The WUI is the area where housing and natural vegetation meet or intermingle. In the coterminous United States, between 1990 and 2010, the size of the WUI increased by 33% to 770,000 km2 (190.3 ...
Flames burn near power lines in Sycamore Canyon as seen from West Mountain Drive in Montecito, Calif., in December 2017. (Santa Barbara County Fire) The WUI is the area where housing and natural ...