Synoptic environments favourable for urban convection in Atlanta, Georgia

Mace L. Bentley, J. Anthony Stallins, Walker S. Ashley

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

An examination of synoptic environments conducive to urban thunderstorm development surrounding Atlanta, Georgia, was conducted. Synoptic environmental characteristics were evaluated utilising regional analyses of heights, winds, temperature, and moisture characteristics as well as several thermodynamic variables. A flexible beta cluster analysis was used in order to identify disparate groupings of common synoptic and thermodynamic environments. These groupings were then further analysed through the production of synoptic composites, radar, and lightning distributions. Although the analysis stratified the data by days with weak synoptic flow and maritime tropical airmass characteristics, enough variation existed within the synoptic and thermodynamically grouped parameters to identify four distinct environments present during urban thunderstorms. Environments exhibiting moderate thermodynamic instability were found to produce the highest flash rates and most frequent composite reflectivity days.

Original languageEnglish
Pages (from-to)1287-1294
Number of pages8
JournalInternational Journal of Climatology
Volume32
Issue number8
DOIs
StatePublished - Jun 30 2012

Keywords

  • Climatology
  • Thunderstorm
  • Urban

ASJC Scopus subject areas

  • Atmospheric Science

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