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PLEASE NOTE that zero is now at Mean Lower Low Water (MLLW).
This is the old default datum.
 
#Port Heiden, AK : 05/26/2013 07:23:46 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/24 12Z,  -0.20,  12.21,  99.90,  12.01,   0.00,  (max)
05/24 13Z,  -0.20,  11.23,  99.90,  11.03,   0.00,
05/24 14Z,  -0.20,   9.61,  99.90,   9.41,   0.00,
05/24 15Z,  -0.20,   7.73,  99.90,   7.53,   0.00,
05/24 16Z,  -0.20,   6.45,  99.90,   6.25,   0.00,  (min)
05/24 17Z,  -0.20,   6.72,  99.90,   6.52,   0.00,
05/24 18Z,  -0.20,   8.27,  99.90,   8.07,   0.00,
05/24 19Z,  -0.20,   9.74,  99.90,   9.54,   0.00,
05/24 20Z,  -0.20,  10.33,  99.90,  10.13,   0.00,
05/24 21Z,  -0.20,  10.38,  99.90,  10.18,   0.00,  (max)
05/24 22Z,  -0.20,  10.28,  99.90,  10.08,   0.00,
05/24 23Z,  -0.20,   9.63,  99.90,   9.43,   0.00,
05/25 00Z,  -0.20,   8.09,  99.90,   7.89,   0.00,
05/25 01Z,  -0.20,   5.56,  99.90,   5.36,   0.00,
05/25 02Z,  -0.20,   2.37,  99.90,   2.17,   0.00,
05/25 03Z,  -0.20,  -0.73,  99.90,  -0.93,   0.00,
05/25 04Z,  -0.20,  -2.62,  99.90,  -2.82,   0.00,  (min)
05/25 05Z,  -0.30,  -2.02,  99.90,  -2.32,   0.00,
05/25 06Z,  -0.20,   1.27,  99.90,   1.07,   0.00,
05/25 07Z,  -0.30,   5.78,  99.90,   5.48,   0.00,
05/25 08Z,  -0.30,   9.62,  99.90,   9.32,   0.00,
05/25 09Z,  -0.30,  11.98,  99.90,  11.68,   0.00,
05/25 10Z,  -0.20,  13.08,  99.90,  12.88,   0.00,
05/25 11Z,  -0.20,  13.36,  99.90,  13.16,   0.00,  (max)
05/25 12Z,  -0.20,  13.27,  99.90,  13.07,   0.00,
05/25 13Z,  -0.20,  12.79,  99.90,  12.59,   0.00,
05/25 14Z,  -0.20,  11.60,  99.90,  11.40,   0.00,
05/25 15Z,  -0.20,   9.70,  99.90,   9.50,   0.00,
05/25 16Z,  -0.20,   7.57,  99.90,   7.37,   0.00,
05/25 17Z,  -0.20,   6.20,  99.90,   6.00,   0.00,  (min)
05/25 18Z,  -0.20,   6.54,  99.90,   6.34,   0.00,
05/25 19Z,  -0.20,   8.19,  99.90,   7.99,   0.00,
05/25 20Z,  -0.20,   9.66,  99.90,   9.46,   0.00,
05/25 21Z,  -0.20,  10.23,  99.90,  10.03,   0.00,
05/25 22Z,  -0.20,  10.27,  99.90,  10.07,   0.00,  (max)
05/25 23Z,  -0.10,  10.14,  99.90,  10.04,   0.00,
05/26 00Z,   0.00,   9.37,  99.90,   9.37,   0.00,
05/26 01Z,   0.00,   7.62,  99.90,   7.62,   0.00,
05/26 02Z,   0.00,   4.85,  99.90,   4.85,   0.00,
05/26 03Z,   0.00,   1.46,  99.90,   1.46,   0.00,
05/26 04Z,  -0.10,  -1.72,  99.90,  -1.82,   0.00,
05/26 05Z,   0.00,  -3.43,  99.90,  -3.43,   0.00,  (min)
05/26 06Z,   0.00,  -2.37,  99.90,  -2.37,   0.00,
05/26 07Z,   0.00,   1.43,  99.90,   1.43,   0.00,
05/26 08Z,   0.10,   6.26,  99.90,   6.36,   0.00,
05/26 09Z,   0.10,  10.23,  99.90,  10.33,   0.00,
05/26 10Z,   0.10,  12.64,  99.90,  12.74,   0.00,
05/26 11Z,   0.00,  13.74,  99.90,  13.74,   0.00,
05/26 12Z,   0.00,  13.98,  99.90,  13.98,   0.00,  (max)
05/26 13Z,   0.00,  13.83,  99.90,  13.83,   0.00,
05/26 14Z,   0.00,  13.19,  99.90,  13.19,   0.00,
05/26 15Z,   0.00,  11.74,  99.90,  11.74,   0.00,
05/26 16Z,   0.00,   9.53,  99.90,   9.53,   0.00,
05/26 17Z,   0.00,   7.13,  99.90,   7.13,   0.00,
05/26 18Z,  -0.10,   5.68,  99.90,   5.58,   0.00,  (min)
05/26 19Z,  -0.10,   6.14,  99.90,   6.04,   0.00,
05/26 20Z,  -0.10,   7.94,  99.90,   7.84,   0.00,
05/26 21Z,  -0.20,   9.51,  99.90,   9.31,   0.00,
05/26 22Z,  -0.20,  10.14,  99.90,   9.94,   0.00,
05/26 23Z,  -0.20,  10.22,  99.90,  10.02,   0.00,  (max)
05/27 00Z,  -0.20,  10.07,  99.90,   9.87,   0.00,
05/27 01Z,  -0.10,   9.23,  99.90,   9.13,   0.00,
05/27 02Z,  -0.10,   7.38,  99.90,   7.28,   0.00,
05/27 03Z,  -0.10,   4.48,  99.90,   4.38,   0.00,
05/27 04Z,   0.00,   0.97,  99.90,   0.97,   0.00,
05/27 05Z,   0.00,  -2.26,  99.90,  -2.26,   0.00,
05/27 06Z,   0.00,  -3.81,  99.90,  -3.81,   0.00,  (min)
05/27 07Z,   0.00,  -2.38,  99.90,  -2.38,   0.00,
05/27 08Z,   0.00,   1.78,  99.90,   1.78,   0.00,
05/27 09Z,   0.00,   6.79,  99.90,   6.79,   0.00,
05/27 10Z,   0.00,  10.79,  99.90,  10.79,   0.00,
05/27 11Z,   0.00,  13.17,  99.90,  13.17,   0.00,
05/27 12Z,   0.00,  14.22,  99.90,  14.22,   0.00,
05/27 13Z,   0.00,  14.42,  99.90,  14.42,   0.00,  (max)
05/27 14Z,   0.00,  14.18,  99.90,  14.18,   0.00,
05/27 15Z,   0.00,  13.35,  99.90,  13.35,   0.00,
05/27 16Z,   0.00,  11.62,  99.90,  11.62,   0.00,
05/27 17Z,   0.00,   9.08,  99.90,   9.08,   0.00,
05/27 18Z,   0.00,   6.42,  99.90,   6.42,   0.00,
05/27 19Z,   0.00,   4.92,  99.90,   4.92,   0.00,  (min)
05/27 20Z,  -0.10,   5.54,  99.90,   5.44,   0.00,
05/27 21Z,  -0.10,   7.54,  99.90,   7.44,   0.00,
05/27 22Z,  -0.10,   9.30,  99.90,   9.20,   0.00,
05/27 23Z,  -0.10,  10.07,  99.90,   9.97,   0.00,
05/28 00Z,  -0.10,  10.22,  99.90,  10.12,   0.00,  (max)
05/28 01Z,  -0.10,  10.08,  99.90,   9.98,   0.00,
05/28 02Z,   0.00,   9.23,  99.90,   9.23,   0.00,
05/28 03Z,   0.00,   7.38,  99.90,   7.38,   0.00,
05/28 04Z,   0.00,   4.46,  99.90,   4.46,   0.00,
05/28 05Z,   0.00,   0.92,  99.90,   0.92,   0.00,
05/28 06Z,   0.00,  -2.31,  99.90,  -2.31,   0.00,
05/28 07Z,   0.00,  -3.72,  99.90,  -3.72,   0.00,  (min)
05/28 08Z,   0.00,  -2.03,  99.90,  -2.03,   0.00,
05/28 09Z,   0.10,   2.33,  99.90,   2.43,   0.00,
05/28 10Z,   0.10,   7.35,  99.90,   7.45,   0.00,
05/28 11Z,   0.10,  11.26,  99.90,  11.36,   0.00,
05/28 12Z,   0.10,  13.54,  99.90,  13.64,   0.00,
05/28 13Z,   0.00,  14.51,  99.90,  14.51,   0.00,
05/28 14Z,   0.00,  14.64,  99.90,  14.64,   0.00,  (max)
05/28 15Z,   0.00,  14.30,  99.90,  14.30,   0.00,
05/28 16Z,   0.00,  13.26,  99.90,  13.26,   0.00,
05/28 17Z,   0.00,  11.23,  99.90,  11.23,   0.00,
05/28 18Z,   0.10,   8.36,  99.90,   8.46,   0.00,
05/28 19Z,   0.10,   5.45,  99.90,   5.55,   0.00,
05/28 20Z,   0.10,   3.95,  99.90,   4.05,   0.00,  (min)
05/28 21Z,   0.20,   4.76,  99.90,   4.96,   0.00,
05/28 22Z,   0.20,   7.03,  99.90,   7.23,   0.00,
05/28 23Z,   0.20,   9.03,  99.90,   9.23,   0.00,
05/29 00Z,   0.20,  10.01,  99.90,  10.21,   0.00,
05/29 01Z,   0.20,  10.26,  99.90,  10.46,   0.00,  (max)
05/29 02Z,   0.20,  10.15,  99.90,  10.35,   0.00,
05/29 03Z,   0.20,   9.38,  99.90,   9.58,   0.00,
05/29 04Z,   0.20,   7.62,  99.90,   7.82,   0.00,
05/29 05Z,   0.20,   4.80,  99.90,   5.00,   0.00,
05/29 06Z,   0.20,   1.32,  99.90,   1.52,   0.00,
05/29 07Z,   0.20,  -1.87,  99.90,  -1.67,   0.00,
05/29 08Z,   0.20,  -3.16,  99.90,  -2.96,   0.00,  (min)
05/29 09Z,   0.20,  -1.32,  99.90,  -1.12,   0.00,
05/29 10Z,   0.20,   3.06,  99.90,   3.26,   0.00,
05/29 11Z,   0.20,   7.94,  99.90,   8.14,   0.00,
05/29 12Z,   0.20,  11.64,  99.90,  11.84,   0.00,
05/29 13Z,   0.10,  13.74,  99.90,  13.84,   0.00,
05/29 14Z,   0.10,  14.59,  99.90,  14.69,   0.00,
05/29 15Z,   0.10,  14.64,  99.90,  14.74,   0.00,  (max)
05/29 16Z,   0.10,  14.18,  99.90,  14.28,   0.00,
05/29 17Z,   0.10,  12.91,  99.90,  13.01,   0.00,
05/29 18Z,   0.10,  10.58,  99.90,  10.68,   0.00,
05/29 19Z,   0.20,   7.39,  99.90,   7.59,   0.00,
05/29 20Z,   0.20,   4.29,  99.90,   4.49,   0.00,
05/29 21Z,   0.20,   2.84,  99.90,   3.04,   0.00,  (min)
05/29 22Z,   0.20,   3.88,  99.90,   4.08,   0.00,
05/29 23Z,   0.20,   6.43,  99.90,   6.63,   0.00,
05/30 00Z,   0.20,   8.72,  99.90,   8.92,   0.00,
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