatological studies of wind, snow, rain and other meteorological variables provide vital information required in the design of engineered structures. Wind loads, due to hurricanes, typhoons or tornadoes in some regions, are quite often the largest environmental load on tall structures. The complex grouping of buildings in urban settings sometimes creates adverse wind conditions which affect the safety and comfort of people in the streets below. Low-rise buildings with large-span roofs are susceptible to wind and wind-shaped snow loads in areas with colder climates. The Alan G. Davenport Wind Engineering Group studies these kinds of problems using statistical models of the climate which can be combined with wind tunnel test results to provide accurate predictions of full-scale behaviour for each project.