Sherly Shelton
Dear K Kevin Sampsom,
I am encountering an issue while using the WRF-Hydro ArcGIS Preprocessor (GEOGRID_STANDALONE.pyt) to generate LAKEPARM files from a lake shapefile. The process works successfully when using a single lake shapefile, but fails when processing multiple lakes. The error message is as follows:
Completed sorting lakes by minimum HydroSeq in 0.00 seconds.
Altering 2 lake COMID value(s) to 111448 from: [777, 777]
Altering 1 lake COMID value(s) to 787 from: [112167]
Exception: '<' not supported between instances of 'NoneType' and 'int'
Error encountered after 295.50776624679565 seconds.
ERROR: Failed to execute (ProcessGeogridFile).
I have reviewed my lake shapefile and checked for missing COMID values, but the issue persists.
Could you please provide guidance on how to resolve this issue? Additionally, if there are any recommended preprocessing steps to ensure COMID values are properly assigned, I would appreciate your advice.
Thank you for your time and assistance.
Best regards,
Sherly Shelton