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WSR-88D base reflectivity data shows where and how hard it is raining or snowing, as well as
precipitation intensity trends and movement. The accompanying
image shows reflectivity data during the January 17, 1994 snowstorm
over Kentucky. Blue represents light snow, light green represents moderate snow, while dark green and especially
yellow colors represent heavy snow (with large snowflakes). During
winter storms, WSR-88D reflectivity data clearly can show banding
of precipitation which leads to zones of heavier precipitation
amounts over certain areas. At this time, a primary snow band
was oriented northeast-to-southwest from near Lexington to just
south of Louisville to near Bowling Green. Within this band,
smaller bands of even heavier snow were located in north-central
Kentucky just south of Louisville. One to two feet of snow fell across parts of central
Kentucky during this storm.
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