EXTRA-TROPICAL  STORM  SURGE  2.3
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#Nantucket Island, MA : 03/20/2023 17:22:21 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/19 00Z,   1.00,  -1.80,  -0.82,  99.90,  -0.02,
03/19 01Z,   1.00,  -1.23,  -0.17,  99.90,   0.06,
03/19 02Z,   1.00,  -0.87,   0.28,  99.90,   0.15,
03/19 03Z,   0.90,  -0.85,   0.28,  99.90,   0.23,  (max)
03/19 04Z,   0.80,  -1.20,  -0.19,  99.90,   0.21,
03/19 05Z,   0.80,  -1.83,  -0.86,  99.90,   0.17,
03/19 06Z,   0.80,  -2.61,  -1.58,  99.90,   0.23,
03/19 07Z,   0.80,  -3.31,  -2.40,  99.90,   0.11,
03/19 08Z,   0.70,  -3.61,  -2.80,  99.90,   0.11,  (min)
03/19 09Z,   0.70,  -3.38,  -2.59,  99.90,   0.09,
03/19 10Z,   0.70,  -2.74,  -1.99,  99.90,   0.05,
03/19 11Z,   0.70,  -1.97,  -1.27,  99.90,  -0.00,
03/19 12Z,   0.50,  -1.20,  -0.43,  99.90,   0.27,
03/19 13Z,   0.50,  -0.50,   0.19,  99.90,   0.19,
03/19 14Z,   0.40,  -0.00,   0.74,  99.90,   0.34,
03/19 15Z,   0.30,   0.14,   0.80,  99.90,   0.36,  (max)
03/19 16Z,   0.30,  -0.17,   0.47,  99.90,   0.34,
03/19 17Z,   0.30,  -0.85,  -0.26,  99.90,   0.29,
03/19 18Z,   0.40,  -1.82,  -1.17,  99.90,   0.25,
03/19 19Z,   0.30,  -2.85,  -2.25,  99.90,   0.30,
03/19 20Z,   0.30,  -3.63,  -3.12,  99.90,   0.21,
03/19 21Z,   0.20,  -3.87,  -3.44,  99.90,   0.23,  (min)
03/19 22Z,   0.10,  -3.58,  -3.26,  99.90,   0.22,
03/19 23Z,   0.10,  -2.99,  -2.67,  99.90,   0.22,
03/20 00Z,   0.00,  -2.30,  -2.10,  99.90,   0.20,
03/20 01Z,   0.00,  -1.61,  -1.43,  99.90,   0.18,
03/20 02Z,   0.00,  -0.99,  -0.77,  99.90,   0.22,
03/20 03Z,   0.00,  -0.62,  -0.42,  99.90,   0.20,  (max)
03/20 04Z,  -0.10,  -0.63,  -0.46,  99.90,   0.27,
03/20 05Z,  -0.10,  -1.04,  -0.93,  99.90,   0.21,
03/20 06Z,   0.00,  -1.78,  -1.68,  99.90,   0.10,
03/20 07Z,   0.00,  -2.68,  -2.57,  99.90,   0.11,
03/20 08Z,   0.00,  -3.46,  -3.39,  99.90,   0.07,
03/20 09Z,   0.00,  -3.80,  -3.82,  99.90,  -0.02,  (min)
03/20 10Z,   0.00,  -3.55,  -3.60,  99.90,  -0.05,
03/20 11Z,   0.00,  -2.89,  -3.01,  99.90,  -0.12,
03/20 12Z,   0.00,  -2.09,  -2.25,  99.90,  -0.16,
03/20 13Z,   0.00,  -1.29,  -1.45,  99.90,  -0.16,
03/20 14Z,   0.00,  -0.54,  -0.59,  99.90,  -0.05,
03/20 15Z,   0.00,  -0.02,   0.04,  99.90,   0.06,
03/20 16Z,   0.00,   0.12,   0.23,  99.90,   0.11,  (max)
03/20 17Z,   0.00,  -0.20,  -0.10,  99.90,   0.10,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/20 18Z,   0.00,  -0.92,  99.90,  -0.83,   0.10,
03/20 19Z,   0.00,  -1.94,  99.90,  -1.84,   0.09,
03/20 20Z,   0.00,  -3.00,  99.90,  -2.90,   0.09,
03/20 21Z,  -0.10,  -3.74,  99.90,  -3.75,   0.09,
03/20 22Z,  -0.10,  -3.90,  99.90,  -3.91,   0.09,  (min)
03/20 23Z,  -0.10,  -3.51,  99.90,  -3.53,   0.09,
03/21 00Z,  -0.10,  -2.85,  99.90,  -2.86,   0.08,
03/21 01Z,  -0.10,  -2.10,  99.90,  -2.12,   0.08,
03/21 02Z,   0.00,  -1.35,  99.90,  -1.27,   0.08,
03/21 03Z,   0.00,  -0.70,  99.90,  -0.62,   0.08,
03/21 04Z,   0.00,  -0.35,  99.90,  -0.27,   0.08,  (max)
03/21 05Z,   0.00,  -0.43,  99.90,  -0.35,   0.08,
03/21 06Z,   0.00,  -0.93,  99.90,  -0.85,   0.08,
03/21 07Z,   0.00,  -1.77,  99.90,  -1.70,   0.08,
03/21 08Z,   0.00,  -2.78,  99.90,  -2.70,   0.08,
03/21 09Z,   0.00,  -3.62,  99.90,  -3.55,   0.08,
03/21 10Z,   0.00,  -3.95,  99.90,  -3.88,   0.08,  (min)
03/21 11Z,   0.00,  -3.68,  99.90,  -3.60,   0.08,
03/21 12Z,   0.00,  -3.01,  99.90,  -2.93,   0.08,
03/21 13Z,   0.00,  -2.19,  99.90,  -2.11,   0.08,
03/21 14Z,   0.00,  -1.36,  99.90,  -1.28,   0.08,
03/21 15Z,   0.00,  -0.60,  99.90,  -0.52,   0.08,
03/21 16Z,   0.00,  -0.07,  99.90,   0.00,   0.08,
03/21 17Z,   0.00,   0.04,  99.90,   0.12,   0.08,  (max)
03/21 18Z,   0.00,  -0.31,  99.90,  -0.23,   0.08,
03/21 19Z,   0.00,  -1.07,  99.90,  -1.00,   0.08,
03/21 20Z,   0.00,  -2.11,  99.90,  -2.04,   0.08,
03/21 21Z,   0.00,  -3.15,  99.90,  -3.08,   0.08,
03/21 22Z,   0.00,  -3.81,  99.90,  -3.73,   0.08,
03/21 23Z,   0.00,  -3.85,  99.90,  -3.77,   0.08,  (min)
03/22 00Z,   0.00,  -3.37,  99.90,  -3.29,   0.08,
03/22 01Z,   0.00,  -2.63,  99.90,  -2.56,   0.08,
03/22 02Z,   0.00,  -1.84,  99.90,  -1.76,   0.08,
03/22 03Z,   0.00,  -1.06,  99.90,  -0.98,   0.08,
03/22 04Z,   0.00,  -0.42,  99.90,  -0.34,   0.08,
03/22 05Z,   0.00,  -0.12,  99.90,  -0.05,   0.08,  (max)
03/22 06Z,   0.00,  -0.28,  99.90,  -0.20,   0.08,
03/22 07Z,   0.00,  -0.88,  99.90,  -0.80,   0.08,
03/22 08Z,   0.00,  -1.83,  99.90,  -1.75,   0.08,
03/22 09Z,   0.00,  -2.91,  99.90,  -2.83,   0.08,
03/22 10Z,   0.00,  -3.76,  99.90,  -3.69,   0.08,
03/22 11Z,   0.00,  -4.06,  99.90,  -3.98,   0.08,  (min)
03/22 12Z,   0.00,  -3.75,  99.90,  -3.67,   0.08,
03/22 13Z,   0.00,  -3.06,  99.90,  -2.99,   0.08,
03/22 14Z,   0.00,  -2.25,  99.90,  -2.18,   0.08,
03/22 15Z,   0.00,  -1.42,  99.90,  -1.35,   0.08,
03/22 16Z,   0.00,  -0.67,  99.90,  -0.60,   0.08,
03/22 17Z,   0.10,  -0.18,  99.90,  -0.00,   0.08,
03/22 18Z,   0.10,  -0.10,  99.90,   0.07,   0.08,  (max)
03/22 19Z,   0.00,  -0.49,  99.90,  -0.42,   0.08,
03/22 20Z,   0.00,  -1.28,  99.90,  -1.20,   0.08,
03/22 21Z,   0.00,  -2.31,  99.90,  -2.23,   0.08,
03/22 22Z,   0.10,  -3.28,  99.90,  -3.10,   0.08,
03/22 23Z,   0.10,  -3.81,  99.90,  -3.63,   0.08,  (min)
03/23 00Z,   0.10,  -3.71,  99.90,  -3.54,   0.08,
03/23 01Z,   0.10,  -3.14,  99.90,  -2.97,   0.08,
03/23 02Z,   0.10,  -2.37,  99.90,  -2.19,   0.08,
03/23 03Z,   0.10,  -1.55,  99.90,  -1.38,   0.08,
03/23 04Z,   0.10,  -0.78,  99.90,  -0.60,   0.08,
03/23 05Z,   0.10,  -0.19,  99.90,  -0.01,   0.08,
03/23 06Z,   0.20,   0.03,  99.90,   0.31,   0.08,  (max)
03/23 07Z,   0.20,  -0.22,  99.90,   0.05,   0.08,
03/23 08Z,   0.20,  -0.92,  99.90,  -0.64,   0.08,
03/23 09Z,   0.20,  -1.94,  99.90,  -1.66,   0.08,
03/23 10Z,   0.20,  -3.04,  99.90,  -2.77,   0.08,
03/23 11Z,   0.20,  -3.86,  99.90,  -3.58,   0.08,
03/23 12Z,   0.20,  -4.09,  99.90,  -3.81,   0.08,  (min)
03/23 13Z,   0.20,  -3.74,  99.90,  -3.46,   0.08,
03/23 14Z,   0.20,  -3.06,  99.90,  -2.79,   0.08,
03/23 15Z,   0.20,  -2.28,  99.90,  -2.00,   0.08,
03/23 16Z,   0.20,  -1.48,  99.90,  -1.20,   0.08,
03/23 17Z,   0.20,  -0.76,  99.90,  -0.49,   0.08,
03/23 18Z,   0.20,  -0.32,  99.90,  -0.05,   0.08,
03/23 19Z,   0.20,  -0.30,  99.90,  -0.03,   0.08,  (max)
03/23 20Z,   0.20,  -0.72,  99.90,  -0.45,   0.08,
03/23 21Z,   0.20,  -1.51,  99.90,  -1.23,   0.08,
03/23 22Z,   0.20,  -2.49,  99.90,  -2.21,   0.08,
03/23 23Z,   0.30,  -3.34,  99.90,  -2.97,   0.08,
03/24 00Z,   0.30,  -3.72,  99.90,  -3.35,   0.08,  (min)
03/24 01Z,   0.30,  -3.51,  99.90,  -3.13,   0.08,
03/24 02Z,   0.30,  -2.87,  99.90,  -2.50,   0.08,
03/24 03Z,   0.30,  -2.09,  99.90,  -1.71,   0.08,
03/24 04Z,   0.30,  -1.29,  99.90,  -0.92,   0.08,
03/24 05Z,   0.30,  -0.56,  99.90,  -0.18,   0.08,
03/24 06Z,   0.40,  -0.04,  99.90,   0.44,   0.08,
03/24 07Z,   0.30,   0.08,  99.90,   0.46,   0.08,  (max)
03/24 08Z,   0.30,  -0.27,  99.90,   0.11,   0.08,
03/24 09Z,   0.40,  -1.03,  99.90,  -0.55,   0.08,
03/24 10Z,   0.40,  -2.07,  99.90,  -1.60,   0.08,
03/24 11Z,   0.50,  -3.15,  99.90,  -2.57,   0.08,
03/24 12Z,   0.50,  -3.89,  99.90,  -3.31,   0.08,