Model Loop
click here for 500 trends click here for 850 trends
NAM: f00 f06 f12 f18 f24 f30 f36 f42 f48 f54 f60 f66 f72 f78 f84
  GFS: f00 f06 f12 f18 f24 f30 f36 f42 f48 f54 f60 f66 f72 f78 f84

For more NAM 18Z, go to http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/nam/18/model_m.shtml

For more gfs 18Z, go to http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/gfs/18/model_m.shtml