Wind Direction Graph

I am not sure if this option exists, but is it possible to turn off wind direction plotting when wind speed is 0? Just trying to clean up the graph some and the direction is irrelevant when there is not wind.

sorry, there is no option to do that (and there is no way to change the colour (so not visible for example) or to hide, a partial part of the wind direction plot for a certain time interval
just think of it showing what the last wind direction was