EXTRA-TROPICAL  STORM  SURGE
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hat-on
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Gulf of Alaska
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Surge List
Gulf of Alaska
#Seward, AK : 04/22/2026 14:21:04 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 18Z,   1.10,  -2.37,  -2.91,  99.90,  -1.64,
04/20 19Z,   1.10,  -1.94,  -2.58,  99.90,  -1.74,  (min)
04/20 20Z,   1.10,  -0.18,  -0.90,  99.90,  -1.82,
04/20 21Z,   1.10,   2.39,   1.83,  99.90,  -1.66,
04/20 22Z,   1.10,   5.14,   4.50,  99.90,  -1.74,
04/20 23Z,   1.10,   7.43,   6.65,  99.90,  -1.88,
04/21 00Z,   1.10,   8.76,   8.13,  99.90,  -1.73,
04/21 01Z,   1.10,   8.94,   8.30,  99.90,  -1.74,  (max)
04/21 02Z,   1.10,   8.08,   7.54,  99.90,  -1.64,
04/21 03Z,   1.00,   6.51,   5.95,  99.90,  -1.56,
04/21 04Z,   1.00,   4.69,   3.98,  99.90,  -1.71,
04/21 05Z,   0.90,   3.20,   2.65,  99.90,  -1.45,
04/21 06Z,   0.90,   2.60,   2.10,  99.90,  -1.40,  (min)
04/21 07Z,   1.00,   3.18,   2.64,  99.90,  -1.54,
04/21 08Z,   1.00,   4.81,   4.15,  99.90,  -1.66,
04/21 09Z,   1.00,   7.07,   6.52,  99.90,  -1.55,
04/21 10Z,   1.00,   9.40,   8.82,  99.90,  -1.58,
04/21 11Z,   1.00,  11.21,  10.63,  99.90,  -1.58,
04/21 12Z,   0.90,  11.99,  11.36,  99.90,  -1.53,  (max)
04/21 13Z,   0.90,  11.49,  10.81,  99.90,  -1.58,
04/21 14Z,   0.90,   9.78,   9.02,  99.90,  -1.66,
04/21 15Z,   0.90,   7.15,   6.46,  99.90,  -1.59,
04/21 16Z,   0.90,   4.09,   3.47,  99.90,  -1.52,
04/21 17Z,   0.80,   1.17,   0.49,  99.90,  -1.48,
04/21 18Z,   0.80,  -0.94,  -1.55,  99.90,  -1.41,
04/21 19Z,   0.90,  -1.77,  -2.36,  99.90,  -1.49,  (min)
04/21 20Z,   0.90,  -1.22,  -1.83,  99.90,  -1.51,
04/21 21Z,   0.90,   0.44,  -0.28,  99.90,  -1.62,
04/21 22Z,   0.90,   2.73,   2.00,  99.90,  -1.63,
04/21 23Z,   0.90,   5.11,   4.33,  99.90,  -1.68,
04/22 00Z,   0.80,   7.04,   6.23,  99.90,  -1.61,
04/22 01Z,   0.80,   8.13,   7.31,  99.90,  -1.62,
04/22 02Z,   0.80,   8.25,   7.51,  99.90,  -1.54,  (max)
04/22 03Z,   0.80,   7.53,   6.71,  99.90,  -1.62,
04/22 04Z,   0.80,   6.24,   5.49,  99.90,  -1.55,
04/22 05Z,   0.80,   4.78,   4.03,  99.90,  -1.55,
04/22 06Z,   0.80,   3.64,   2.92,  99.90,  -1.52,
04/22 07Z,   0.80,   3.30,   2.62,  99.90,  -1.48,  (min)
04/22 08Z,   0.80,   3.94,   3.28,  99.90,  -1.46,
04/22 09Z,   0.80,   5.41,   4.72,  99.90,  -1.49,
04/22 10Z,   0.80,   7.32,   6.54,  99.90,  -1.58,
04/22 11Z,   0.80,   9.22,   8.40,  99.90,  -1.62,
04/22 12Z,   0.70,  10.62,   9.86,  99.90,  -1.46,
04/22 13Z,   0.60,  11.13,  10.20,  99.90,  -1.53,  (max)
04/22 14Z,   0.60,  10.56,   9.63,  99.90,  -1.53,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/22 15Z,   0.60,   8.98,  99.90,   8.05,  -1.53,
04/22 16Z,   0.60,   6.67,  99.90,   5.74,  -1.54,
04/22 17Z,   0.50,   4.01,  99.90,   2.97,  -1.54,
04/22 18Z,   0.50,   1.51,  99.90,   0.47,  -1.54,
04/22 19Z,   0.60,  -0.28,  99.90,  -1.22,  -1.54,
04/22 20Z,   0.60,  -0.95,  99.90,  -1.90,  -1.55,  (min)
04/22 21Z,   0.70,  -0.47,  99.90,  -1.32,  -1.55,
04/22 22Z,   0.60,   0.92,  99.90,  -0.03,  -1.55,
04/22 23Z,   0.70,   2.84,  99.90,   1.99,  -1.56,
04/23 00Z,   0.70,   4.85,  99.90,   4.00,  -1.56,
04/23 01Z,   0.60,   6.52,  99.90,   5.56,  -1.56,
04/23 02Z,   0.60,   7.52,  99.90,   6.56,  -1.56,
04/23 03Z,   0.40,   7.74,  99.90,   6.58,  -1.56,  (max)
04/23 04Z,   0.60,   7.27,  99.90,   6.30,  -1.56,
04/23 05Z,   0.50,   6.29,  99.90,   5.23,  -1.56,
04/23 06Z,   0.60,   5.13,  99.90,   4.17,  -1.56,
04/23 07Z,   0.50,   4.20,  99.90,   3.14,  -1.56,
04/23 08Z,   0.50,   3.91,  99.90,   2.84,  -1.56,  (min)
04/23 09Z,   0.60,   4.38,  99.90,   3.42,  -1.56,
04/23 10Z,   0.60,   5.51,  99.90,   4.54,  -1.56,
04/23 11Z,   0.60,   6.99,  99.90,   6.03,  -1.56,
04/23 12Z,   0.50,   8.49,  99.90,   7.43,  -1.56,
04/23 13Z,   0.50,   9.63,  99.90,   8.57,  -1.56,
04/23 14Z,   0.40,  10.07,  99.90,   8.91,  -1.56,  (max)
04/23 15Z,   0.40,   9.65,  99.90,   8.48,  -1.56,
04/23 16Z,   0.40,   8.40,  99.90,   7.24,  -1.56,
04/23 17Z,   0.40,   6.51,  99.90,   5.35,  -1.56,
04/23 18Z,   0.30,   4.28,  99.90,   3.02,  -1.56,
04/23 19Z,   0.30,   2.13,  99.90,   0.86,  -1.56,
04/23 20Z,   0.30,   0.54,  99.90,  -0.72,  -1.56,
04/23 21Z,   0.40,  -0.14,  99.90,  -1.30,  -1.56,  (min)
04/23 22Z,   0.40,   0.14,  99.90,  -1.03,  -1.56,
04/23 23Z,   0.50,   1.20,  99.90,   0.13,  -1.56,
04/24 00Z,   0.50,   2.78,  99.90,   1.71,  -1.56,
04/24 01Z,   0.40,   4.54,  99.90,   3.37,  -1.56,
04/24 02Z,   0.40,   6.10,  99.90,   4.94,  -1.56,
04/24 03Z,   0.50,   7.16,  99.90,   6.10,  -1.56,
04/24 04Z,   0.40,   7.58,  99.90,   6.42,  -1.56,  (max)
04/24 05Z,   0.40,   7.37,  99.90,   6.21,  -1.56,
04/24 06Z,   0.50,   6.64,  99.90,   5.58,  -1.56,
04/24 07Z,   0.60,   5.63,  99.90,   4.67,  -1.56,
04/24 08Z,   0.40,   4.71,  99.90,   3.55,  -1.56,
04/24 09Z,   0.50,   4.25,  99.90,   3.18,  -1.56,  (min)
04/24 10Z,   0.50,   4.39,  99.90,   3.33,  -1.56,
04/24 11Z,   0.50,   5.09,  99.90,   4.02,  -1.56,
04/24 12Z,   0.40,   6.17,  99.90,   5.01,  -1.56,
04/24 13Z,   0.30,   7.41,  99.90,   6.14,  -1.56,
04/24 14Z,   0.30,   8.47,  99.90,   7.21,  -1.56,
04/24 15Z,   0.30,   9.04,  99.90,   7.78,  -1.56,  (max)
04/24 16Z,   0.30,   8.92,  99.90,   7.66,  -1.56,
04/24 17Z,   0.20,   8.09,  99.90,   6.73,  -1.56,
04/24 18Z,   0.10,   6.63,  99.90,   5.17,  -1.56,
04/24 19Z,   0.20,   4.75,  99.90,   3.38,  -1.56,
04/24 20Z,   0.20,   2.81,  99.90,   1.45,  -1.56,
04/24 21Z,   0.20,   1.29,  99.90,  -0.08,  -1.56,
04/24 22Z,   0.20,   0.49,  99.90,  -0.88,  -1.56,  (min)
04/24 23Z,   0.20,   0.52,  99.90,  -0.85,  -1.56,
04/25 00Z,   0.20,   1.30,  99.90,  -0.06,  -1.56,
04/25 01Z,   0.20,   2.68,  99.90,   1.31,  -1.56,
04/25 02Z,   0.20,   4.36,  99.90,   3.00,  -1.56,
04/25 03Z,   0.20,   5.98,  99.90,   4.61,  -1.56,
04/25 04Z,   0.30,   7.20,  99.90,   5.94,  -1.56,
04/25 05Z,   0.30,   7.83,  99.90,   6.57,  -1.56,
04/25 06Z,   0.40,   7.81,  99.90,   6.65,  -1.56,  (max)
04/25 07Z,   0.40,   7.16,  99.90,   6.00,  -1.56,
04/25 08Z,   0.50,   6.10,  99.90,   5.04,  -1.56,
04/25 09Z,   0.50,   4.98,  99.90,   3.92,  -1.56,
04/25 10Z,   0.50,   4.18,  99.90,   3.12,  -1.56,
04/25 11Z,   0.50,   3.92,  99.90,   2.86,  -1.56,  (min)
04/25 12Z,   0.50,   4.23,  99.90,   3.17,  -1.56,
04/25 13Z,   0.50,   5.05,  99.90,   3.99,  -1.56,
04/25 14Z,   0.40,   6.21,  99.90,   5.05,  -1.56,
04/25 15Z,   0.40,   7.39,  99.90,   6.23,  -1.56,
04/25 16Z,   0.30,   8.23,  99.90,   6.97,  -1.56,
04/25 17Z,   0.30,   8.49,  99.90,   7.22,  -1.56,  (max)
04/25 18Z,   0.30,   8.04,  99.90,   6.78,  -1.56,
04/25 19Z,   0.30,   6.90,  99.90,   5.64,  -1.56,
04/25 20Z,   0.30,   5.23,  99.90,   3.97,  -1.56,
04/25 21Z,   0.30,   3.37,  99.90,   2.11,  -1.56,
04/25 22Z,   0.30,   1.80,  99.90,   0.53,  -1.56,
04/25 23Z,   0.30,   0.85,  99.90,  -0.41,  -1.56,
04/26 00Z,   0.30,   0.70,  99.90,  -0.56,  -1.56,  (min)
04/26 01Z,   0.30,   1.37,  99.90,   0.10,  -1.56,
04/26 02Z,   0.20,   2.73,  99.90,   1.37,  -1.56,
04/26 03Z,   0.20,   4.51,  99.90,   3.14,  -1.56,
04/26 04Z,   0.30,   6.28,  99.90,   5.02,  -1.56,
04/26 05Z,   0.30,   7.67,  99.90,   6.41,  -1.56,
04/26 06Z,   0.40,   8.43,  99.90,   7.26,  -1.56,