EXTRA-TROPICAL  STORM  SURGE  2.3
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#Nantucket Island, MA : 03/22/2023 18:22:14 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/21 00Z,  -0.20,  -3.90,  -3.87,  99.90,   0.23,
03/21 01Z,  -0.20,  -3.15,  -3.22,  99.90,   0.13,
03/21 02Z,  -0.10,  -2.40,  -2.52,  99.90,  -0.02,
03/21 03Z,  -0.10,  -1.75,  -1.91,  99.90,  -0.06,
03/21 04Z,  -0.10,  -1.40,  -1.51,  99.90,  -0.01,  (max)
03/21 05Z,  -0.10,  -1.48,  -1.56,  99.90,   0.02,
03/21 06Z,  -0.10,  -1.98,  -2.09,  99.90,  -0.01,
03/21 07Z,  -0.10,  -2.82,  -2.93,  99.90,  -0.01,
03/21 08Z,  -0.10,  -3.83,  -3.83,  99.90,   0.10,
03/21 09Z,  -0.10,  -4.67,  -4.78,  99.90,  -0.01,
03/21 10Z,  -0.10,  -5.00,  -5.11,  99.90,  -0.01,  (min)
03/21 11Z,  -0.10,  -4.73,  -4.81,  99.90,   0.02,
03/21 12Z,  -0.10,  -4.06,  -4.15,  99.90,   0.01,
03/21 13Z,  -0.10,  -3.24,  -3.33,  99.90,   0.01,
03/21 14Z,  -0.10,  -2.41,  -2.50,  99.90,   0.01,
03/21 15Z,  -0.10,  -1.65,  -1.73,  99.90,   0.02,
03/21 16Z,  -0.10,  -1.12,  -1.14,  99.90,   0.08,
03/21 17Z,  -0.10,  -1.01,  -0.96,  99.90,   0.15,  (max)
03/21 18Z,  -0.10,  -1.36,  -1.31,  99.90,   0.15,
03/21 19Z,  -0.10,  -2.12,  -2.08,  99.90,   0.14,
03/21 20Z,  -0.10,  -3.16,  -3.06,  99.90,   0.20,
03/21 21Z,  -0.10,  -4.20,  -4.08,  99.90,   0.22,
03/21 22Z,  -0.10,  -4.86,  -4.75,  99.90,   0.21,  (min)
03/21 23Z,  -0.10,  -4.90,  -4.74,  99.90,   0.26,
03/22 00Z,  -0.20,  -4.42,  -4.14,  99.90,   0.48,
03/22 01Z,  -0.20,  -3.68,  -3.42,  99.90,   0.46,
03/22 02Z,  -0.20,  -2.89,  -2.70,  99.90,   0.39,
03/22 03Z,  -0.20,  -2.11,  -1.94,  99.90,   0.37,
03/22 04Z,  -0.20,  -1.47,  -1.26,  99.90,   0.41,
03/22 05Z,  -0.20,  -1.17,  -0.98,  99.90,   0.39,  (max)
03/22 06Z,  -0.10,  -1.33,  -1.09,  99.90,   0.34,
03/22 07Z,   0.00,  -1.93,  -1.73,  99.90,   0.20,
03/22 08Z,   0.00,  -2.88,  -2.61,  99.90,   0.27,
03/22 09Z,   0.00,  -3.96,  -3.62,  99.90,   0.34,
03/22 10Z,   0.00,  -4.81,  -4.60,  99.90,   0.21,
03/22 11Z,   0.00,  -5.11,  -4.92,  99.90,   0.19,  (min)
03/22 12Z,   0.00,  -4.80,  -4.60,  99.90,   0.20,
03/22 13Z,   0.00,  -4.11,  -3.84,  99.90,   0.27,
03/22 14Z,   0.00,  -3.30,  -3.03,  99.90,   0.27,
03/22 15Z,   0.10,  -2.47,  -2.25,  99.90,   0.12,
03/22 16Z,   0.10,  -1.72,  -1.57,  99.90,   0.05,
03/22 17Z,   0.10,  -1.23,  -1.11,  99.90,   0.02,
03/22 18Z,   0.10,  -1.15,  -1.02,  99.90,   0.03,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/22 19Z,   0.10,  -1.54,  99.90,  -1.40,   0.04,
03/22 20Z,   0.10,  -2.33,  99.90,  -2.18,   0.05,
03/22 21Z,   0.20,  -3.36,  99.90,  -3.10,   0.06,
03/22 22Z,   0.20,  -4.33,  99.90,  -4.06,   0.07,
03/22 23Z,   0.20,  -4.86,  99.90,  -4.58,   0.08,  (min)
03/23 00Z,   0.10,  -4.76,  99.90,  -4.58,   0.09,
03/23 01Z,   0.10,  -4.19,  99.90,  -4.00,   0.10,
03/23 02Z,   0.10,  -3.42,  99.90,  -3.21,   0.11,
03/23 03Z,   0.20,  -2.60,  99.90,  -2.29,   0.12,
03/23 04Z,   0.20,  -1.83,  99.90,  -1.50,   0.12,
03/23 05Z,   0.10,  -1.24,  99.90,  -1.00,   0.13,
03/23 06Z,   0.10,  -1.02,  99.90,  -0.78,   0.14,  (max)
03/23 07Z,   0.20,  -1.27,  99.90,  -0.93,   0.14,
03/23 08Z,   0.20,  -1.97,  99.90,  -1.63,   0.14,
03/23 09Z,   0.30,  -2.99,  99.90,  -2.55,   0.14,
03/23 10Z,   0.30,  -4.09,  99.90,  -3.65,   0.14,
03/23 11Z,   0.30,  -4.91,  99.90,  -4.47,   0.14,
03/23 12Z,   0.30,  -5.14,  99.90,  -4.70,   0.14,  (min)
03/23 13Z,   0.40,  -4.79,  99.90,  -4.25,   0.14,
03/23 14Z,   0.40,  -4.11,  99.90,  -3.57,   0.14,
03/23 15Z,   0.40,  -3.33,  99.90,  -2.79,   0.14,
03/23 16Z,   0.40,  -2.53,  99.90,  -1.99,   0.14,
03/23 17Z,   0.40,  -1.81,  99.90,  -1.27,   0.14,
03/23 18Z,   0.40,  -1.37,  99.90,  -0.83,   0.14,
03/23 19Z,   0.40,  -1.35,  99.90,  -0.81,   0.14,  (max)
03/23 20Z,   0.40,  -1.77,  99.90,  -1.23,   0.14,
03/23 21Z,   0.40,  -2.56,  99.90,  -2.02,   0.14,
03/23 22Z,   0.40,  -3.54,  99.90,  -3.00,   0.14,
03/23 23Z,   0.40,  -4.39,  99.90,  -3.85,   0.14,
03/24 00Z,   0.30,  -4.77,  99.90,  -4.33,   0.14,  (min)
03/24 01Z,   0.30,  -4.56,  99.90,  -4.11,   0.14,
03/24 02Z,   0.20,  -3.92,  99.90,  -3.58,   0.14,
03/24 03Z,   0.20,  -3.14,  99.90,  -2.80,   0.14,
03/24 04Z,   0.20,  -2.34,  99.90,  -2.00,   0.14,
03/24 05Z,   0.30,  -1.61,  99.90,  -1.16,   0.14,
03/24 06Z,   0.30,  -1.09,  99.90,  -0.64,   0.14,
03/24 07Z,   0.30,  -0.97,  99.90,  -0.53,   0.14,  (max)
03/24 08Z,   0.30,  -1.32,  99.90,  -0.87,   0.14,
03/24 09Z,   0.20,  -2.08,  99.90,  -1.74,   0.14,
03/24 10Z,   0.30,  -3.12,  99.90,  -2.68,   0.14,
03/24 11Z,   0.40,  -4.20,  99.90,  -3.66,   0.14,
03/24 12Z,   0.40,  -4.94,  99.90,  -4.40,   0.14,
03/24 13Z,   0.50,  -5.09,  99.90,  -4.45,   0.14,  (min)
03/24 14Z,   0.50,  -4.72,  99.90,  -4.07,   0.14,
03/24 15Z,   0.60,  -4.07,  99.90,  -3.33,   0.14,
03/24 16Z,   0.60,  -3.33,  99.90,  -2.59,   0.14,
03/24 17Z,   0.60,  -2.58,  99.90,  -1.84,   0.14,
03/24 18Z,   0.60,  -1.92,  99.90,  -1.18,   0.14,
03/24 19Z,   0.50,  -1.55,  99.90,  -0.90,   0.14,  (max)
03/24 20Z,   0.50,  -1.58,  99.90,  -0.94,   0.14,
03/24 21Z,   0.50,  -2.02,  99.90,  -1.38,   0.14,
03/24 22Z,   0.50,  -2.77,  99.90,  -2.13,   0.14,
03/24 23Z,   0.50,  -3.67,  99.90,  -3.02,   0.14,
03/25 00Z,   0.40,  -4.38,  99.90,  -3.84,   0.14,
03/25 01Z,   0.40,  -4.62,  99.90,  -4.07,   0.14,  (min)
03/25 02Z,   0.40,  -4.30,  99.90,  -3.76,   0.14,
03/25 03Z,   0.40,  -3.64,  99.90,  -3.10,   0.14,
03/25 04Z,   0.40,  -2.89,  99.90,  -2.35,   0.14,
03/25 05Z,   0.40,  -2.14,  99.90,  -1.60,   0.14,
03/25 06Z,   0.40,  -1.47,  99.90,  -0.92,   0.14,
03/25 07Z,   0.50,  -1.04,  99.90,  -0.40,   0.14,
03/25 08Z,   0.50,  -1.02,  99.90,  -0.38,   0.14,  (max)
03/25 09Z,   0.50,  -1.44,  99.90,  -0.80,   0.14,
03/25 10Z,   0.60,  -2.23,  99.90,  -1.49,   0.14,
03/25 11Z,   0.70,  -3.26,  99.90,  -2.42,   0.14,
03/25 12Z,   0.80,  -4.26,  99.90,  -3.32,   0.14,
03/25 13Z,   0.80,  -4.90,  99.90,  -3.96,   0.14,
03/25 14Z,   0.80,  -4.97,  99.90,  -4.03,   0.14,  (min)
03/25 15Z,   0.80,  -4.59,  99.90,  -3.65,   0.14,
03/25 16Z,   0.90,  -3.99,  99.90,  -2.95,   0.14,
03/25 17Z,   0.90,  -3.32,  99.90,  -2.28,   0.14,
03/25 18Z,   0.90,  -2.62,  99.90,  -1.58,   0.14,
03/25 19Z,   1.00,  -2.03,  99.90,  -0.89,   0.14,
03/25 20Z,   1.10,  -1.74,  99.90,  -0.49,   0.14,  (max)
03/25 21Z,   1.10,  -1.82,  99.90,  -0.58,   0.14,
03/25 22Z,   1.10,  -2.25,  99.90,  -1.01,   0.14,
03/25 23Z,   1.00,  -2.95,  99.90,  -1.81,   0.14,
03/26 00Z,   1.00,  -3.73,  99.90,  -2.59,   0.14,
03/26 01Z,   1.00,  -4.31,  99.90,  -3.16,   0.14,  (min)
03/26 02Z,   1.20,  -4.41,  99.90,  -3.07,   0.14,
03/26 03Z,   1.30,  -4.03,  99.90,  -2.59,   0.14,
03/26 04Z,   1.30,  -3.40,  99.90,  -1.96,   0.14,
03/26 05Z,   1.20,  -2.70,  99.90,  -1.36,   0.14,
03/26 06Z,   1.10,  -2.01,  99.90,  -0.77,   0.14,
03/26 07Z,   1.00,  -1.42,  99.90,  -0.28,   0.14,
03/26 08Z,   0.90,  -1.09,  99.90,  -0.04,   0.14,  (max)
03/26 09Z,   0.80,  -1.15,  99.90,  -0.21,   0.14,
03/26 10Z,   0.90,  -1.62,  99.90,  -0.57,   0.14,
03/26 11Z,   1.00,  -2.40,  99.90,  -1.25,   0.14,
03/26 12Z,   1.00,  -3.36,  99.90,  -2.22,   0.14,