Pressure Levels
                             -------- ------

The post-processor interpolates/extrapolates data to the following levels:

    1000, 925, 850, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 
    50, 30, 20, 10, mb, 


For those who work in metric units:

    100, 92.5, 85, 70, 60, 50, 40, 30, 25, 20, 15, 10, 7, 5, 3, 2, 1, KPa

The post-processor does not output any humidity data above 300 mb (30 KPa)
and vertical motion (omega) above 100 mb (10 KPa).