===================================================================================
    feld=pvo; ptyp=vc; crsa=10,30; crsb=30,10; vcor=p; vwin=1050,200; cint=.25;>
        cmth=fill; cosq=0,white,4,dark.gray; cbeg=0; cend=5
    feld=the; ptyp=vc; cint=2; colr=red
    feld=uuu,vvv,omg; ptyp=vv
    feld=tic; ptyp=vb
   ===================================================================================

• Field Potential Vorticity is plotted (feld=pvo), as a vertical contour plot (ptyp=vc), the cross section is 10,30 to 30,10 (crsa=10,30;crsb=30,10), the vertical coordinate is pressure (vcor=p), the window will be form 1050 to 200 hPa (vwin=1050,200), contour intervals are set to .25 (cint=.25), the contouring method is filling (cmth=fill),  the colors will be white to dark gray (cosq), and the minimum and maximum values is set at 0 and 5 (cbeg=0; cend=5)

• Overlaid is Potential temperature (feld=the), as a vertical contour plot (ptyp=vc), contour intervals are set to 2 (cint=2), and they will be plotted in red (colr=red)

• Overlaid is circular wind vectors (feld=uuu,vvv,omg), as a vertical vector plot (ptyp=vv)

• Overlaid is tic markings (feld=tic), which is plotted as a vertical background plot (ptyp=bb)

• This frame will be plotted for every time period