广西 1 998/1 999年秋冬春出现了大范围干旱伴高温的异常天气 ,其中秋冬春雨量为广西近 40年最少年 ,秋冬春平均气温是自 1 959年以来同期气温最高的一年。过程持续 8个月 ,为历史上所罕见。本文对这次异常天气进行了诊断分析 ,分析发现 :　　 1 .厄尔尼诺与拉尼娜事件是导致广 In the fall and winter of 1 998/1 999 Guangxi, there appeared anomalous weather with a wide range of arid and high temperatures, of which the spring and autumn rainfall in autumn and winter was the youngest in Guangxi in nearly 40 years. The average temperature in autumn and winter was the highest one since1995. The process lasts for 8 months and is rare in history. This article conducted a diagnostic analysis of the abnormal weather, the analysis found that: 1. El Nino and La Nina event is led to Canton