Our intent was for participants to identify
diffluence and confluence through the spreading or converging of height contours and divergence and convergence through the horizontal speeding up or slowing down of winds.
Strong divergence and
diffluence near the upper-troposphere in the storm region can be attributed to the significant upward transport of mass and latent heat released during condensation.
However, upper level
diffluence and warm sea surface temperatures near 29 degrees are conducive for development," JTWC said.