I could be wrong, but no, I do not believe this is what you are seeing. The actual vorticity of the baja low is much further south and west than the area you are depicting. However, I do believe this is the weak vorticity that the N/S energy is absorbing that has caused it to move further west and south as was depicted in the model runs earlier in the day, thus leading to higher QPF estimates to the north and west of the original precipitation shield in the models a day ago.
Phil882 had a great post earlier about how these vorticity steamfunction winds worked here http://www.americanwx.com/bb/index.php/topic/42584-128-130-storm-thread-ii/page-44#entry2690224
So looking at this map:
You can see the vort max over baja and another, I believe, over Colorado.
Now I'm not saying it will or won't happen, but I don't believe that's what is happening currently on the WV.