上海雷暴大风时空特征及其预警有效性评估

周伟东, 戴建华, 管理, 傅洁, 陈浩, 王蕊, 吕青

Spatiotemporal characteristics of thunderstorm gales and evaluation of effectiveness of early warning signals in Shanghai

ZHOU Weidong, DAI Jianhua, GUAN Li, FU Jie, CHEN Hao, WANG Rui, LYU Qing

表4 大风红色预警信号有效性评分标准

Tab.4 Criteria for the effectiveness rating of thunderstorm gales red warning signals

风力等级 预警时效/min 漏报 空报 ≥20 15~<20 10~<15 5~<10 0~<5 0 -30~<0 <-30 极大风≥13级或平均风≥12级 100 80 60 40 20 0 0 -100 -100 极大风≥12级或平均风≥11级 50 40 30 20 10 0 -50