using GFS analysis and forecasts...

  weather forecast for F00  -  F42 (every 6 hours)

   Z1000 and GAV
      AVOR (GEO)
      scale factor = 5, interval=4x10-5, min=16x10-5

      1000 HGHT --> Interval = 30m [scale factor = 0]

   Z500 and GAV
      AVOR (GEO)
      scale factor = 5, interval=4x10-5, min=8x10-5

      500 HGHT --> Interval = 60m [scale factor = 0]

   Z500 and GAVA5
      ADV ( AVOR (GEO), GEO ) {CVA shaded}
      scale factor = 9, interval=10x10-9

      500 HGHT --> Interval = 60m [scale factor = 0]

   Z500 and NLTHAD
      LAP( ADV (SUB(HGHT@500%PRES,HGHT@1000%PRES), GEO@1000%PRES ))
      scale factor = 13, interval=3x10-13 {positive values shaded}

      500 HGHT --> Interval = 60m [scale factor = 0]

   Z500 and LAD
      LAP( MUL( VVEL@700%PRES, MUL(DDEN(PRES,TMPC), -1.)))
      scale factor = 13, interval=20x10-13 {positive values shaded}

      500 HGHT --> Interval = 60m [scale factor = 0]

   Z700 vvelRH [NOTE: 500 hPa geo ht is plotted in blue contours]
      VVEL@700%PRES
      scale factor = 2, interval 5 m/s {positive values shaded}

      RH; RELH@700%PRES
      interval=10, minimum=70 {yellow contours}

   Z1000 WS10m
      MAG(OBS@10%HGHT), interval=5, min = 5 m s^-1, shading = 15 m s^-1

      1000 HGHT --> Interval = 50m [scale factor = 0]

   1000-500 Thickness
      5120 & 5460 m [dashed]

      500 HGHT --> Interval = 60m [scale factor = 0]

area:
   20;105;65;-165
   mercator projection