Are you a WRF-Hydro user? If so, I have provided some resources and advice below for using MODIS landcover type in your WRF-Hydro simulations.
First, you can consult the WRF Pre-processing documentation for how to select MODIS
here. Next, you do need to make sure you have the correct global attributes set in your geogrid and wrfinput files, and you need to make sure those two files are consistent as far as land cover, land mask, and soil layers. You will also want to make sure you are using the HYDRO.TBL file for MODIS types. The documentation should have the full details.