GFS Forecast 850 hPa Heights and Relative Vorticity

Previous Forecasts
Current Day 00Z 06Z 12Z Selected N/A
One Day Old 00Z 06Z 12Z 18Z
Two Day Old 00Z 06Z 12Z 18Z
Three Day Old 00Z 06Z 12Z 18Z
Four Day Old 00Z 06Z 12Z 18Z

Note: Trouble shooting for the animation