Surface measurements of the 5 June 2013 damaging thunderstorm wind event near Pep, Texas

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High-resolution wind measurements at 2.25 m in height were used to investigate the mean and turbulence properties of an extreme thunderstorm wind event in West Texas. These data were combined with single Doppler scans from the Texas Tech University Ka-band mobile Doppler radars systems (TTUKa) to provide meteorological context over the surface measurement stations for portions of the outflow. Several features characteristic of a severe wind event were noted in the radar data, including a bowing portion of the thunderstorm complex and a small circulation on the leading edge. These features were reflected in the surface wind time histories and provided natural separation between various regions of the outflow. These features also contributed to the peak 1 -s gust at all measurement stations. The turbulence characteristics of each outflow region were also investigated and compared. Reduced values of running turbulence intensity and elevated values of longitudinal integral scales were noted during the period of peak wind speed. Larger scales of turbulence within the outflow were also suggested via spectral analysis.

Original languageEnglish
Pages (from-to)185-204
Number of pages20
JournalWind and Structures, An International Journal
Issue number2
StatePublished - Feb 2017


  • Non-synoptic wind and turbulence
  • Radar 1
  • Surface measurements
  • Thunderstorm


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