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He could probably speak to the challenges involved.  A bank of man-made air movers trying to defeat the movement of sea air between high pressure and low pressure zones :- )
In fact, would like to hear Matt's technical explanation of what's going on here.  
We know, pretty much, that there's an updraft and/or air moving from LF to RF.  We know that there's a major ocean on the 3B side of Safeco, less than a mile away, and rising terrain to the 1B side of Safeco.
We know the ball hangs in the air due to air movement.  We know that in colder weather with the roof open, the ball hangs more, and Geoff Baker tells us that he consistently feels a 10 MPH wind in his face, sitting high behind home plate in April and May.
We know that in warmer weather it's much less of a problem (for example, it was over 70 degrees when Posey went upper tank yesterday).
As to the technical description of the likely air movement... whatcha got Matt?