Glen Romine
EF5
For what it's worth - the Bunker's technique really isn't that complicated either from a graphical perspective. If you have a hodograph that includes height markers - you just draw a line from the mean 0-500 m wind to the 5.5-6km wind, then find the middle of the hodograph - and draw a line perpendicular to the first line you drew that crosses through the point on the middle of the hodograph. Finally, moving 7.5 m/s to the left or right of this crossing point along the second line gives the left or right mover estimated cell motion - with the point in the middle for the non-rotating cell motion. Of course - you rarely have a hodograph for the location and time you expect a storm to develop - but you can look at a forecast sounding for the target location and then apply this technique to estimate what cell motions to expect. For the graphically minded, I've included a sample below.
So here, a right mover (labelled R) would be expected to track NNE at ~18 m/s.
Glen
![bunkers.jpg](/proxy.php?image=http%3A%2F%2Fwww.atmos.uiuc.edu%2F%7Eromine%2Fimages%2Fbunkers.jpg&hash=d00ccbfb46c2f49d2913d94be7875082)
So here, a right mover (labelled R) would be expected to track NNE at ~18 m/s.
Glen