EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
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Surge List
West Coast
#Port Townsend, WA : 10/17/2026 17:22:46 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/16 00Z,   0.40,   7.13,   6.98,  99.90,  -0.55,
10/16 01Z,   0.50,   7.21,   7.15,  99.90,  -0.56,  (max)
10/16 02Z,   0.50,   7.14,   7.05,  99.90,  -0.59,
10/16 03Z,   0.50,   6.65,   6.65,  99.90,  -0.50,
10/16 04Z,   0.50,   5.63,   5.72,  99.90,  -0.41,
10/16 05Z,   0.50,   4.16,   4.29,  99.90,  -0.37,
10/16 06Z,   0.50,   2.52,   2.66,  99.90,  -0.36,
10/16 07Z,   0.50,   1.03,   1.15,  99.90,  -0.38,
10/16 08Z,   0.50,   0.01,   0.25,  99.90,  -0.26,
10/16 09Z,   0.60,  -0.27,  -0.04,  99.90,  -0.37,  (min)
10/16 10Z,   0.60,   0.21,   0.44,  99.90,  -0.37,
10/16 11Z,   0.50,   1.23,   1.36,  99.90,  -0.37,
10/16 12Z,   0.50,   2.51,   2.52,  99.90,  -0.49,
10/16 13Z,   0.60,   3.93,   4.09,  99.90,  -0.44,
10/16 14Z,   0.60,   5.39,   5.54,  99.90,  -0.45,
10/16 15Z,   0.60,   6.68,   6.89,  99.90,  -0.39,
10/16 16Z,   0.60,   7.61,   7.84,  99.90,  -0.37,
10/16 17Z,   0.60,   8.12,   8.38,  99.90,  -0.34,
10/16 18Z,   0.70,   8.26,   8.48,  99.90,  -0.48,  (max)
10/16 19Z,   0.70,   8.09,   8.21,  99.90,  -0.58,
10/16 20Z,   0.70,   7.72,   7.74,  99.90,  -0.68,
10/16 21Z,   0.70,   7.32,   7.30,  99.90,  -0.72,
10/16 22Z,   0.70,   7.06,   7.13,  99.90,  -0.63,  (min)
10/16 23Z,   0.70,   6.94,   7.15,  99.90,  -0.49,
10/17 00Z,   0.80,   6.89,   7.23,  99.90,  -0.46,
10/17 01Z,   0.90,   6.86,   7.30,  99.90,  -0.46,  (max)
10/17 02Z,   1.00,   6.84,   7.22,  99.90,  -0.62,
10/17 03Z,   0.90,   6.66,   7.03,  99.90,  -0.53,
10/17 04Z,   0.90,   6.09,   6.41,  99.90,  -0.58,
10/17 05Z,   1.00,   5.06,   5.46,  99.90,  -0.60,
10/17 06Z,   0.90,   3.71,   4.15,  99.90,  -0.46,
10/17 07Z,   0.90,   2.31,   2.70,  99.90,  -0.51,
10/17 08Z,   1.00,   1.11,   1.54,  99.90,  -0.57,
10/17 09Z,   1.00,   0.34,   0.82,  99.90,  -0.52,
10/17 10Z,   1.00,   0.22,   0.73,  99.90,  -0.49,  (min)
10/17 11Z,   0.90,   0.73,   1.23,  99.90,  -0.40,
10/17 12Z,   0.80,   1.67,   2.13,  99.90,  -0.34,
10/17 13Z,   0.90,   2.83,   3.24,  99.90,  -0.49,
10/17 14Z,   0.90,   4.14,   4.61,  99.90,  -0.43,
10/17 15Z,   0.90,   5.50,   5.91,  99.90,  -0.49,
10/17 16Z,   0.90,   6.68,   7.12,  99.90,  -0.46,
10/17 17Z,   0.90,   7.53,   7.94,  99.90,  -0.49,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/17 18Z,   0.90,   8.02,  99.90,   8.42,  -0.50,
10/17 19Z,   0.80,   8.19,  99.90,   8.49,  -0.50,  (max)
10/17 20Z,   0.70,   8.07,  99.90,   8.26,  -0.51,
10/17 21Z,   0.80,   7.72,  99.90,   8.00,  -0.52,
10/17 22Z,   0.80,   7.29,  99.90,   7.57,  -0.52,
10/17 23Z,   0.80,   6.95,  99.90,   7.22,  -0.53,
10/18 00Z,   0.80,   6.71,  99.90,   6.98,  -0.53,
10/18 01Z,   0.80,   6.55,  99.90,   6.81,  -0.54,
10/18 02Z,   0.70,   6.45,  99.90,   6.61,  -0.54,
10/18 03Z,   0.70,   6.40,  99.90,   6.55,  -0.55,
10/18 04Z,   0.70,   6.20,  99.90,   6.34,  -0.56,
10/18 05Z,   0.70,   5.65,  99.90,   5.79,  -0.56,
10/18 06Z,   0.60,   4.71,  99.90,   4.75,  -0.56,
10/18 07Z,   0.60,   3.56,  99.90,   3.60,  -0.56,
10/18 08Z,   0.60,   2.40,  99.90,   2.44,  -0.56,
10/18 09Z,   0.60,   1.40,  99.90,   1.44,  -0.56,
10/18 10Z,   0.60,   0.78,  99.90,   0.81,  -0.56,
10/18 11Z,   0.60,   0.69,  99.90,   0.73,  -0.56,  (min)
10/18 12Z,   0.60,   1.15,  99.90,   1.19,  -0.56,
10/18 13Z,   0.60,   1.98,  99.90,   2.01,  -0.56,
10/18 14Z,   0.50,   3.04,  99.90,   2.98,  -0.56,
10/18 15Z,   0.60,   4.28,  99.90,   4.31,  -0.56,
10/18 16Z,   0.60,   5.56,  99.90,   5.60,  -0.56,
10/18 17Z,   0.60,   6.69,  99.90,   6.73,  -0.56,
10/18 18Z,   0.60,   7.50,  99.90,   7.54,  -0.56,
10/18 19Z,   0.60,   7.99,  99.90,   8.03,  -0.56,
10/18 20Z,   0.60,   8.16,  99.90,   8.20,  -0.56,  (max)
10/18 21Z,   0.60,   8.01,  99.90,   8.05,  -0.56,
10/18 22Z,   0.60,   7.58,  99.90,   7.62,  -0.56,
10/18 23Z,   0.60,   7.05,  99.90,   7.08,  -0.56,
10/19 00Z,   0.70,   6.59,  99.90,   6.73,  -0.56,
10/19 01Z,   0.70,   6.27,  99.90,   6.41,  -0.56,
10/19 02Z,   0.70,   6.06,  99.90,   6.20,  -0.56,
10/19 03Z,   0.70,   5.98,  99.90,   6.12,  -0.56,  (min)
10/19 04Z,   0.80,   5.96,  99.90,   6.20,  -0.56,  (max)
10/19 05Z,   0.80,   5.83,  99.90,   6.06,  -0.56,
10/19 06Z,   0.80,   5.37,  99.90,   5.61,  -0.56,
10/19 07Z,   0.80,   4.60,  99.90,   4.84,  -0.56,
10/19 08Z,   0.80,   3.65,  99.90,   3.89,  -0.56,
10/19 09Z,   0.80,   2.67,  99.90,   2.90,  -0.56,
10/19 10Z,   0.80,   1.78,  99.90,   2.02,  -0.56,
10/19 11Z,   0.90,   1.20,  99.90,   1.54,  -0.56,
10/19 12Z,   0.90,   1.09,  99.90,   1.43,  -0.56,  (min)
10/19 13Z,   0.80,   1.47,  99.90,   1.71,  -0.56,
10/19 14Z,   0.90,   2.22,  99.90,   2.56,  -0.56,
10/19 15Z,   0.90,   3.23,  99.90,   3.57,  -0.56,
10/19 16Z,   0.90,   4.45,  99.90,   4.79,  -0.56,
10/19 17Z,   0.80,   5.72,  99.90,   5.96,  -0.56,
10/19 18Z,   0.90,   6.82,  99.90,   7.16,  -0.56,
10/19 19Z,   0.90,   7.60,  99.90,   7.94,  -0.56,
10/19 20Z,   0.90,   8.04,  99.90,   8.38,  -0.56,  (max)
10/19 21Z,   0.80,   8.13,  99.90,   8.36,  -0.56,
10/19 22Z,   0.80,   7.82,  99.90,   8.06,  -0.56,
10/19 23Z,   0.90,   7.21,  99.90,   7.54,  -0.56,
10/20 00Z,   0.90,   6.53,  99.90,   6.86,  -0.56,
10/20 01Z,   0.90,   5.98,  99.90,   6.32,  -0.56,
10/20 02Z,   0.80,   5.64,  99.90,   5.87,  -0.56,
10/20 03Z,   0.90,   5.47,  99.90,   5.81,  -0.56,  (min)
10/20 04Z,   0.90,   5.49,  99.90,   5.82,  -0.56,
10/20 05Z,   0.80,   5.60,  99.90,   5.83,  -0.56,  (max)
10/20 06Z,   0.80,   5.59,  99.90,   5.83,  -0.56,
10/20 07Z,   0.80,   5.29,  99.90,   5.53,  -0.56,
10/20 08Z,   0.80,   4.70,  99.90,   4.94,  -0.56,
10/20 09Z,   0.80,   3.92,  99.90,   4.15,  -0.56,
10/20 10Z,   0.80,   3.03,  99.90,   3.27,  -0.56,
10/20 11Z,   0.80,   2.17,  99.90,   2.41,  -0.56,
10/20 12Z,   0.80,   1.56,  99.90,   1.80,  -0.56,
10/20 13Z,   0.80,   1.42,  99.90,   1.66,  -0.56,  (min)
10/20 14Z,   0.80,   1.78,  99.90,   2.02,  -0.56,
10/20 15Z,   0.80,   2.52,  99.90,   2.76,  -0.56,
10/20 16Z,   0.70,   3.55,  99.90,   3.69,  -0.56,
10/20 17Z,   0.70,   4.79,  99.90,   4.93,  -0.56,
10/20 18Z,   0.70,   6.06,  99.90,   6.20,  -0.56,
10/20 19Z,   0.70,   7.13,  99.90,   7.27,  -0.56,
10/20 20Z,   0.70,   7.82,  99.90,   7.96,  -0.56,
10/20 21Z,   0.70,   8.11,  99.90,   8.25,  -0.56,  (max)
10/20 22Z,   0.70,   7.95,  99.90,   8.09,  -0.56,
10/20 23Z,   0.70,   7.36,  99.90,   7.50,  -0.56,
10/21 00Z,   0.70,   6.50,  99.90,   6.64,  -0.56,
10/21 01Z,   0.70,   5.68,  99.90,   5.82,  -0.56,
10/21 02Z,   0.70,   5.12,  99.90,   5.26,  -0.56,
10/21 03Z,   0.70,   4.86,  99.90,   4.99,  -0.56,
10/21 04Z,   0.70,   4.84,  99.90,   4.98,  -0.56,  (min)
10/21 05Z,   0.70,   5.05,  99.90,   5.18,  -0.56,
10/21 06Z,   0.60,   5.35,  99.90,   5.39,  -0.56,
10/21 07Z,   0.70,   5.54,  99.90,   5.67,  -0.56,  (max)
10/21 08Z,   0.70,   5.42,  99.90,   5.56,  -0.56,
10/21 09Z,   0.60,   4.99,  99.90,   5.03,  -0.56,
10/21 10Z,   0.60,   4.31,  99.90,   4.34,  -0.56,
10/21 11Z,   0.70,   3.43,  99.90,   3.57,  -0.56,
10/21 12Z,   0.70,   2.54,  99.90,   2.68,  -0.56,