EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
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Alaska
Gulf of Alaska
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Surge List
Gulf of Alaska
#Seward, AK : 05/20/2026 07:21:10 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 12Z,   0.70,  10.77,  10.34,  99.90,  -1.13,
05/18 13Z,   0.70,   7.87,   7.48,  99.90,  -1.09,
05/18 14Z,   0.60,   4.29,   3.92,  99.90,  -0.97,
05/18 15Z,   0.50,   0.74,   0.39,  99.90,  -0.85,
05/18 16Z,   0.40,  -1.97,  -2.25,  99.90,  -0.68,
05/18 17Z,   0.40,  -3.24,  -3.45,  99.90,  -0.61,  (min)
05/18 18Z,   0.60,  -2.85,  -3.15,  99.90,  -0.90,
05/18 19Z,   0.60,  -1.02,  -1.44,  99.90,  -1.02,
05/18 20Z,   0.60,   1.75,   1.25,  99.90,  -1.10,
05/18 21Z,   0.60,   4.78,   4.27,  99.90,  -1.11,
05/18 22Z,   0.60,   7.35,   6.79,  99.90,  -1.16,
05/18 23Z,   0.60,   8.91,   8.30,  99.90,  -1.21,
05/19 00Z,   0.70,   9.24,   8.62,  99.90,  -1.32,  (max)
05/19 01Z,   0.70,   8.44,   7.87,  99.90,  -1.27,
05/19 02Z,   0.70,   6.80,   6.32,  99.90,  -1.18,
05/19 03Z,   0.70,   4.84,   4.38,  99.90,  -1.16,
05/19 04Z,   0.60,   3.19,   2.76,  99.90,  -1.03,
05/19 05Z,   0.60,   2.49,   2.09,  99.90,  -1.00,  (min)
05/19 06Z,   0.80,   3.04,   2.78,  99.90,  -1.06,
05/19 07Z,   0.80,   4.74,   4.45,  99.90,  -1.09,
05/19 08Z,   0.80,   7.16,   6.83,  99.90,  -1.13,
05/19 09Z,   0.80,   9.70,   9.36,  99.90,  -1.14,
05/19 10Z,   0.80,  11.69,  11.22,  99.90,  -1.27,
05/19 11Z,   0.80,  12.55,  12.02,  99.90,  -1.33,  (max)
05/19 12Z,   0.90,  11.99,  11.52,  99.90,  -1.37,
05/19 13Z,   0.90,  10.07,   9.60,  99.90,  -1.37,
05/19 14Z,   0.70,   7.12,   6.80,  99.90,  -1.02,
05/19 15Z,   0.70,   3.64,   3.25,  99.90,  -1.09,
05/19 16Z,   0.60,   0.32,   0.06,  99.90,  -0.86,
05/19 17Z,   0.60,  -2.06,  -2.27,  99.90,  -0.81,
05/19 18Z,   0.70,  -2.99,  -3.21,  99.90,  -0.92,  (min)
05/19 19Z,   0.70,  -2.34,  -2.60,  99.90,  -0.96,
05/19 20Z,   0.70,  -0.41,  -0.65,  99.90,  -0.94,
05/19 21Z,   0.70,   2.30,   1.86,  99.90,  -1.14,
05/19 22Z,   0.60,   5.13,   4.72,  99.90,  -1.01,
05/19 23Z,   0.60,   7.44,   6.91,  99.90,  -1.13,
05/20 00Z,   0.60,   8.75,   8.16,  99.90,  -1.19,
05/20 01Z,   0.60,   8.92,   8.33,  99.90,  -1.19,  (max)
05/20 02Z,   0.60,   8.07,   7.54,  99.90,  -1.13,
05/20 03Z,   0.50,   6.49,   6.07,  99.90,  -0.92,
05/20 04Z,   0.50,   4.68,   4.25,  99.90,  -0.93,
05/20 05Z,   0.40,   3.26,   2.71,  99.90,  -0.95,
05/20 06Z,   0.50,   2.78,   2.47,  99.90,  -0.81,  (min)
05/20 07Z,   0.50,   3.46,   3.21,  99.90,  -0.75,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/20 08Z,   0.70,   5.13,  99.90,   5.06,  -0.77,
05/20 09Z,   0.50,   7.38,  99.90,   7.08,  -0.80,
05/20 10Z,   0.50,   9.64,  99.90,   9.31,  -0.83,
05/20 11Z,   0.60,  11.30,  99.90,  11.05,  -0.85,
05/20 12Z,   0.80,  11.89,  99.90,  11.80,  -0.88,  (max)
05/20 13Z,   0.70,  11.17,  99.90,  10.96,  -0.91,
05/20 14Z,   0.60,   9.26,  99.90,   8.92,  -0.93,
05/20 15Z,   0.70,   6.45,  99.90,   6.19,  -0.96,
05/20 16Z,   0.70,   3.24,  99.90,   2.95,  -0.99,
05/20 17Z,   0.70,   0.29,  99.90,  -0.03,  -1.02,
05/20 18Z,   0.60,  -1.73,  99.90,  -2.17,  -1.04,
05/20 19Z,   0.70,  -2.37,  99.90,  -2.73,  -1.07,  (min)
05/20 20Z,   0.80,  -1.59,  99.90,  -1.86,  -1.07,
05/20 21Z,   0.80,   0.30,  99.90,   0.03,  -1.07,
05/20 22Z,   0.90,   2.81,  99.90,   2.64,  -1.07,
05/20 23Z,   1.00,   5.37,  99.90,   5.30,  -1.07,
05/21 00Z,   1.10,   7.40,  99.90,   7.43,  -1.07,
05/21 01Z,   1.10,   8.52,  99.90,   8.55,  -1.07,
05/21 02Z,   1.10,   8.61,  99.90,   8.64,  -1.07,  (max)
05/21 03Z,   1.10,   7.79,  99.90,   7.82,  -1.07,
05/21 04Z,   1.10,   6.33,  99.90,   6.36,  -1.07,
05/21 05Z,   0.90,   4.70,  99.90,   4.53,  -1.07,
05/21 06Z,   1.10,   3.46,  99.90,   3.49,  -1.07,
05/21 07Z,   1.10,   3.09,  99.90,   3.12,  -1.07,  (min)
05/21 08Z,   1.00,   3.74,  99.90,   3.67,  -1.07,
05/21 09Z,   0.80,   5.23,  99.90,   4.97,  -1.07,
05/21 10Z,   0.90,   7.19,  99.90,   7.02,  -1.07,
05/21 11Z,   0.90,   9.11,  99.90,   8.94,  -1.07,
05/21 12Z,   0.80,  10.48,  99.90,  10.21,  -1.07,
05/21 13Z,   0.80,  10.90,  99.90,  10.63,  -1.07,  (max)
05/21 14Z,   0.80,  10.19,  99.90,   9.92,  -1.07,
05/21 15Z,   0.80,   8.44,  99.90,   8.17,  -1.07,
05/21 16Z,   0.80,   5.94,  99.90,   5.67,  -1.07,
05/21 17Z,   0.70,   3.12,  99.90,   2.75,  -1.07,
05/21 18Z,   0.70,   0.57,  99.90,   0.20,  -1.07,
05/21 19Z,   0.80,  -1.09,  99.90,  -1.36,  -1.07,
05/21 20Z,   0.80,  -1.53,  99.90,  -1.79,  -1.07,  (min)
05/21 21Z,   0.80,  -0.74,  99.90,  -1.01,  -1.07,
05/21 22Z,   0.80,   1.00,  99.90,   0.73,  -1.07,
05/21 23Z,   0.80,   3.26,  99.90,   2.99,  -1.07,
05/22 00Z,   0.60,   5.54,  99.90,   5.07,  -1.07,
05/22 01Z,   0.70,   7.35,  99.90,   6.98,  -1.07,
05/22 02Z,   0.60,   8.34,  99.90,   7.87,  -1.07,
05/22 03Z,   0.70,   8.42,  99.90,   8.06,  -1.07,  (max)
05/22 04Z,   0.60,   7.69,  99.90,   7.22,  -1.07,
05/22 05Z,   0.60,   6.37,  99.90,   5.90,  -1.07,
05/22 06Z,   0.60,   4.87,  99.90,   4.40,  -1.07,
05/22 07Z,   0.60,   3.72,  99.90,   3.25,  -1.07,
05/22 08Z,   0.60,   3.32,  99.90,   2.85,  -1.07,  (min)
05/22 09Z,   0.60,   3.80,  99.90,   3.33,  -1.07,
05/22 10Z,   0.70,   4.99,  99.90,   4.62,  -1.07,
05/22 11Z,   0.60,   6.59,  99.90,   6.12,  -1.07,
05/22 12Z,   0.60,   8.20,  99.90,   7.73,  -1.07,
05/22 13Z,   0.50,   9.37,  99.90,   8.80,  -1.07,
05/22 14Z,   0.50,   9.75,  99.90,   9.18,  -1.07,  (max)
05/22 15Z,   0.50,   9.18,  99.90,   8.62,  -1.07,
05/22 16Z,   0.50,   7.74,  99.90,   7.17,  -1.07,
05/22 17Z,   0.50,   5.63,  99.90,   5.06,  -1.07,
05/22 18Z,   0.50,   3.23,  99.90,   2.67,  -1.07,
05/22 19Z,   0.50,   1.08,  99.90,   0.51,  -1.07,
05/22 20Z,   0.60,  -0.30,  99.90,  -0.77,  -1.07,
05/22 21Z,   0.60,  -0.62,  99.90,  -1.09,  -1.07,  (min)
05/22 22Z,   0.60,   0.11,  99.90,  -0.36,  -1.07,
05/22 23Z,   0.60,   1.65,  99.90,   1.18,  -1.07,
05/23 00Z,   0.60,   3.67,  99.90,   3.20,  -1.07,
05/23 01Z,   0.60,   5.73,  99.90,   5.27,  -1.07,
05/23 02Z,   0.50,   7.39,  99.90,   6.82,  -1.07,
05/23 03Z,   0.50,   8.33,  99.90,   7.76,  -1.07,
05/23 04Z,   0.50,   8.45,  99.90,   7.88,  -1.07,  (max)
05/23 05Z,   0.60,   7.80,  99.90,   7.33,  -1.07,
05/23 06Z,   0.60,   6.56,  99.90,   6.09,  -1.07,
05/23 07Z,   0.60,   5.10,  99.90,   4.63,  -1.07,
05/23 08Z,   0.60,   3.91,  99.90,   3.44,  -1.07,
05/23 09Z,   0.60,   3.35,  99.90,   2.89,  -1.07,  (min)
05/23 10Z,   0.70,   3.55,  99.90,   3.18,  -1.07,
05/23 11Z,   0.60,   4.40,  99.90,   3.93,  -1.07,
05/23 12Z,   0.60,   5.68,  99.90,   5.21,  -1.07,
05/23 13Z,   0.60,   7.07,  99.90,   6.60,  -1.07,
05/23 14Z,   0.60,   8.16,  99.90,   7.69,  -1.07,
05/23 15Z,   0.60,   8.63,  99.90,   8.16,  -1.07,  (max)
05/23 16Z,   0.60,   8.32,  99.90,   7.85,  -1.07,
05/23 17Z,   0.70,   7.23,  99.90,   6.86,  -1.07,
05/23 18Z,   0.70,   5.53,  99.90,   5.16,  -1.07,
05/23 19Z,   0.70,   3.53,  99.90,   3.16,  -1.07,
05/23 20Z,   0.70,   1.70,  99.90,   1.33,  -1.07,
05/23 21Z,   0.70,   0.53,  99.90,   0.16,  -1.07,
05/23 22Z,   0.80,   0.25,  99.90,  -0.02,  -1.07,  (min)
05/23 23Z,   0.80,   0.88,  99.90,   0.61,  -1.07,
05/24 00Z,   0.80,   2.26,  99.90,   1.99,  -1.07,