Convergent or Divergent?
A
Directional Confluence
Speed Diffluence
This is an 850 hPa chart of winds and isotachs.  The analysis shows directional confluence on point “A”.  Simultaneously, the flow is speed diffluent on the same point as the winds accelerate downstream from this point.  The question to ask is:  “Is the flow convergent because of the directional confluence, or divergent due to the speed diffluence?”  Once again, proper evaluation will require objective analysis.