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Cloud-to-ground lightning activity in mesoscale convective complexesAn analysis of the evolution of cloud-to-ground lightning discharges attending convective storms in mesoscale convective systems was conducted in the framework of the mesoscale convective complexes (MCCs) life cycle. The lightning discharge data were acquired by a commercially available lightning detection and location system. Peak rates averaged 42/min for the MCCs analyzed; these rates are comparable to the highest observed rates within other mesoscale storm systems and are greater than 20 times the rates previously observed in isolated thunderstorms. Lightning damage occurs with half of the MCCs and is most frequent between the development and the mature phases of the MCC life cycle. The most active period is also characterized by the greatest average number of discrete strokes and largest fraction of multiple-stroke discharges. The total cloud-to-ground lightning activity and maximum flashing rate do not appear to be directly related to either the size of the cloud shield or total duration of the MCC.
Document ID
19870062929
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goodman, S. J.
(NASA Marshall Space Flight Center; Universities Space Research Association, Huntsville, AL, United States)
Macgorman, D. R.
(NOAA, National Severe Storms Laboratory, Norman OK, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1986
Publication Information
Publication: Monthly Weather Review
Volume: 114
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
87A50203
Funding Number(s)
CONTRACT_GRANT: NASA ORDER H-39299-B
CONTRACT_GRANT: NAS8-34748
Distribution Limits
Public
Copyright
Other

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