Extra-Tropical Storm Surge: stn

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#Philadelphia, PA : 05/18/2021 18:20:30 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/17 00Z,   0.10,   4.43,   4.11,  99.90,  -0.42,
05/17 01Z,   0.10,   3.27,   3.10,  99.90,  -0.27,
05/17 02Z,   0.10,   2.23,   2.06,  99.90,  -0.27,
05/17 03Z,   0.20,   1.48,   1.12,  99.90,  -0.56,
05/17 04Z,   0.20,   1.12,   0.48,  99.90,  -0.84,  (min)
05/17 05Z,   0.20,   1.34,   1.59,  99.90,   0.05,
05/17 06Z,   0.10,   2.63,   3.27,  99.90,   0.54,
05/17 07Z,   0.10,   4.67,   4.57,  99.90,  -0.20,
05/17 08Z,   0.10,   6.21,   5.68,  99.90,  -0.63,
05/17 09Z,   0.10,   6.81,   6.57,  99.90,  -0.34,
05/17 10Z,   0.10,   6.94,   6.74,  99.90,  -0.30,  (max)
05/17 11Z,   0.10,   6.56,   5.90,  99.90,  -0.76,
05/17 12Z,   0.00,   5.53,   4.82,  99.90,  -0.71,
05/17 13Z,   0.00,   4.27,   3.74,  99.90,  -0.53,
05/17 14Z,   0.00,   3.11,   2.68,  99.90,  -0.43,
05/17 15Z,   0.00,   2.12,   1.61,  99.90,  -0.51,
05/17 16Z,   0.00,   1.36,   0.67,  99.90,  -0.69,
05/17 17Z,   0.00,   0.90,   0.07,  99.90,  -0.83,  (min)
05/17 18Z,   0.00,   1.22,   1.09,  99.90,  -0.13,
05/17 19Z,   0.00,   2.66,   2.77,  99.90,   0.11,
05/17 20Z,   0.00,   4.30,   4.00,  99.90,  -0.30,
05/17 21Z,   0.00,   5.24,   5.00,  99.90,  -0.24,
05/17 22Z,   0.00,   5.71,   5.70,  99.90,  -0.01,  (max)
05/17 23Z,   0.00,   5.85,   5.53,  99.90,  -0.32,
05/18 00Z,   0.00,   5.30,   4.76,  99.90,  -0.54,
05/18 01Z,   0.00,   4.20,   3.82,  99.90,  -0.38,
05/18 02Z,   0.00,   3.03,   2.77,  99.90,  -0.26,
05/18 03Z,   0.00,   2.02,   1.74,  99.90,  -0.28,
05/18 04Z,   0.00,   1.35,   0.85,  99.90,  -0.50,
05/18 05Z,   0.00,   1.08,   0.49,  99.90,  -0.59,  (min)
05/18 06Z,   0.00,   1.47,   1.99,  99.90,   0.52,
05/18 07Z,   0.00,   2.95,   3.56,  99.90,   0.61,
05/18 08Z,   0.00,   4.99,   4.85,  99.90,  -0.14,
05/18 09Z,   0.00,   6.35,   5.88,  99.90,  -0.47,
05/18 10Z,   0.00,   6.82,   6.67,  99.90,  -0.15,  (max)
05/18 11Z,   0.00,   6.88,   6.60,  99.90,  -0.28,
05/18 12Z,   0.00,   6.38,   5.69,  99.90,  -0.69,
05/18 13Z,   0.00,   5.26,   4.59,  99.90,  -0.67,
05/18 14Z,   0.00,   4.00,   3.51,  99.90,  -0.49,
05/18 15Z,   0.00,   2.85,   2.45,  99.90,  -0.40,
05/18 16Z,   0.00,   1.91,   1.39,  99.90,  -0.52,
05/18 17Z,   0.00,   1.21,   0.44,  99.90,  -0.77,
05/18 18Z,   0.00,   0.87,  -0.12,  99.90,  -0.99,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 19Z,   0.00,   1.42,  99.90,   0.49,  -0.93,
05/18 20Z,   0.00,   3.00,  99.90,   2.13,  -0.87,
05/18 21Z,   0.00,   4.58,  99.90,   3.76,  -0.82,
05/18 22Z,   0.00,   5.41,  99.90,   4.66,  -0.76,
05/18 23Z,   0.00,   5.85,  99.90,   5.15,  -0.70,
05/19 00Z,   0.00,   5.91,  99.90,   5.27,  -0.64,  (max)
05/19 01Z,   0.00,   5.23,  99.90,   4.65,  -0.58,
05/19 02Z,   0.00,   4.08,  99.90,   3.56,  -0.53,
05/19 03Z,   0.00,   2.91,  99.90,   2.44,  -0.47,
05/19 04Z,   0.00,   1.93,  99.90,   1.52,  -0.41,
05/19 05Z,   0.00,   1.30,  99.90,   0.95,  -0.35,
05/19 06Z,   0.00,   1.08,  99.90,   0.79,  -0.29,  (min)
05/19 07Z,   0.00,   1.58,  99.90,   1.28,  -0.29,
05/19 08Z,   0.00,   3.17,  99.90,   2.88,  -0.29,
05/19 09Z,   0.00,   5.15,  99.90,   4.85,  -0.29,
05/19 10Z,  -0.10,   6.34,  99.90,   5.95,  -0.29,
05/19 11Z,  -0.10,   6.77,  99.90,   6.38,  -0.29,
05/19 12Z,  -0.10,   6.81,  99.90,   6.42,  -0.29,  (max)
05/19 13Z,  -0.10,   6.23,  99.90,   5.84,  -0.29,
05/19 14Z,  -0.20,   5.07,  99.90,   4.58,  -0.29,
05/19 15Z,  -0.20,   3.81,  99.90,   3.32,  -0.29,
05/19 16Z,  -0.20,   2.68,  99.90,   2.19,  -0.29,
05/19 17Z,  -0.20,   1.77,  99.90,   1.28,  -0.29,
05/19 18Z,  -0.20,   1.12,  99.90,   0.62,  -0.29,
05/19 19Z,  -0.20,   0.86,  99.90,   0.37,  -0.29,  (min)
05/19 20Z,  -0.20,   1.59,  99.90,   1.10,  -0.29,
05/19 21Z,  -0.20,   3.27,  99.90,   2.78,  -0.29,
05/19 22Z,  -0.20,   4.78,  99.90,   4.29,  -0.29,
05/19 23Z,  -0.20,   5.59,  99.90,   5.09,  -0.29,
05/20 00Z,  -0.20,   6.04,  99.90,   5.55,  -0.29,  (max)
05/20 01Z,  -0.20,   6.04,  99.90,   5.54,  -0.29,
05/20 02Z,  -0.20,   5.26,  99.90,   4.77,  -0.29,
05/20 03Z,  -0.10,   4.08,  99.90,   3.68,  -0.29,
05/20 04Z,  -0.10,   2.91,  99.90,   2.51,  -0.29,
05/20 05Z,  -0.10,   1.95,  99.90,   1.56,  -0.29,
05/20 06Z,  -0.10,   1.33,  99.90,   0.93,  -0.29,
05/20 07Z,  -0.10,   1.09,  99.90,   0.69,  -0.29,  (min)
05/20 08Z,  -0.10,   1.62,  99.90,   1.23,  -0.29,
05/20 09Z,  -0.10,   3.26,  99.90,   2.87,  -0.29,
05/20 10Z,  -0.10,   5.15,  99.90,   4.76,  -0.29,
05/20 11Z,  -0.10,   6.25,  99.90,   5.85,  -0.29,
05/20 12Z,  -0.10,   6.70,  99.90,   6.31,  -0.29,
05/20 13Z,  -0.10,   6.77,  99.90,   6.37,  -0.29,  (max)
05/20 14Z,   0.00,   6.14,  99.90,   5.84,  -0.29,
05/20 15Z,   0.00,   4.95,  99.90,   4.65,  -0.29,
05/20 16Z,   0.00,   3.69,  99.90,   3.40,  -0.29,
05/20 17Z,   0.00,   2.58,  99.90,   2.29,  -0.29,
05/20 18Z,   0.00,   1.70,  99.90,   1.40,  -0.29,
05/20 19Z,   0.00,   1.04,  99.90,   0.75,  -0.29,
05/20 20Z,   0.00,   0.85,  99.90,   0.55,  -0.29,  (min)
05/20 21Z,   0.00,   1.73,  99.90,   1.44,  -0.29,
05/20 22Z,   0.00,   3.49,  99.90,   3.20,  -0.29,
05/20 23Z,   0.10,   4.97,  99.90,   4.78,  -0.29,
05/21 00Z,   0.10,   5.81,  99.90,   5.62,  -0.29,
05/21 01Z,   0.20,   6.32,  99.90,   6.23,  -0.29,  (max)
05/21 02Z,   0.20,   6.25,  99.90,   6.15,  -0.29,
05/21 03Z,   0.20,   5.38,  99.90,   5.29,  -0.29,
05/21 04Z,   0.20,   4.17,  99.90,   4.07,  -0.29,
05/21 05Z,   0.20,   3.00,  99.90,   2.91,  -0.29,
05/21 06Z,   0.20,   2.04,  99.90,   1.95,  -0.29,
05/21 07Z,   0.20,   1.37,  99.90,   1.28,  -0.29,
05/21 08Z,   0.20,   1.05,  99.90,   0.96,  -0.29,  (min)
05/21 09Z,   0.20,   1.59,  99.90,   1.50,  -0.29,
05/21 10Z,   0.20,   3.25,  99.90,   3.16,  -0.29,
05/21 11Z,   0.20,   5.05,  99.90,   4.96,  -0.29,
05/21 12Z,   0.20,   6.11,  99.90,   6.02,  -0.29,
05/21 13Z,   0.20,   6.65,  99.90,   6.56,  -0.29,
05/21 14Z,   0.20,   6.75,  99.90,   6.65,  -0.29,  (max)
05/21 15Z,   0.20,   6.06,  99.90,   5.97,  -0.29,
05/21 16Z,   0.20,   4.85,  99.90,   4.76,  -0.29,
05/21 17Z,   0.20,   3.62,  99.90,   3.52,  -0.29,
05/21 18Z,   0.10,   2.53,  99.90,   2.33,  -0.29,
05/21 19Z,   0.10,   1.64,  99.90,   1.45,  -0.29,
05/21 20Z,   0.10,   0.96,  99.90,   0.77,  -0.29,
05/21 21Z,   0.10,   0.83,  99.90,   0.63,  -0.29,  (min)
05/21 22Z,   0.10,   1.87,  99.90,   1.68,  -0.29,
05/21 23Z,   0.10,   3.71,  99.90,   3.52,  -0.29,
05/22 00Z,   0.10,   5.20,  99.90,   5.01,  -0.29,
05/22 01Z,   0.10,   6.12,  99.90,   5.92,  -0.29,
05/22 02Z,   0.10,   6.67,  99.90,   6.48,  -0.29,  (max)
05/22 03Z,   0.10,   6.51,  99.90,   6.32,  -0.29,
05/22 04Z,   0.10,   5.55,  99.90,   5.36,  -0.29,
05/22 05Z,   0.20,   4.32,  99.90,   4.22,  -0.29,
05/22 06Z,   0.20,   3.15,  99.90,   3.05,  -0.29,
05/22 07Z,   0.20,   2.16,  99.90,   2.07,  -0.29,
05/22 08Z,   0.20,   1.39,  99.90,   1.30,  -0.29,
05/22 09Z,   0.10,   0.96,  99.90,   0.77,  -0.29,  (min)
05/22 10Z,   0.10,   1.50,  99.90,   1.31,  -0.29,
05/22 11Z,   0.10,   3.17,  99.90,   2.97,  -0.29,
05/22 12Z,   0.10,   4.91,  99.90,   4.72,  -0.29,

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