http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_gfs.sh?ctlfile=gfs_00z.ctl&ptype=ts&var=HPBL&level=1000&op1=none&op2=none&hour=12Z&day=25&month=apr&year=2024&fhour=12Z&fday=01&fmonth=may&fyear=2024&lat0=45&lat1=46&lon0=122&lon1=123&plotsize=800x600&title=&dir=