DATASET HISTORY.  cpcllfct.dat cpcllfcp.dat
    
    Feb. 16, 1999    Data were interpolated by the INTERGRAPH software.  Borrowing 
rules were used for the non-favored categories such that as follows.
   Given a Probability P for most likely category in the above or below class: 
       Set the opposite category = .6666-P for P.  When P > .6333 then the opposite
category is set to .033.  Some minor variations exist due to interpolation.  The 
INTERGRAPH hardware was removed in June, 1998 so the data record ends on for the forecast
using data through May, 1998.   Forecasts for Lead 1 were digitized manually through
1998.       
    Feb. 15, 2000.   The new data was added to the original probabilities obtained with
 Intergraph interpolation and borrowing rules.  The original data ended with the forecast
labeled 1998 month 4.   The manually interpolated values were removed (the first lead 
from the datasets labeled 1998  month 5 through 1999 month 1) and replaced with the 
probabilities obtained from NTRANS interpolation and transformed-normal distribution
integration to obtain non-favored categories. 
    Feb. 16, 2000  The Precipitation forecasts were found to be in error for the new
months (past those labeled 5/1999). Not yet corrected.  
    March 13, 2000  Precipitation forecasts are corrected.