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WSR-88D 0.5 Degree Base Reflectivity Image of Heavy Snow in Kentucky 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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