Based on the daily data of 65 meteorological stations from 1961 to 2010in Shanxi Province,the spatial-temporal distributions of gale days were analyzed,and the risk probability of strong winds were calculated through information diffusion theory.The results showed:(1)The annual average gale days reduced significantly with the rate of-3.1d/10 ain recent 50years;(2)The gale days with zonal distribution in Shanxi Province were more intensive in northern area,where the annual gale days were mostly more than 15 ...