GridStat_fcstHREFmean_obsNOHRSC.conf
  The mean of snow is from EnsembleStat
GridStat_fcstHREFmean_obsCCPA.conf
  The mean, pmmn, plmm, avrg of APCP, all are from HREF mean/pmmn/plmm/avrg  files
GridStat_fcstHREFmean_obsCCPA.conf
  The prob of APCP are from HREF prob files