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Green Line Separater

WSR-88D Reflectivity, Layer Composite Reflectivity Maximum, and Storm-Relative Velocity Image Different radar data products can be displayed in a four-panel layout to assess storm structure. In the accompanying figure, the upper-left panel shows low-level base reflectivity data at 0.5 elevation angle.  The upper-right panel is a product called high-level layer composite reflectivity maximum (LRM), which displays maximum reflectivity values in the 33,000 to 60,000 layer. Here, the dark/black area reveals reflectivity values greater than 57 dBZ associated with a tall, intense thunderstorm.  The bottom two panels show storm-relative velocity map (SRM) data at 0.5 (same as reflectivity panel in upper-left panel) and 1.5 degree elevations. This combination of data allows forecasters to assess low-level storm structure and the vertical depth of high reflectivity cores simultaneously. This storm produced wind damage and large hail on June 13, 1997 in east-central Kentucky.

Green Line Separater
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