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The Effects of Two Unsteady Mesoscale Condition on Hail Weather in Southeast Guizhou

Chi Zai-xiang, Bai Hui, Gong Xue-qin, Peng Xing-de, Jin Song-yu

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Abstract

The data of hail and its ground 0 cm temperature of 16 surface meteorological stations at 14:00 in April～May 1971-2005 are analyzed,the effects of two unsteady mesoscale meteorological processes to hail weather in southeast Guizhou are observed.The results show that the convective instability energy,orographic lifting effect,low-level horizontal helicity and gradient changes of the ground 0 cm temperature at 14:00 is closely related to hail shooting under the favorable macroscale circulation background.These factors offer the better basis to forecast the disaster weather with and without hail shooting.

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What this paper is about

The data of hail and its ground 0 cm temperature of 16 surface meteorological stations at 14:00 in April～May 1971-2005 are analyzed,the effects of two unsteady mesoscale meteorological processes to hail weather in southeast Guizhou are observed.The results show that the convective instability energy,orographic lifting effect,low-level horizontal helicity and gradient changes of the ground 0 cm temperature at 14:00 is closely related to hail shooting under the favorable macroscale circulation background.These factors offer the better basis to forecast the disaster weather with and without hail shooting.

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Available abstract

The data of hail and its ground 0 cm temperature of 16 surface meteorological stations at 14:00 in April～May 1971-2005 are analyzed,the effects of two unsteady mesoscale meteorological processes to hail weather in southeast Guizhou are observed.The results show that the convective instability energy,orographic lifting effect,low-level horizontal helicity and gradient changes of the ground 0 cm temperature at 14:00 is closely related to hail shooting under the favorable macroscale circulation background.These factors offer the better basis to forecast the disaster weather with and without hail shooting.

Key concepts: Mesoscale meteorology, Orographic lift, Climatology, Meteorology, Environmental science, Convection, Orography, Convective storm detection

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