Monthly and seasonal occurrences of potential flash flood-producing rains determined from Manually Digitized Radar dataAn analysis is conducted of a small 4-year climatological data base of Manually Digitized Radar (MDR) data to infer the monthly and seasonal distributions of the relative frequency of occurrence of potential flash flood-producing rains over the Central and Eastern U.S. Some possible meteorological mechanisms for producing potential flash flooding rains are discussed in terms of the relative maxima and minima in the monthly and seasonal frequency distributions over the MDR network. Frequencies were found to be generally higher in more southern locations and lower farther north in all months and seasons. However, most locations experienced an annual cycle in the frequency of occurrence with maxima in summer and minima in winter. In given seasons and months, local areas of maximum and minimum occurrences may be related to quasi-stationary meteorological processes that trigger and organize intense convection over a common area.
Document ID
19820035610
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wilson, G. S. (NASA Marshall Space Flight Center Space Sciences Laboratory, Huntsville, AL, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: In: Conference on Weather Forecasting and Analysis