Thank you so much Lee...I will try this command. Elizabeth Lee Byerle wrote: > Elizabeth, > > Try the wgrib2 utility to convert to grib edition 1: > > http://www.cpc.ncep.noaa.gov/products/wesley/wgrib2/ > > e.g. wgrib2 -g21 grib2filename -o converted_grib1_file.out > > This converts the grib2 to grib1 and grib1 format can be used with GrADS. > > Lee >