EXTRA-TROPICAL  STORM  SURGE
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hat-on
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Surge List
#Boston, MA : 01/18/2026 10:21:47 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/16 18Z,  -0.10,   4.73,   4.63,  99.90,   0.00,
01/16 19Z,  -0.20,   2.55,   2.57,  99.90,   0.22,
01/16 20Z,  -0.30,   1.00,   0.83,  99.90,   0.13,
01/16 21Z,  -0.40,   0.60,   0.06,  99.90,  -0.14,  (min)
01/16 22Z,  -0.50,   1.20,   0.76,  99.90,   0.06,
01/16 23Z,  -0.50,   2.44,   2.17,  99.90,   0.23,
01/17 00Z,  -0.50,   4.24,   3.75,  99.90,   0.01,
01/17 01Z,  -0.40,   6.23,   5.73,  99.90,  -0.10,
01/17 02Z,  -0.40,   7.71,   6.98,  99.90,  -0.33,
01/17 03Z,  -0.40,   8.26,   7.80,  99.90,  -0.06,  (max)
01/17 04Z,  -0.40,   7.89,   7.54,  99.90,   0.05,
01/17 05Z,  -0.40,   6.79,   6.36,  99.90,  -0.03,
01/17 06Z,  -0.50,   5.20,   5.08,  99.90,   0.38,
01/17 07Z,  -0.50,   3.36,   3.31,  99.90,   0.45,
01/17 08Z,  -0.40,   1.87,   1.76,  99.90,   0.29,
01/17 09Z,  -0.40,   1.46,   1.21,  99.90,   0.15,  (min)
01/17 10Z,  -0.40,   2.20,   2.06,  99.90,   0.26,
01/17 11Z,  -0.40,   3.62,   3.33,  99.90,   0.11,
01/17 12Z,  -0.30,   5.47,   4.99,  99.90,  -0.18,
01/17 13Z,  -0.30,   7.52,   6.96,  99.90,  -0.26,
01/17 14Z,  -0.20,   9.17,   8.54,  99.90,  -0.43,
01/17 15Z,  -0.10,   9.83,   9.57,  99.90,  -0.16,  (max)
01/17 16Z,   0.00,   9.42,   9.19,  99.90,  -0.23,
01/17 17Z,   0.00,   8.14,   7.91,  99.90,  -0.23,
01/17 18Z,   0.20,   6.24,   6.42,  99.90,  -0.02,
01/17 19Z,   0.30,   3.98,   4.45,  99.90,   0.17,
01/17 20Z,   0.40,   1.79,   2.50,  99.90,   0.31,
01/17 21Z,   0.50,   0.47,   1.08,  99.90,   0.11,
01/17 22Z,   0.50,   0.44,   1.02,  99.90,   0.08,  (min)
01/17 23Z,   0.40,   1.37,   2.19,  99.90,   0.42,
01/18 00Z,   0.30,   2.92,   3.50,  99.90,   0.28,
01/18 01Z,   0.10,   4.92,   5.12,  99.90,   0.10,
01/18 02Z,   0.00,   6.92,   6.95,  99.90,   0.03,
01/18 03Z,   0.00,   8.21,   8.43,  99.90,   0.22,
01/18 04Z,   0.00,   8.48,   8.55,  99.90,   0.07,  (max)
01/18 05Z,   0.00,   7.79,   7.68,  99.90,  -0.11,
01/18 06Z,  -0.10,   6.40,   6.32,  99.90,   0.02,
01/18 07Z,  -0.10,   4.57,   4.64,  99.90,   0.17,
01/18 08Z,  -0.10,   2.66,   2.76,  99.90,   0.20,
01/18 09Z,  -0.10,   1.36,   1.46,  99.90,   0.20,
01/18 10Z,   0.00,   1.31,   1.35,  99.90,   0.04,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/18 11Z,   0.00,   2.42,  99.90,   2.46,   0.04,
01/18 12Z,   0.00,   4.13,  99.90,   4.18,   0.05,
01/18 13Z,   0.00,   6.18,  99.90,   6.24,   0.06,
01/18 14Z,   0.00,   8.26,  99.90,   8.33,   0.07,
01/18 15Z,   0.00,   9.71,  99.90,   9.79,   0.08,
01/18 16Z,   0.00,  10.05,  99.90,  10.14,   0.09,  (max)
01/18 17Z,   0.00,   9.27,  99.90,   9.37,   0.10,
01/18 18Z,   0.00,   7.64,  99.90,   7.75,   0.11,
01/18 19Z,   0.00,   5.47,  99.90,   5.59,   0.12,
01/18 20Z,   0.10,   3.07,  99.90,   3.30,   0.13,
01/18 21Z,   0.20,   1.00,  99.90,   1.34,   0.14,
01/18 22Z,   0.20,   0.05,  99.90,   0.40,   0.15,  (min)
01/18 23Z,   0.30,   0.47,  99.90,   0.92,   0.15,
01/19 00Z,   0.40,   1.79,  99.90,   2.34,   0.15,
01/19 01Z,   0.60,   3.63,  99.90,   4.37,   0.15,
01/19 02Z,   0.70,   5.76,  99.90,   6.61,   0.15,
01/19 03Z,   0.80,   7.66,  99.90,   8.61,   0.15,
01/19 04Z,   0.90,   8.67,  99.90,   9.72,   0.15,
01/19 05Z,   1.10,   8.56,  99.90,   9.81,   0.15,  (max)
01/19 06Z,   1.10,   7.51,  99.90,   8.75,   0.15,
01/19 07Z,   1.20,   5.82,  99.90,   7.16,   0.15,
01/19 08Z,   1.30,   3.81,  99.90,   5.26,   0.15,
01/19 09Z,   1.30,   1.93,  99.90,   3.38,   0.15,
01/19 10Z,   1.40,   0.93,  99.90,   2.48,   0.15,  (min)
01/19 11Z,   1.40,   1.33,  99.90,   2.88,   0.15,
01/19 12Z,   1.30,   2.82,  99.90,   4.27,   0.15,
01/19 13Z,   1.20,   4.80,  99.90,   6.15,   0.15,
01/19 14Z,   1.20,   6.99,  99.90,   8.33,   0.15,
01/19 15Z,   1.10,   8.98,  99.90,  10.23,   0.15,
01/19 16Z,   1.00,  10.13,  99.90,  11.28,   0.15,  (max)
01/19 17Z,   0.80,  10.07,  99.90,  11.01,   0.15,
01/19 18Z,   0.60,   8.88,  99.90,   9.63,   0.15,
01/19 19Z,   0.50,   6.91,  99.90,   7.55,   0.15,
01/19 20Z,   0.30,   4.52,  99.90,   4.97,   0.15,
01/19 21Z,   0.20,   2.11,  99.90,   2.45,   0.15,
01/19 22Z,   0.00,   0.30,  99.90,   0.45,   0.15,
01/19 23Z,  -0.10,  -0.16,  99.90,  -0.11,   0.15,  (min)
01/20 00Z,  -0.30,   0.76,  99.90,   0.61,   0.15,
01/20 01Z,  -0.50,   2.46,  99.90,   2.11,   0.15,
01/20 02Z,  -0.70,   4.53,  99.90,   3.97,   0.15,
01/20 03Z,  -0.80,   6.70,  99.90,   6.05,   0.15,
01/20 04Z,  -0.90,   8.38,  99.90,   7.63,   0.15,
01/20 05Z,  -1.10,   9.01,  99.90,   8.06,   0.15,  (max)
01/20 06Z,  -1.10,   8.48,  99.90,   7.52,   0.15,
01/20 07Z,  -1.00,   7.04,  99.90,   6.19,   0.15,
01/20 08Z,  -0.90,   5.09,  99.90,   4.33,   0.15,
01/20 09Z,  -0.80,   2.99,  99.90,   2.33,   0.15,
01/20 10Z,  -0.70,   1.26,  99.90,   0.71,   0.15,
01/20 11Z,  -0.70,   0.66,  99.90,   0.11,   0.15,  (min)
01/20 12Z,  -0.60,   1.54,  99.90,   1.09,   0.15,
01/20 13Z,  -0.60,   3.39,  99.90,   2.94,   0.15,
01/20 14Z,  -0.60,   5.57,  99.90,   5.11,   0.15,
01/20 15Z,  -0.60,   7.78,  99.90,   7.33,   0.15,
01/20 16Z,  -0.60,   9.58,  99.90,   9.13,   0.15,
01/20 17Z,  -0.60,  10.35,  99.90,   9.90,   0.15,  (max)
01/20 18Z,  -0.60,   9.84,  99.90,   9.38,   0.15,
01/20 19Z,  -0.60,   8.25,  99.90,   7.79,   0.15,
01/20 20Z,  -0.60,   5.99,  99.90,   5.54,   0.15,
01/20 21Z,  -0.60,   3.50,  99.90,   3.05,   0.15,
01/20 22Z,  -0.70,   1.21,  99.90,   0.66,   0.15,
01/20 23Z,  -0.70,  -0.19,  99.90,  -0.75,   0.15,  (min)
01/21 00Z,  -0.80,  -0.09,  99.90,  -0.75,   0.15,
01/21 01Z,  -0.90,   1.32,  99.90,   0.57,   0.15,
01/21 02Z,  -1.00,   3.33,  99.90,   2.48,   0.15,
01/21 03Z,  -1.10,   5.54,  99.90,   4.59,   0.15,
01/21 04Z,  -1.10,   7.63,  99.90,   6.68,   0.15,
01/21 05Z,  -1.10,   9.00,  99.90,   8.05,   0.15,
01/21 06Z,  -0.90,   9.18,  99.90,   8.43,   0.15,  (max)
01/21 07Z,  -0.80,   8.21,  99.90,   7.55,   0.15,
01/21 08Z,  -0.60,   6.43,  99.90,   5.97,   0.15,
01/21 09Z,  -0.50,   4.28,  99.90,   3.93,   0.15,
01/21 10Z,  -0.30,   2.20,  99.90,   2.04,   0.15,
01/21 11Z,  -0.20,   0.73,  99.90,   0.68,   0.15,
01/21 12Z,  -0.20,   0.59,  99.90,   0.54,   0.15,  (min)
01/21 13Z,  -0.10,   1.92,  99.90,   1.97,   0.15,
01/21 14Z,  -0.10,   4.04,  99.90,   4.08,   0.15,
01/21 15Z,  -0.10,   6.31,  99.90,   6.36,   0.15,
01/21 16Z,  -0.10,   8.45,  99.90,   8.50,   0.15,
01/21 17Z,  -0.10,   9.97,  99.90,  10.01,   0.15,
01/21 18Z,  -0.20,  10.31,  99.90,  10.26,   0.15,  (max)
01/21 19Z,  -0.20,   9.37,  99.90,   9.31,   0.15,
01/21 20Z,  -0.20,   7.44,  99.90,   7.39,   0.15,
01/21 21Z,  -0.10,   5.01,  99.90,   5.06,   0.15,
01/21 22Z,  -0.10,   2.54,  99.90,   2.59,   0.15,
01/21 23Z,  -0.10,   0.51,  99.90,   0.55,   0.15,
01/22 00Z,  -0.10,  -0.40,  99.90,  -0.36,   0.15,
01/22 01Z,  99.90,   0.26,  99.90,  99.90,   0.15,
01/22 02Z,  99.90,   2.10,  99.90,  99.90,   0.15,
01/22 03Z,  99.90,   4.33,  99.90,  99.90,   0.15,
01/22 04Z,  99.90,   6.57,  99.90,  99.90,   0.15,
01/22 05Z,  99.90,   8.47,  99.90,  99.90,   0.15,
01/22 06Z,  99.90,   9.45,  99.90,  99.90,   0.15,