/home/critechuser/cycloneSurge/Python/vtcalc.py:19: FutureWarning: comparison to `None` will result in an elementwise object comparison in the future.
  if lon == None :

****************
[   0.   12.   24.   36.   48.   72.   96.  120.]
[ 92.9  91.5  90.2  88.8  87.3  84.2  79.1  74. ]

****************