The southwestern Zhejiang Province has a forest coverage of over 79 %. Lightning strikes caused forest fires more frequently in the last two years. Based on four representative examples, an analysis is made of the surface and weather conditions for lightning-caused forest fires. Some valuable results arg obtained. It is found out that some of the surface and weather conditions for lightning-caused forest fires in the southwestern Zhejiang Province are different from those in North China. The findings may provide useful references for forest-fire fighting in South China.