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PLEASE NOTE that zero is now at Mean Lower Low Water (MLLW).
This is the old default datum.
#Portsmouth (Money Point), VA : 08/18/2017 21:19:44 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/17 06Z,   0.00,   1.22,   1.61,  99.90,   0.39,
08/17 07Z,   0.00,   1.87,   2.27,  99.90,   0.40,
08/17 08Z,   0.00,   2.49,   2.89,  99.90,   0.40,
08/17 09Z,   0.00,   2.90,   3.26,  99.90,   0.36,
08/17 10Z,   0.00,   2.96,   3.32,  99.90,   0.36,  (max)
08/17 11Z,   0.00,   2.68,   3.01,  99.90,   0.33,
08/17 12Z,   0.00,   2.18,   2.42,  99.90,   0.24,
08/17 13Z,   0.00,   1.55,   1.70,  99.90,   0.15,
08/17 14Z,   0.00,   0.91,   1.08,  99.90,   0.17,
08/17 15Z,   0.00,   0.42,   0.62,  99.90,   0.20,
08/17 16Z,   0.00,   0.28,   0.56,  99.90,   0.28,  (min)
08/17 17Z,   0.00,   0.57,   1.01,  99.90,   0.44,
08/17 18Z,   0.00,   1.18,   1.64,  99.90,   0.46,
08/17 19Z,   0.00,   1.94,   2.40,  99.90,   0.46,
08/17 20Z,   0.00,   2.70,   3.16,  99.90,   0.46,
08/17 21Z,   0.00,   3.31,   3.67,  99.90,   0.36,
08/17 22Z,   0.00,   3.59,   3.84,  99.90,   0.25,  (max)
08/17 23Z,   0.00,   3.50,   3.65,  99.90,   0.15,
08/18 00Z,   0.00,   3.10,   3.25,  99.90,   0.15,
08/18 01Z,   0.00,   2.49,   2.66,  99.90,   0.17,
08/18 02Z,   0.00,   1.75,   1.92,  99.90,   0.17,
08/18 03Z,  -0.10,   1.01,   1.11,  99.90,   0.20,
08/18 04Z,  -0.10,   0.48,   0.61,  99.90,   0.23,
08/18 05Z,  -0.10,   0.35,   0.55,  99.90,   0.30,  (min)
08/18 06Z,  -0.10,   0.60,   0.95,  99.90,   0.45,
08/18 07Z,  -0.10,   1.13,   1.47,  99.90,   0.44,
08/18 08Z,  -0.10,   1.82,   2.13,  99.90,   0.41,
08/18 09Z,  -0.10,   2.50,   2.75,  99.90,   0.35,
08/18 10Z,  -0.10,   2.97,   3.21,  99.90,   0.34,
08/18 11Z,  -0.10,   3.08,   3.30,  99.90,   0.32,  (max)
08/18 12Z,  -0.10,   2.82,   2.99,  99.90,   0.27,
08/18 13Z,  -0.10,   2.31,   2.44,  99.90,   0.23,
08/18 14Z,  -0.10,   1.63,   1.79,  99.90,   0.26,
08/18 15Z,  -0.10,   0.92,   1.14,  99.90,   0.32,
08/18 16Z,  -0.10,   0.38,   0.60,  99.90,   0.32,
08/18 17Z,  -0.10,   0.22,   0.41,  99.90,   0.29,  (min)
08/18 18Z,  -0.10,   0.49,   0.77,  99.90,   0.38,
08/18 19Z,  -0.10,   1.08,   1.52,  99.90,   0.54,
08/18 20Z,  -0.20,   1.86,   2.32,  99.90,   0.66,
08/18 21Z,  -0.20,   2.68,   3.18,  99.90,   0.70,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/18 22Z,  -0.20,   3.35,  99.90,   3.82,   0.67,
08/18 23Z,  -0.20,   3.68,  99.90,   4.13,   0.65,  (max)
08/19 00Z,  -0.30,   3.60,  99.90,   3.92,   0.62,
08/19 01Z,  -0.30,   3.19,  99.90,   3.48,   0.60,
08/19 02Z,  -0.30,   2.53,  99.90,   2.80,   0.57,
08/19 03Z,  -0.30,   1.72,  99.90,   1.97,   0.55,
08/19 04Z,  -0.30,   0.92,  99.90,   1.14,   0.52,
08/19 05Z,  -0.40,   0.37,  99.90,   0.47,   0.49,
08/19 06Z,  -0.40,   0.23,  99.90,   0.30,   0.47,  (min)
08/19 07Z,  -0.40,   0.50,  99.90,   0.54,   0.44,
08/19 08Z,  -0.40,   1.07,  99.90,   1.09,   0.42,
08/19 09Z,  -0.40,   1.83,  99.90,   1.82,   0.39,
08/19 10Z,  -0.40,   2.59,  99.90,   2.58,   0.39,
08/19 11Z,  -0.40,   3.11,  99.90,   3.11,   0.39,
08/19 12Z,  -0.40,   3.24,  99.90,   3.23,   0.39,  (max)
08/19 13Z,  -0.40,   2.97,  99.90,   2.96,   0.39,
08/19 14Z,  -0.30,   2.41,  99.90,   2.50,   0.39,
08/19 15Z,  -0.30,   1.67,  99.90,   1.76,   0.39,
08/19 16Z,  -0.20,   0.90,  99.90,   1.09,   0.39,
08/19 17Z,  -0.20,   0.32,  99.90,   0.51,   0.39,
08/19 18Z,  -0.20,   0.14,  99.90,   0.33,   0.39,  (min)
08/19 19Z,  -0.20,   0.40,  99.90,   0.59,   0.39,
08/19 20Z,  -0.20,   1.01,  99.90,   1.20,   0.39,
08/19 21Z,  -0.30,   1.83,  99.90,   1.92,   0.39,
08/19 22Z,  -0.30,   2.70,  99.90,   2.80,   0.39,
08/19 23Z,  -0.30,   3.42,  99.90,   3.51,   0.39,
08/20 00Z,  -0.30,   3.76,  99.90,   3.85,   0.39,  (max)
08/20 01Z,  -0.30,   3.67,  99.90,   3.76,   0.39,
08/20 02Z,  -0.20,   3.21,  99.90,   3.40,   0.39,
08/20 03Z,  -0.20,   2.50,  99.90,   2.69,   0.39,
08/20 04Z,  -0.20,   1.63,  99.90,   1.82,   0.39,
08/20 05Z,  -0.20,   0.79,  99.90,   0.99,   0.39,
08/20 06Z,  -0.20,   0.24,  99.90,   0.44,   0.39,
08/20 07Z,  -0.20,   0.13,  99.90,   0.32,   0.39,  (min)
08/20 08Z,  -0.30,   0.44,  99.90,   0.53,   0.39,
08/20 09Z,  -0.30,   1.08,  99.90,   1.17,   0.39,
08/20 10Z,  -0.30,   1.92,  99.90,   2.01,   0.39,
08/20 11Z,  -0.30,   2.74,  99.90,   2.83,   0.39,
08/20 12Z,  -0.30,   3.29,  99.90,   3.38,   0.39,
08/20 13Z,  -0.30,   3.39,  99.90,   3.49,   0.39,  (max)
08/20 14Z,  -0.20,   3.08,  99.90,   3.28,   0.39,
08/20 15Z,  -0.20,   2.47,  99.90,   2.66,   0.39,
08/20 16Z,  -0.20,   1.67,  99.90,   1.86,   0.39,
08/20 17Z,  -0.20,   0.84,  99.90,   1.03,   0.39,
08/20 18Z,  -0.20,   0.24,  99.90,   0.43,   0.39,
08/20 19Z,  -0.20,   0.06,  99.90,   0.25,   0.39,  (min)
08/20 20Z,  -0.20,   0.34,  99.90,   0.53,   0.39,
08/20 21Z,  -0.20,   0.99,  99.90,   1.18,   0.39,
08/20 22Z,  -0.20,   1.86,  99.90,   2.05,   0.39,
08/20 23Z,  -0.20,   2.78,  99.90,   2.97,   0.39,
08/21 00Z,  -0.20,   3.50,  99.90,   3.69,   0.39,
08/21 01Z,  -0.20,   3.81,  99.90,   4.00,   0.39,  (max)
08/21 02Z,  -0.20,   3.67,  99.90,   3.86,   0.39,
08/21 03Z,  -0.10,   3.16,  99.90,   3.45,   0.39,
08/21 04Z,  -0.10,   2.39,  99.90,   2.68,   0.39,
08/21 05Z,  -0.10,   1.47,  99.90,   1.77,   0.39,
08/21 06Z,  -0.10,   0.64,  99.90,   0.93,   0.39,
08/21 07Z,  -0.10,   0.12,  99.90,   0.41,   0.39,
08/21 08Z,  -0.20,   0.07,  99.90,   0.26,   0.39,  (min)
08/21 09Z,  -0.20,   0.46,  99.90,   0.65,   0.39,
08/21 10Z,  -0.20,   1.18,  99.90,   1.37,   0.39,
08/21 11Z,  -0.20,   2.08,  99.90,   2.27,   0.39,
08/21 12Z,  -0.20,   2.93,  99.90,   3.12,   0.39,
08/21 13Z,  -0.20,   3.45,  99.90,   3.64,   0.39,
08/21 14Z,  -0.10,   3.50,  99.90,   3.79,   0.39,  (max)
08/21 15Z,  -0.10,   3.14,  99.90,   3.43,   0.39,
08/21 16Z,  -0.10,   2.47,  99.90,   2.76,   0.39,
08/21 17Z,  -0.10,   1.61,  99.90,   1.90,   0.39,
08/21 18Z,  -0.10,   0.76,  99.90,   1.05,   0.39,
08/21 19Z,  -0.10,   0.17,  99.90,   0.46,   0.39,
08/21 20Z,  -0.10,   0.03,  99.90,   0.32,   0.39,  (min)
08/21 21Z,  -0.20,   0.36,  99.90,   0.55,   0.39,
08/21 22Z,  -0.20,   1.05,  99.90,   1.24,   0.39,
08/21 23Z,  -0.20,   1.96,  99.90,   2.15,   0.39,
08/22 00Z,  -0.20,   2.88,  99.90,   3.07,   0.39,
08/22 01Z,  -0.20,   3.56,  99.90,   3.75,   0.39,
08/22 02Z,  -0.20,   3.80,  99.90,   3.99,   0.39,  (max)
08/22 03Z,  -0.20,   3.59,  99.90,   3.78,   0.39,
08/22 04Z,  -0.20,   3.02,  99.90,   3.21,   0.39,
08/22 05Z,  -0.20,   2.20,  99.90,   2.39,   0.39,
08/22 06Z,  -0.20,   1.28,  99.90,   1.47,   0.39,
08/22 07Z,  -0.20,   0.47,  99.90,   0.66,   0.39,
08/22 08Z,  -0.30,   0.04,  99.90,   0.13,   0.39,  (min)
08/22 09Z,  -0.30,   0.09,  99.90,   0.18,   0.39,
08/22 10Z,  -0.30,   0.57,  99.90,   0.66,   0.39,
08/22 11Z,  -0.30,   1.36,  99.90,   1.45,   0.39,
08/22 12Z,  -0.30,   2.29,  99.90,   2.38,   0.39,
08/22 13Z,  99.90,   3.11,  99.90,  99.90,   0.39,
08/22 14Z,  99.90,   3.56,  99.90,  99.90,   0.39,
08/22 15Z,  99.90,   3.54,  99.90,  99.90,   0.39,
08/22 16Z,  99.90,   3.12,  99.90,  99.90,   0.39,
08/22 17Z,  99.90,   2.40,  99.90,  99.90,   0.39,
08/22 18Z,  99.90,   1.51,  99.90,  99.90,   0.39,

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