Analysis on the Characteristics and Influence System of Severe Wind in Zhumadian
[Purposes]This paper aims to improve the forecast accuracy of local disaster gale and advance warning of Zhumadian.[Methods]Using the observation data of Zhumadian National Station from 2015 to 2022,the time variation characteristics of disaster gale and the error deviation law between Zhuma-dian and EC model forecast were statistically analyzed.[Findings]Severe wind in Zhumadian showed the characteristics of frequent occurrence in summer and large forecast deviation,accounting for 61%of the whole year,mainly convective gale.[Conclusions]Through the analysis of the influence system and mesoscale characteristics of severe wind weather in summer half year and combined with the knowledge of synoptic principles,two typical conceptual models of disaster gale weather with large forecast devia-tion were summarized,which provide reference for the gale forecast.
Zhumadiancharacteristics of severe windforecast deviationinfluence system