EXTRA-TROPICAL  STORM  SURGE  2.3
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#Alitak, AK : 03/20/2023 23:21:31 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/19 06Z,  -0.30,   3.89,   4.05,  99.90,   0.46,
03/19 07Z,  -0.30,   6.88,   7.36,  99.90,   0.78,
03/19 08Z,  -0.20,   9.23,   9.78,  99.90,   0.75,
03/19 09Z,  -0.20,  10.49,  10.88,  99.90,   0.59,  (max)
03/19 10Z,  -0.20,  10.50,  10.54,  99.90,   0.24,
03/19 11Z,  -0.30,   9.34,   9.39,  99.90,   0.35,
03/19 12Z,  -0.40,   7.43,   7.44,  99.90,   0.41,
03/19 13Z,  -0.40,   5.32,   5.37,  99.90,   0.45,
03/19 14Z,  -0.50,   3.60,   3.82,  99.90,   0.72,
03/19 15Z,  -0.50,   2.71,   2.86,  99.90,   0.65,  (min)
03/19 16Z,  -0.50,   2.87,   3.08,  99.90,   0.71,
03/19 17Z,  -0.50,   4.17,   4.49,  99.90,   0.82,
03/19 18Z,  -0.50,   6.49,   6.38,  99.90,   0.39,
03/19 19Z,  -0.50,   9.17,   8.92,  99.90,   0.25,
03/19 20Z,  -0.50,  11.32,  11.20,  99.90,   0.38,
03/19 21Z,  -0.60,  12.34,  12.08,  99.90,   0.34,  (max)
03/19 22Z,  -0.70,  11.94,  11.60,  99.90,   0.36,
03/19 23Z,  -0.80,  10.13,  10.00,  99.90,   0.67,
03/20 00Z,  -0.80,   7.26,   7.07,  99.90,   0.61,
03/20 01Z,  -0.70,   3.95,   3.75,  99.90,   0.50,
03/20 02Z,  -0.80,   0.92,   0.68,  99.90,   0.56,
03/20 03Z,  -0.80,  -1.14,  -1.50,  99.90,   0.44,
03/20 04Z,  -0.90,  -1.81,  -2.05,  99.90,   0.66,  (min)
03/20 05Z,  -1.00,  -0.90,  -1.28,  99.90,   0.62,
03/20 06Z,  -1.00,   1.54,   0.72,  99.90,   0.18,
03/20 07Z,  -1.00,   4.99,   4.26,  99.90,   0.27,
03/20 08Z,  -1.00,   8.40,   8.14,  99.90,   0.74,
03/20 09Z,  -1.00,  10.83,  10.76,  99.90,   0.93,
03/20 10Z,  -1.00,  11.81,  11.65,  99.90,   0.84,  (max)
03/20 11Z,  -1.10,  11.22,  11.00,  99.90,   0.88,
03/20 12Z,  -1.10,   9.32,   9.20,  99.90,   0.98,
03/20 13Z,  -1.10,   6.68,   6.52,  99.90,   0.94,
03/20 14Z,  -1.10,   4.00,   3.91,  99.90,   1.01,
03/20 15Z,  -1.10,   1.97,   1.72,  99.90,   0.85,
03/20 16Z,  -1.10,   1.08,   0.95,  99.90,   0.97,  (min)
03/20 17Z,  -1.10,   1.53,   1.60,  99.90,   1.17,
03/20 18Z,  -1.10,   3.40,   3.36,  99.90,   1.06,
03/20 19Z,  -1.10,   6.39,   6.20,  99.90,   0.91,
03/20 20Z,  -1.10,   9.63,   9.54,  99.90,   1.01,
03/20 21Z,  -1.10,  12.07,  12.21,  99.90,   1.24,
03/20 22Z,  -1.10,  13.03,  13.02,  99.90,   1.09,  (max)
03/20 23Z,  -1.10,  12.30,  12.33,  99.90,   1.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/21 00Z,  -1.00,  10.02,  99.90,  10.12,   1.09,
03/21 01Z,  -1.00,   6.71,  99.90,   6.77,   1.06,
03/21 02Z,  -1.00,   3.14,  99.90,   3.17,   1.03,
03/21 03Z,  -1.00,   0.12,  99.90,   0.11,   0.99,
03/21 04Z,  -1.00,  -1.67,  99.90,  -1.71,   0.96,
03/21 05Z,  -1.00,  -1.86,  99.90,  -1.93,   0.93,  (min)
03/21 06Z,  -0.90,  -0.31,  99.90,  -0.32,   0.89,
03/21 07Z,  -0.80,   2.80,  99.90,   2.86,   0.86,
03/21 08Z,  -0.80,   6.72,  99.90,   6.75,   0.83,
03/21 09Z,  -0.80,  10.23,  99.90,  10.23,   0.79,
03/21 10Z,  -0.80,  12.38,  99.90,  12.34,   0.76,
03/21 11Z,  -0.80,  12.75,  99.90,  12.68,   0.73,  (max)
03/21 12Z,  -0.90,  11.39,  99.90,  11.22,   0.73,
03/21 13Z,  -0.90,   8.72,  99.90,   8.55,   0.73,
03/21 14Z,  -1.00,   5.47,  99.90,   5.20,   0.73,
03/21 15Z,  -1.00,   2.46,  99.90,   2.19,   0.73,
03/21 16Z,  -1.10,   0.40,  99.90,   0.03,   0.73,
03/21 17Z,  -1.10,  -0.26,  99.90,  -0.63,   0.73,  (min)
03/21 18Z,  -1.20,   0.67,  99.90,   0.19,   0.73,
03/21 19Z,  -1.20,   3.15,  99.90,   2.68,   0.73,
03/21 20Z,  -1.10,   6.72,  99.90,   6.34,   0.73,
03/21 21Z,  -1.10,  10.25,  99.90,   9.88,   0.73,
03/21 22Z,  -1.00,  12.64,  99.90,  12.37,   0.73,
03/21 23Z,  -1.00,  13.28,  99.90,  13.01,   0.73,  (max)
03/22 00Z,  -1.00,  12.09,  99.90,  11.82,   0.73,
03/22 01Z,  -1.10,   9.38,  99.90,   9.00,   0.73,
03/22 02Z,  -1.20,   5.83,  99.90,   5.36,   0.73,
03/22 03Z,  -1.20,   2.30,  99.90,   1.83,   0.73,
03/22 04Z,  -1.30,  -0.39,  99.90,  -0.97,   0.73,
03/22 05Z,  -1.40,  -1.65,  99.90,  -2.32,   0.73,  (min)
03/22 06Z,  -1.20,  -1.18,  99.90,  -1.65,   0.73,
03/22 07Z,  -0.90,   1.05,  99.90,   0.88,   0.73,
03/22 08Z,  -0.80,   4.69,  99.90,   4.62,   0.73,
03/22 09Z,  -0.80,   8.77,  99.90,   8.69,   0.73,
03/22 10Z,  -0.90,  11.98,  99.90,  11.81,   0.73,
03/22 11Z,  -1.00,  13.49,  99.90,  13.22,   0.73,  (max)
03/22 12Z,  -1.00,  13.06,  99.90,  12.79,   0.73,
03/22 13Z,  -1.00,  10.90,  99.90,  10.63,   0.73,
03/22 14Z,  -1.00,   7.61,  99.90,   7.34,   0.73,
03/22 15Z,  -1.00,   4.04,  99.90,   3.77,   0.73,
03/22 16Z,  -1.00,   1.00,  99.90,   0.72,   0.73,
03/22 17Z,  -0.90,  -0.83,  99.90,  -1.00,   0.73,
03/22 18Z,  -0.90,  -1.06,  99.90,  -1.23,   0.73,  (min)
03/22 19Z,  -0.90,   0.42,  99.90,   0.25,   0.73,
03/22 20Z,  -0.80,   3.46,  99.90,   3.38,   0.73,
03/22 21Z,  -0.70,   7.33,  99.90,   7.36,   0.73,
03/22 22Z,  -0.60,  10.81,  99.90,  10.93,   0.73,
03/22 23Z,  -0.60,  12.83,  99.90,  12.96,   0.73,
03/23 00Z,  -0.60,  12.97,  99.90,  13.10,   0.73,  (max)
03/23 01Z,  -0.70,  11.31,  99.90,  11.34,   0.73,
03/23 02Z,  -0.80,   8.35,  99.90,   8.28,   0.73,
03/23 03Z,  -0.90,   4.86,  99.90,   4.69,   0.73,
03/23 04Z,  -1.00,   1.70,  99.90,   1.43,   0.73,
03/23 05Z,  -1.00,  -0.40,  99.90,  -0.67,   0.73,
03/23 06Z,  -1.00,  -0.94,  99.90,  -1.21,   0.73,  (min)
03/23 07Z,  -1.00,   0.23,  99.90,  -0.04,   0.73,
03/23 08Z,  -1.00,   3.02,  99.90,   2.75,   0.73,
03/23 09Z,  -0.90,   6.87,  99.90,   6.70,   0.73,
03/23 10Z,  -0.90,  10.68,  99.90,  10.51,   0.73,
03/23 11Z,  -0.80,  13.23,  99.90,  13.16,   0.73,
03/23 12Z,  -0.80,  13.89,  99.90,  13.82,   0.73,  (max)
03/23 13Z,  -0.80,  12.62,  99.90,  12.55,   0.73,
03/23 14Z,  -0.90,   9.83,  99.90,   9.66,   0.73,
03/23 15Z,  -1.00,   6.22,  99.90,   5.95,   0.73,
03/23 16Z,  -1.10,   2.65,  99.90,   2.28,   0.73,
03/23 17Z,  -1.10,  -0.12,  99.90,  -0.49,   0.73,
03/23 18Z,  -1.20,  -1.50,  99.90,  -1.97,   0.73,  (min)
03/23 19Z,  -1.20,  -1.19,  99.90,  -1.66,   0.73,
03/23 20Z,  -1.20,   0.81,  99.90,   0.34,   0.73,
03/23 21Z,  -1.20,   4.16,  99.90,   3.69,   0.73,
03/23 22Z,  -1.20,   7.99,  99.90,   7.52,   0.73,
03/23 23Z,  -1.20,  11.06,  99.90,  10.59,   0.73,
03/24 00Z,  -1.30,  12.50,  99.90,  11.93,   0.73,  (max)
03/24 01Z,  -1.30,  12.11,  99.90,  11.54,   0.73,
03/24 02Z,  -1.40,  10.14,  99.90,   9.47,   0.73,
03/24 03Z,  -1.40,   7.20,  99.90,   6.53,   0.73,
03/24 04Z,  -1.40,   4.08,  99.90,   3.41,   0.73,
03/24 05Z,  -1.40,   1.54,  99.90,   0.87,   0.73,
03/24 06Z,  -1.40,   0.20,  99.90,  -0.47,   0.73,  (min)
03/24 07Z,  -1.30,   0.41,  99.90,  -0.16,   0.73,
03/24 08Z,  -1.20,   2.18,  99.90,   1.70,   0.73,
03/24 09Z,  -1.20,   5.23,  99.90,   4.76,   0.73,
03/24 10Z,  -1.10,   8.90,  99.90,   8.53,   0.73,
03/24 11Z,  -1.20,  12.06,  99.90,  11.59,   0.73,
03/24 12Z,  -1.20,  13.71,  99.90,  13.24,   0.73,  (max)
03/24 13Z,  -1.30,  13.47,  99.90,  12.90,   0.73,
03/24 14Z,  -1.40,  11.53,  99.90,  10.86,   0.73,
03/24 15Z,  -1.50,   8.41,  99.90,   7.64,   0.73,
03/24 16Z,  -1.50,   4.84,  99.90,   4.07,   0.73,
03/24 17Z,  -1.50,   1.59,  99.90,   0.81,   0.73,
03/24 18Z,  -1.50,  -0.68,  99.90,  -1.45,   0.73,