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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. |
