My catchment area is 10000 Sq km. When I am generating CN grid in HEC Geohms, it is taking around 105 hours. The grid is not properly formed. Some portion of the grid is missing from the middle. The value is ranging from 0-97, whereas I have given the lowest value as 30 in the CN lookup table. Moreover, the intersected soil land use shapefile is getting corrupted after the completion of process.
