Wind barb size and winds less than 5kts

[Dan Leins]

All,

Can anyone tell me how I can specify the size of wind barbs?  I'm plotting
winds at various levels and the barbs I'm getting are quite large, too large
for my display.  I've already decreased the thickness of the barbs but I
need to make them even smaller. Also, I'd like to know how I can set up
GrADS to display only wind barbs of 5kts or greater, perhaps with zeroes in
place of the light winds. Right now I've got light winds under a surface
ridge but am showing wind barbs all over the place.  Something to squash
these barbs and with make them zeroes or invisible would be
more representative and a lot less noisy.

Thanks!

Dan Leins
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