[gradsusr] How Plot tow Variables on the same map?

[UwBe International - Severe Weather Research]

Hi Everyone

I try plot/draw more variables on the same map.
I have try the following:

'define 
prob=const(const(maskout(cape255_0mb,cape255_0mb-500),1.0),0,-u)*const(const(maskout(no4LFTX180_0mb,-2-no4LFTX180_0mb),1.0),0,-u)'
'define prb=const(const(maskout(prob,prob-1),1.0),0,-u))'

'set clevs 0 1'
'set ccols 0 7'
'd prob'

'define l1=const(const(maskout(scp,scp-1.5),1.0),0,-u))'
'define level1=const(const(maskout(l1,l1-1),1.0),0,-u))'

'set clevs 0 1'
'set ccols 0 2'
'd level1'

The Problem is now, that i only get red areas from level1 on the Map and 
nothing from 'd prob'.
If i comment out 'd level1' and only have 'd prob', then i will get all 
yellow areas.

How i can draw both?
I'm confused!

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