雄安新区2018年一次强降水过程诊断分析

Diagnosis and Analysis of a heavy precipitation process in xiongan New Area in 2018

分析2018年8月5—6日河北省雄安新区局地短时强降水天气,结果表明:500 hPa副高维持少动,700 hPa和850 hPa上河北省中南部受台风减弱低压倒槽影响,且河套附近暖中心加强东伸,造成前期高温高湿,为强降水提供充足水汽和能量条件,地面上受从东北平原东移南下冷空气影响,有偏东风且在保定南部有辐合线,为强降水提供重要动力条件,在综合分析基础上,得出此次强降水形成原因。

Analysis on August 5,6,2018 male Ann district in hebei province local short-time heavy rain weather,the results show that the 500 hPa subtropical high maintenance,less 700 hPa and 850 hPa in central and southern hebei province affected by the typhoon weakened low down trough,and warm center near hetao strengthen east,caused the early high temperature and high humidity,provide sufficient moisture and energy conditions for rain,the ground is influenced by the cold air from the northeast plain east south PianDongFeng and convergence line in the south of baoding,provide important dynamic conditions for the heavy rain,on the basis of comprehensive analysis,it is concluded that the strong precipitation formation.