[gradsusr] Question about why the wind vectors barbs not showing up for the 0-6 KM Shear difference

[Nimrod Micael]

The shaded is plotting fine but the wind barb is not showing up. Can anyone
help me out why?

'set gxout shaded'
'set lev 1000'
's= mag(u,v)'
'set lev 500'
'a = mag (u,v)'
'set cmin 20'
'bulk = (a-s)*1.92'
'd bulk'

'set gxout barb'
'set lev 1000'
'barbs= mag(u,v)'
'set lev 500'
'barba = mag (u,v)'
'set cmin 20'
'bulkb = (barba-barbs)*1.92'
'd bulkb'


Wind vectors are not showing up. Why???

Thanks.

-- 
Nimrod Micael
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