1     1
    AMPS    13     4    25     1     1
     1 BACKWARD DIVERGE 
  2013     4    26    12  -77.440  163.750   108.0
     1 PRESSURE
     1     1    13     4    26    12     0    36     0.0  -77.440  163.750    108.0      NaN
     1     1    13     4    26    11     0    35    -1.0  -77.435  163.682     76.0      NaN
     1     1    13     4    26    10     0    34    -2.0  -77.460  163.654     87.5      NaN
     1     1    13     4    26     9     0    33    -3.0  -77.513  163.670    205.4      NaN
     1     1    13     4    26     8     0    32    -4.0  -77.580  163.724    425.8    925.0
     1     1    13     4    26     7     0    31    -5.0  -77.631  163.833    346.2    943.5
     1     1    13     4    26     6     0    30    -6.0  -77.667  163.988    313.6    944.8
     1     1    13     4    26     5     0    29    -7.0  -77.701  164.211    155.2      NaN
     1     1    13     4    26     4     0    28    -8.0  -77.745  164.357    109.1      NaN