Accession Number : AD0756571

Title :   A Study of a Severe Local Storm of 22 Apr 71.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Horsewell,Charles E.

Report Date : SEP 1972

Pagination or Media Count : 70

Abstract : A study was made of a severe storm that occurred on 22 April 1971 southeast of Norman, Oklahoma. The life cycle of the storm from origin, through mature stage, to eventual incorporation into a squall line was analyzed. The cell displayed all of the characteristics of a severe local storm, including a hook echo, echo-free vault, sloping overhang, funnel and movement 20 degrees to the right of the mean tropospheric wind. Mesoscale circulations at low and middle levels during the severe stage were revealed by aircraft measured winds. Aircraft meteorological parameter measurements showed the vertical structure and extent of the low-level moist layer. Three-dimensional storm structure at the time a funnel was sighted was inferred from WSR-57 radar antenna tilt sequences and airborne RDR-1 radar RHI profiles. (Author)

Descriptors :   (*STORMS, METEOROLOGICAL PHENOMENA), RADAR CROSS SECTIONS, WIND, CORRELATION TECHNIQUES, METEOROLOGICAL RADAR, THESES, OKLAHOMA

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE