罕见暴雪天气过程个例分析

Weather process analysis on a rare snowstorm

利用天气图和数值预报产品、物理量场等资料对2008-10-22—26大兴安岭地区罕见暴雪天气过程进行分析和总结。锋区移涡及低压入海西退,加之东部鄂海高压的阻塞和较好的水汽通道等综合作用是造成此次大暴雪天气的主要原因。

This article uses the material of weather map, numerical forecasting product and physical quantity field to carried on the analysis and the summary for Daxinganling area rare snowstorm weather process on Oct. 22--26,2008. This snowstorm weather was mainly caused by the frontal zone moves to the whorl and west^low pressure entering the sea draws back, in addition the eastern Hubei sea high pressure blocking and the fairly good water vapor channel etc.