EXTRA-TROPICAL  STORM  SURGE  2.3
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#Popokamute, AK : 02/01/2023 14:20:47 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/30 18Z,   0.90,  -3.38,  99.90,  -2.48,   0.00,
01/30 19Z,   0.90,  -2.30,  99.90,  -1.40,   0.00,  (max)
01/30 20Z,   0.90,  -2.78,  99.90,  -1.88,   0.00,
01/30 21Z,   0.90,  -4.41,  99.90,  -3.51,   0.00,
01/30 22Z,   0.90,  -6.48,  99.90,  -5.58,   0.00,
01/30 23Z,   0.90,  -8.44,  99.90,  -7.54,   0.00,
01/31 00Z,   0.70,  -9.86,  99.90,  -9.16,   0.00,
01/31 01Z,   0.70, -10.59,  99.90,  -9.89,   0.00,
01/31 02Z,   0.60, -10.62,  99.90, -10.02,   0.00,  (min)
01/31 03Z,   0.60,  -9.81,  99.90,  -9.21,   0.00,
01/31 04Z,   0.60,  -7.98,  99.90,  -7.38,   0.00,
01/31 05Z,   0.50,  -5.57,  99.90,  -5.07,   0.00,
01/31 06Z,   0.30,  -3.79,  99.90,  -3.49,   0.00,
01/31 07Z,   0.30,  -3.58,  99.90,  -3.28,   0.00,  (max)
01/31 08Z,   0.30,  -4.69,  99.90,  -4.39,   0.00,
01/31 09Z,   0.30,  -6.53,  99.90,  -6.23,   0.00,
01/31 10Z,   0.30,  -8.54,  99.90,  -8.24,   0.00,
01/31 11Z,   0.30, -10.29,  99.90,  -9.99,   0.00,
01/31 12Z,   0.00, -11.50,  99.90, -11.50,   0.00,
01/31 13Z,   0.00, -12.12,  99.90, -12.12,   0.00,
01/31 14Z,   0.00, -12.23,  99.90, -12.23,   0.00,  (min)
01/31 15Z,   0.00, -11.82,  99.90, -11.82,   0.00,
01/31 16Z,   0.00, -10.59,  99.90, -10.59,   0.00,
01/31 17Z,   0.00,  -8.36,  99.90,  -8.36,   0.00,
01/31 18Z,  -0.10,  -5.53,  99.90,  -5.63,   0.00,
01/31 19Z,  -0.20,  -3.18,  99.90,  -3.38,   0.00,
01/31 20Z,  -0.20,  -2.19,  99.90,  -2.39,   0.00,  (max)
01/31 21Z,  -0.20,  -2.70,  99.90,  -2.90,   0.00,
01/31 22Z,  -0.20,  -4.32,  99.90,  -4.52,   0.00,
01/31 23Z,  -0.30,  -6.38,  99.90,  -6.68,   0.00,
02/01 00Z,  -0.30,  -8.32,  99.90,  -8.62,   0.00,
02/01 01Z,  -0.30,  -9.73,  99.90, -10.03,   0.00,
02/01 02Z,  -0.30, -10.44,  99.90, -10.74,   0.00,
02/01 03Z,  -0.30, -10.46,  99.90, -10.76,   0.00,  (min)
02/01 04Z,  -0.20,  -9.61,  99.90,  -9.81,   0.00,
02/01 05Z,  -0.20,  -7.80,  99.90,  -8.00,   0.00,
02/01 06Z,  -0.20,  -5.58,  99.90,  -5.78,   0.00,
02/01 07Z,  -0.10,  -4.12,  99.90,  -4.22,   0.00,  (max)
02/01 08Z,  -0.10,  -4.20,  99.90,  -4.30,   0.00,
02/01 09Z,  -0.10,  -5.39,  99.90,  -5.49,   0.00,
02/01 10Z,   0.00,  -7.15,  99.90,  -7.15,   0.00,
02/01 11Z,   0.00,  -9.00,  99.90,  -9.00,   0.00,
02/01 12Z,   0.00, -10.57,  99.90, -10.57,   0.00,
02/01 13Z,   0.00, -11.62,  99.90, -11.62,   0.00,
02/01 14Z,   0.00, -12.11,  99.90, -12.11,   0.00,
02/01 15Z,   0.00, -12.13,  99.90, -12.13,   0.00,  (min)
02/01 16Z,   0.00, -11.61,  99.90, -11.61,   0.00,
02/01 17Z,   0.00, -10.25,  99.90, -10.25,   0.00,
02/01 18Z,   0.00,  -7.94,  99.90,  -7.94,   0.00,
02/01 19Z,   0.10,  -5.17,  99.90,  -5.07,   0.00,
02/01 20Z,   0.10,  -3.00,  99.90,  -2.90,   0.00,
02/01 21Z,   0.10,  -2.17,  99.90,  -2.07,   0.00,  (max)
02/01 22Z,   0.20,  -2.77,  99.90,  -2.57,   0.00,
02/01 23Z,   0.20,  -4.40,  99.90,  -4.20,   0.00,
02/02 00Z,   0.20,  -6.44,  99.90,  -6.24,   0.00,
02/02 01Z,   0.30,  -8.34,  99.90,  -8.04,   0.00,
02/02 02Z,   0.30,  -9.69,  99.90,  -9.39,   0.00,
02/02 03Z,   0.40, -10.35,  99.90,  -9.95,   0.00,  (min)
02/02 04Z,   0.40, -10.32,  99.90,  -9.92,   0.00,
02/02 05Z,   0.40,  -9.41,  99.90,  -9.01,   0.00,
02/02 06Z,   0.40,  -7.61,  99.90,  -7.21,   0.00,
02/02 07Z,   0.50,  -5.56,  99.90,  -5.06,   0.00,
02/02 08Z,   0.50,  -4.46,  99.90,  -3.96,   0.00,  (max)
02/02 09Z,   0.60,  -4.78,  99.90,  -4.18,   0.00,
02/02 10Z,   0.60,  -6.02,  99.90,  -5.42,   0.00,
02/02 11Z,   0.70,  -7.71,  99.90,  -7.01,   0.00,
02/02 12Z,   0.70,  -9.40,  99.90,  -8.70,   0.00,
02/02 13Z,   0.70, -10.78,  99.90, -10.08,   0.00,
02/02 14Z,   0.70, -11.67,  99.90, -10.97,   0.00,
02/02 15Z,   0.70, -12.05,  99.90, -11.35,   0.00,  (min)
02/02 16Z,   0.70, -11.98,  99.90, -11.28,   0.00,
02/02 17Z,   0.70, -11.33,  99.90, -10.63,   0.00,
02/02 18Z,   0.80,  -9.81,  99.90,  -9.01,   0.00,
02/02 19Z,   0.80,  -7.44,  99.90,  -6.64,   0.00,
02/02 20Z,   0.90,  -4.77,  99.90,  -3.87,   0.00,
02/02 21Z,   0.90,  -2.84,  99.90,  -1.94,   0.00,
02/02 22Z,   0.90,  -2.23,  99.90,  -1.33,   0.00,  (max)
02/02 23Z,   1.00,  -2.98,  99.90,  -1.98,   0.00,
02/03 00Z,   1.00,  -4.65,  99.90,  -3.65,   0.00,
02/03 01Z,   1.00,  -6.65,  99.90,  -5.65,   0.00,
02/03 02Z,   1.10,  -8.47,  99.90,  -7.37,   0.00,
02/03 03Z,   1.10,  -9.73,  99.90,  -8.63,   0.00,
02/03 04Z,   1.20, -10.31,  99.90,  -9.11,   0.00,  (min)
02/03 05Z,   1.20, -10.20,  99.90,  -9.00,   0.00,
02/03 06Z,   1.30,  -9.18,  99.90,  -7.88,   0.00,
02/03 07Z,   1.30,  -7.37,  99.90,  -6.07,   0.00,
02/03 08Z,   1.40,  -5.53,  99.90,  -4.13,   0.00,
02/03 09Z,   1.40,  -4.79,  99.90,  -3.39,   0.00,  (max)
02/03 10Z,   1.40,  -5.31,  99.90,  -3.91,   0.00,
02/03 11Z,   1.40,  -6.60,  99.90,  -5.20,   0.00,
02/03 12Z,   1.30,  -8.20,  99.90,  -6.90,   0.00,
02/03 13Z,   1.20,  -9.74,  99.90,  -8.54,   0.00,
02/03 14Z,   1.20, -10.95,  99.90,  -9.75,   0.00,
02/03 15Z,   1.10, -11.69,  99.90, -10.59,   0.00,
02/03 16Z,   1.10, -11.96,  99.90, -10.86,   0.00,  (min)
02/03 17Z,   1.10, -11.78,  99.90, -10.68,   0.00,
02/03 18Z,   1.10, -10.97,  99.90,  -9.87,   0.00,
02/03 19Z,   1.10,  -9.29,  99.90,  -8.19,   0.00,
02/03 20Z,   1.10,  -6.85,  99.90,  -5.75,   0.00,
02/03 21Z,   1.10,  -4.34,  99.90,  -3.24,   0.00,
02/03 22Z,   1.10,  -2.70,  99.90,  -1.60,   0.00,
02/03 23Z,   1.10,  -2.38,  99.90,  -1.28,   0.00,  (max)
02/04 00Z,   1.10,  -3.31,  99.90,  -2.21,   0.00,
02/04 01Z,   1.10,  -5.02,  99.90,  -3.92,   0.00,
02/04 02Z,   1.10,  -6.97,  99.90,  -5.87,   0.00,
02/04 03Z,   1.10,  -8.69,  99.90,  -7.59,   0.00,
02/04 04Z,   1.10,  -9.83,  99.90,  -8.73,   0.00,
02/04 05Z,   1.10, -10.30,  99.90,  -9.20,   0.00,  (min)
02/04 06Z,   1.10, -10.06,  99.90,  -8.96,   0.00,
02/04 07Z,   1.10,  -8.91,  99.90,  -7.81,   0.00,
02/04 08Z,   1.10,  -7.10,  99.90,  -6.00,   0.00,
02/04 09Z,   1.10,  -5.50,  99.90,  -4.40,   0.00,
02/04 10Z,   1.10,  -5.12,  99.90,  -4.02,   0.00,  (max)
02/04 11Z,   1.10,  -5.81,  99.90,  -4.71,   0.00,
02/04 12Z,   1.10,  -7.12,  99.90,  -6.02,   0.00,
02/04 13Z,   1.10,  -8.63,  99.90,  -7.53,   0.00,
02/04 14Z,   1.00, -10.02,  99.90,  -9.02,   0.00,
02/04 15Z,   1.00, -11.08,  99.90, -10.08,   0.00,
02/04 16Z,   1.00, -11.68,  99.90, -10.68,   0.00,
02/04 17Z,   1.00, -11.84,  99.90, -10.84,   0.00,  (min)
02/04 18Z,   0.90, -11.53,  99.90, -10.63,   0.00,
02/04 19Z,   0.90, -10.52,  99.90,  -9.62,   0.00,
02/04 20Z,   0.90,  -8.65,  99.90,  -7.75,   0.00,
02/04 21Z,   1.00,  -6.19,  99.90,  -5.19,   0.00,
02/04 22Z,   0.90,  -3.89,  99.90,  -2.99,   0.00,
02/04 23Z,   0.90,  -2.62,  99.90,  -1.72,   0.00,  (max)
02/05 00Z,   0.80,  -2.63,  99.90,  -1.83,   0.00,
02/05 01Z,   0.80,  -3.77,  99.90,  -2.97,   0.00,
02/05 02Z,   0.80,  -5.52,  99.90,  -4.72,   0.00,
02/05 03Z,   0.90,  -7.40,  99.90,  -6.50,   0.00,
02/05 04Z,   1.00,  -8.98,  99.90,  -7.98,   0.00,
02/05 05Z,   1.00,  -9.97,  99.90,  -8.97,   0.00,
02/05 06Z,   1.20, -10.31,  99.90,  -9.11,   0.00,