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          DESCRIPTION: Layer Composite
         Reflectivity is similar to Composite Reflectivity,
         except that it is the maximum reflectivity in a vertical
         column in a specified horizontal layer. Layer Composite
         Reflectivity was intended mostly for aviation purposes, but
         it is helpful to gauge the vertical structure and intensity
         of storms. 
         
         PRODUCTS: There are three (3) Layer Composite
         Reflectivity NIDS products: 
         
         
            
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                   LCREF1
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                   "Low" layer 
                  
                  (Surface to 24,000 feet)
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                   LCREF2
                 | 
                   "Middle" layer 
                  
                  (24,000 to 33,000 feet)
                 |  
            
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                   LCREF3
                 | 
                   "High" layer 
                  
                  (33,000 to 60,000 feet)
                 |  
          
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