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#Port Heiden, AK : 12/11/2023 13:21:57 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/09 18Z,   1.10,   8.75,  99.90,   9.85,   0.00,
12/09 19Z,   1.10,   9.85,  99.90,  10.95,   0.00,
12/09 20Z,   1.00,  10.29,  99.90,  11.29,   0.00,
12/09 21Z,   1.00,  10.37,  99.90,  11.37,   0.00,  (max)
12/09 22Z,   0.90,  10.47,  99.90,  11.37,   0.00,
12/09 23Z,   0.80,  10.44,  99.90,  11.24,   0.00,
12/10 00Z,   0.70,  10.02,  99.90,  10.72,   0.00,
12/10 01Z,   0.70,   9.16,  99.90,   9.86,   0.00,
12/10 02Z,   0.70,   8.22,  99.90,   8.92,   0.00,
12/10 03Z,   0.60,   7.95,  99.90,   8.55,   0.00,  (min)
12/10 04Z,   0.70,   8.60,  99.90,   9.30,   0.00,
12/10 05Z,   0.70,   9.46,  99.90,  10.16,   0.00,
12/10 06Z,   0.60,   9.80,  99.90,  10.40,   0.00,  (max)
12/10 07Z,   0.60,   9.70,  99.90,  10.30,   0.00,
12/10 08Z,   0.60,   9.60,  99.90,  10.20,   0.00,
12/10 09Z,   0.50,   9.42,  99.90,   9.92,   0.00,
12/10 10Z,   0.30,   8.81,  99.90,   9.11,   0.00,
12/10 11Z,   0.20,   7.55,  99.90,   7.75,   0.00,
12/10 12Z,   0.20,   5.66,  99.90,   5.86,   0.00,
12/10 13Z,   0.10,   3.38,  99.90,   3.48,   0.00,
12/10 14Z,   0.00,   1.34,  99.90,   1.34,   0.00,
12/10 15Z,   0.00,   0.58,  99.90,   0.58,   0.00,  (min)
12/10 16Z,   0.00,   1.85,  99.90,   1.85,   0.00,
12/10 17Z,  -0.10,   4.62,  99.90,   4.52,   0.00,
12/10 18Z,   0.00,   7.48,  99.90,   7.48,   0.00,
12/10 19Z,   0.00,   9.52,  99.90,   9.52,   0.00,
12/10 20Z,   0.00,  10.61,  99.90,  10.61,   0.00,
12/10 21Z,  -0.10,  11.02,  99.90,  10.92,   0.00,  (max)
12/10 22Z,  -0.30,  11.09,  99.90,  10.79,   0.00,  (min)
12/10 23Z,  -0.30,  11.19,  99.90,  10.89,   0.00,  (max)
12/11 00Z,  -0.40,  11.10,  99.90,  10.70,   0.00,
12/11 01Z,  -0.40,  10.58,  99.90,  10.18,   0.00,
12/11 02Z,  -0.40,   9.62,  99.90,   9.22,   0.00,
12/11 03Z,  -0.50,   8.66,  99.90,   8.16,   0.00,
12/11 04Z,  -0.40,   8.44,  99.90,   8.04,   0.00,  (min)
12/11 05Z,  -0.30,   8.98,  99.90,   8.68,   0.00,
12/11 06Z,  -0.10,   9.50,  99.90,   9.40,   0.00,
12/11 07Z,   0.00,   9.48,  99.90,   9.48,   0.00,  (max)
12/11 08Z,   0.20,   9.23,  99.90,   9.43,   0.00,
12/11 09Z,   0.20,   9.15,  99.90,   9.35,   0.00,
12/11 10Z,   0.30,   8.82,  99.90,   9.12,   0.00,
12/11 11Z,   0.50,   7.94,  99.90,   8.44,   0.00,
12/11 12Z,   0.60,   6.37,  99.90,   6.97,   0.00,
12/11 13Z,   0.70,   4.23,  99.90,   4.93,   0.00,
12/11 14Z,   0.80,   1.91,  99.90,   2.71,   0.00,
12/11 15Z,   0.90,   0.16,  99.90,   1.06,   0.00,
12/11 16Z,   1.00,   0.05,  99.90,   1.05,   0.00,  (min)
12/11 17Z,   1.10,   2.07,  99.90,   3.17,   0.00,
12/11 18Z,   1.20,   5.31,  99.90,   6.51,   0.00,
12/11 19Z,   1.20,   8.32,  99.90,   9.52,   0.00,
12/11 20Z,   1.20,  10.34,  99.90,  11.54,   0.00,
12/11 21Z,   1.20,  11.37,  99.90,  12.57,   0.00,
12/11 22Z,   1.20,  11.73,  99.90,  12.93,   0.00,  (max)
12/11 23Z,   1.10,  11.79,  99.90,  12.89,   0.00,
12/12 00Z,   1.00,  11.86,  99.90,  12.86,   0.00,
12/12 01Z,   0.90,  11.66,  99.90,  12.56,   0.00,
12/12 02Z,   0.80,  10.96,  99.90,  11.76,   0.00,
12/12 03Z,   0.70,   9.85,  99.90,  10.55,   0.00,
12/12 04Z,   0.70,   8.85,  99.90,   9.55,   0.00,
12/12 05Z,   0.60,   8.69,  99.90,   9.29,   0.00,  (min)
12/12 06Z,   0.60,   9.14,  99.90,   9.74,   0.00,
12/12 07Z,   0.50,   9.38,  99.90,   9.88,   0.00,  (max)
12/12 08Z,   0.40,   9.13,  99.90,   9.53,   0.00,
12/12 09Z,   0.20,   8.86,  99.90,   9.06,   0.00,
12/12 10Z,   0.10,   8.75,  99.90,   8.85,   0.00,
12/12 11Z,   0.00,   8.25,  99.90,   8.25,   0.00,
12/12 12Z,   0.00,   7.10,  99.90,   7.10,   0.00,
12/12 13Z,   0.00,   5.23,  99.90,   5.23,   0.00,
12/12 14Z,   0.00,   2.90,  99.90,   2.90,   0.00,
12/12 15Z,   0.10,   0.61,  99.90,   0.71,   0.00,
12/12 16Z,   0.30,  -0.76,  99.90,  -0.46,   0.00,  (min)
12/12 17Z,   0.50,  -0.18,  99.90,   0.32,   0.00,
12/12 18Z,   0.60,   2.51,  99.90,   3.11,   0.00,
12/12 19Z,   0.60,   6.12,  99.90,   6.72,   0.00,
12/12 20Z,   0.60,   9.19,  99.90,   9.79,   0.00,
12/12 21Z,   0.50,  11.14,  99.90,  11.64,   0.00,
12/12 22Z,   0.40,  12.08,  99.90,  12.48,   0.00,
12/12 23Z,   0.30,  12.38,  99.90,  12.68,   0.00,  (max)
12/13 00Z,   0.20,  12.42,  99.90,  12.62,   0.00,
12/13 01Z,   0.10,  12.42,  99.90,  12.52,   0.00,
12/13 02Z,   0.00,  12.04,  99.90,  12.04,   0.00,
12/13 03Z,   0.00,  11.12,  99.90,  11.12,   0.00,
12/13 04Z,   0.00,   9.83,  99.90,   9.83,   0.00,
12/13 05Z,   0.00,   8.81,  99.90,   8.81,   0.00,  (min)
12/13 06Z,   0.10,   8.73,  99.90,   8.83,   0.00,
12/13 07Z,   0.30,   9.13,  99.90,   9.43,   0.00,
12/13 08Z,   0.30,   9.19,  99.90,   9.49,   0.00,  (max)
12/13 09Z,   0.30,   8.84,  99.90,   9.14,   0.00,
12/13 10Z,   0.30,   8.64,  99.90,   8.94,   0.00,
12/13 11Z,   0.30,   8.45,  99.90,   8.75,   0.00,
12/13 12Z,   0.40,   7.75,  99.90,   8.15,   0.00,
12/13 13Z,   0.60,   6.33,  99.90,   6.93,   0.00,
12/13 14Z,   0.80,   4.21,  99.90,   5.01,   0.00,
12/13 15Z,   1.00,   1.73,  99.90,   2.73,   0.00,
12/13 16Z,   1.20,  -0.47,  99.90,   0.73,   0.00,
12/13 17Z,   1.30,  -1.41,  99.90,  -0.11,   0.00,  (min)
12/13 18Z,   1.30,  -0.15,  99.90,   1.15,   0.00,
12/13 19Z,   1.30,   3.11,  99.90,   4.41,   0.00,
12/13 20Z,   1.10,   6.97,  99.90,   8.07,   0.00,
12/13 21Z,   1.00,  10.03,  99.90,  11.03,   0.00,
12/13 22Z,   0.80,  11.87,  99.90,  12.67,   0.00,
12/13 23Z,   0.50,  12.71,  99.90,  13.21,   0.00,
12/14 00Z,   0.30,  12.92,  99.90,  13.22,   0.00,  (max)
12/14 01Z,   0.00,  12.96,  99.90,  12.96,   0.00,
12/14 02Z,   0.00,  12.83,  99.90,  12.83,   0.00,
12/14 03Z,   0.00,  12.21,  99.90,  12.21,   0.00,
12/14 04Z,   0.00,  11.02,  99.90,  11.02,   0.00,
12/14 05Z,   0.00,   9.54,  99.90,   9.54,   0.00,
12/14 06Z,   0.00,   8.53,  99.90,   8.53,   0.00,
12/14 07Z,  -0.20,   8.58,  99.90,   8.38,   0.00,  (min)
12/14 08Z,  -0.40,   9.01,  99.90,   8.61,   0.00,  (max)
12/14 09Z,  -0.50,   9.02,  99.90,   8.52,   0.00,
12/14 10Z,  -0.50,   8.68,  99.90,   8.18,   0.00,
12/14 11Z,  -0.50,   8.53,  99.90,   8.03,   0.00,
12/14 12Z,  -0.40,   8.24,  99.90,   7.84,   0.00,
12/14 13Z,  -0.40,   7.38,  99.90,   6.98,   0.00,
12/14 14Z,  -0.30,   5.72,  99.90,   5.42,   0.00,
12/14 15Z,  -0.20,   3.37,  99.90,   3.17,   0.00,
12/14 16Z,  -0.10,   0.79,  99.90,   0.69,   0.00,
12/14 17Z,   0.00,  -1.27,  99.90,  -1.27,   0.00,
12/14 18Z,   0.00,  -1.77,  99.90,  -1.77,   0.00,  (min)
12/14 19Z,   0.10,   0.09,  99.90,   0.19,   0.00,
12/14 20Z,   0.10,   3.82,  99.90,   3.92,   0.00,
12/14 21Z,   0.20,   7.82,  99.90,   8.02,   0.00,
12/14 22Z,   0.20,  10.81,  99.90,  11.01,   0.00,
12/14 23Z,   0.20,  12.51,  99.90,  12.71,   0.00,
12/15 00Z,   0.20,  13.23,  99.90,  13.43,   0.00,
12/15 01Z,   0.20,  13.36,  99.90,  13.56,   0.00,  (max)
12/15 02Z,   0.20,  13.35,  99.90,  13.55,   0.00,
12/15 03Z,   0.20,  13.03,  99.90,  13.23,   0.00,
12/15 04Z,   0.30,  12.12,  99.90,  12.42,   0.00,
12/15 05Z,   0.30,  10.62,  99.90,  10.92,   0.00,
12/15 06Z,   0.40,   8.96,  99.90,   9.36,   0.00,