EXTRA-TROPICAL  STORM  SURGE
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Gulf of Alaska
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Surge List
Gulf of Alaska
#Ketchikan, AK : 04/22/2026 08:21:20 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 12Z,   0.00,  16.79,  16.81,  99.90,   0.02,  (max)
04/20 13Z,  -0.10,  13.53,  13.49,  99.90,   0.06,
04/20 14Z,  -0.10,   8.87,   8.83,  99.90,   0.06,
04/20 15Z,  -0.20,   3.86,   3.85,  99.90,   0.19,
04/20 16Z,  -0.20,  -0.33,  -0.27,  99.90,   0.26,
04/20 17Z,  -0.20,  -2.70,  -2.60,  99.90,   0.30,
04/20 18Z,  -0.10,  -2.79,  -2.80,  99.90,   0.09,  (min)
04/20 19Z,  -0.20,  -0.70,  -0.86,  99.90,   0.04,
04/20 20Z,  -0.30,   2.93,   2.71,  99.90,   0.08,
04/20 21Z,  -0.30,   7.18,   6.99,  99.90,   0.11,
04/20 22Z,  -0.30,  11.05,  10.95,  99.90,   0.20,
04/20 23Z,  -0.30,  13.70,  13.68,  99.90,   0.28,
04/21 00Z,  -0.10,  14.57,  14.51,  99.90,   0.04,  (max)
04/21 01Z,  -0.20,  13.54,  13.38,  99.90,   0.04,
04/21 02Z,  -0.30,  10.98,  10.78,  99.90,   0.10,
04/21 03Z,  -0.30,   7.69,   7.52,  99.90,   0.13,
04/21 04Z,  -0.30,   4.73,   4.61,  99.90,   0.18,
04/21 05Z,  -0.30,   3.01,   3.02,  99.90,   0.31,  (min)
04/21 06Z,  -0.20,   3.05,   3.13,  99.90,   0.28,
04/21 07Z,  -0.30,   4.86,   4.94,  99.90,   0.38,
04/21 08Z,  -0.40,   7.93,   8.00,  99.90,   0.47,
04/21 09Z,  -0.40,  11.49,  11.48,  99.90,   0.39,
04/21 10Z,  -0.40,  14.68,  14.61,  99.90,   0.33,
04/21 11Z,  -0.30,  16.73,  16.64,  99.90,   0.21,
04/21 12Z,  -0.20,  17.09,  17.00,  99.90,   0.11,  (max)
04/21 13Z,  -0.20,  15.52,  15.35,  99.90,   0.03,
04/21 14Z,  -0.30,  12.25,  11.97,  99.90,   0.02,
04/21 15Z,  -0.40,   7.90,   7.67,  99.90,   0.17,
04/21 16Z,  -0.40,   3.46,   3.25,  99.90,   0.19,
04/21 17Z,  -0.40,  -0.06,  -0.20,  99.90,   0.26,
04/21 18Z,  -0.30,  -1.88,  -2.00,  99.90,   0.18,  (min)
04/21 19Z,  -0.30,  -1.68,  -1.85,  99.90,   0.13,
04/21 20Z,  -0.30,   0.37,   0.05,  99.90,  -0.02,
04/21 21Z,  -0.40,   3.67,   3.40,  99.90,   0.13,
04/21 22Z,  -0.40,   7.41,   7.12,  99.90,   0.11,
04/21 23Z,  -0.40,  10.72,  10.43,  99.90,   0.11,
04/22 00Z,  -0.20,  12.90,  12.59,  99.90,  -0.11,
04/22 01Z,  -0.20,  13.52,  13.15,  99.90,  -0.17,  (max)
04/22 02Z,  -0.30,  12.51,  12.12,  99.90,  -0.09,
04/22 03Z,  -0.40,  10.28,   9.90,  99.90,   0.02,
04/22 04Z,  -0.40,   7.56,   7.21,  99.90,   0.05,
04/22 05Z,  -0.50,   5.23,   4.90,  99.90,   0.17,
04/22 06Z,  -0.50,   4.00,   3.76,  99.90,   0.26,  (min)
04/22 07Z,  -0.50,   4.26,   4.04,  99.90,   0.28,
04/22 08Z,  -0.40,   5.93,   5.66,  99.90,   0.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/22 09Z,  -0.40,   8.57,  99.90,   8.30,   0.13,
04/22 10Z,  -0.40,  11.54,  99.90,  11.27,   0.13,
04/22 11Z,  -0.40,  14.11,  99.90,  13.84,   0.13,
04/22 12Z,  -0.40,  15.67,  99.90,  15.40,   0.13,
04/22 13Z,  -0.40,  15.76,  99.90,  15.49,   0.13,  (max)
04/22 14Z,  -0.50,  14.24,  99.90,  13.86,   0.13,
04/22 15Z,  -0.50,  11.31,  99.90,  10.93,   0.12,
04/22 16Z,  -0.50,   7.55,  99.90,   7.17,   0.12,
04/22 17Z,  -0.50,   3.78,  99.90,   3.40,   0.12,
04/22 18Z,  -0.50,   0.83,  99.90,   0.45,   0.12,
04/22 19Z,  -0.60,  -0.68,  99.90,  -1.16,   0.12,  (min)
04/22 20Z,  -0.60,  -0.48,  99.90,  -0.96,   0.12,
04/22 21Z,  -0.60,   1.26,  99.90,   0.77,   0.12,
04/22 22Z,  -0.60,   4.05,  99.90,   3.57,   0.12,
04/22 23Z,  -0.60,   7.22,  99.90,   6.74,   0.12,
04/23 00Z,  -0.60,  10.06,  99.90,   9.58,   0.12,
04/23 01Z,  -0.60,  11.96,  99.90,  11.48,   0.12,
04/23 02Z,  -0.60,  12.57,  99.90,  12.09,   0.12,  (max)
04/23 03Z,  -0.60,  11.84,  99.90,  11.36,   0.12,
04/23 04Z,  -0.60,  10.10,  99.90,   9.62,   0.12,
04/23 05Z,  -0.60,   7.95,  99.90,   7.47,   0.12,
04/23 06Z,  -0.70,   6.07,  99.90,   5.49,   0.12,
04/23 07Z,  -0.70,   5.03,  99.90,   4.45,   0.12,  (min)
04/23 08Z,  -0.70,   5.16,  99.90,   4.58,   0.12,
04/23 09Z,  -0.70,   6.40,  99.90,   5.82,   0.12,
04/23 10Z,  -0.60,   8.45,  99.90,   7.97,   0.12,
04/23 11Z,  -0.60,  10.81,  99.90,  10.33,   0.12,
04/23 12Z,  -0.60,  12.91,  99.90,  12.43,   0.12,
04/23 13Z,  -0.60,  14.23,  99.90,  13.75,   0.12,
04/23 14Z,  -0.60,  14.38,  99.90,  13.90,   0.12,  (max)
04/23 15Z,  -0.60,  13.22,  99.90,  12.74,   0.12,
04/23 16Z,  -0.70,  10.87,  99.90,  10.29,   0.12,
04/23 17Z,  -0.70,   7.79,  99.90,   7.20,   0.12,
04/23 18Z,  -0.70,   4.60,  99.90,   4.02,   0.12,
04/23 19Z,  -0.80,   2.00,  99.90,   1.32,   0.12,
04/23 20Z,  -0.80,   0.54,  99.90,  -0.14,   0.12,
04/23 21Z,  -0.80,   0.49,  99.90,  -0.19,   0.12,  (min)
04/23 22Z,  -0.70,   1.78,  99.90,   1.19,   0.12,
04/23 23Z,  -0.70,   4.05,  99.90,   3.47,   0.12,
04/24 00Z,  -0.60,   6.77,  99.90,   6.29,   0.12,
04/24 01Z,  -0.60,   9.34,  99.90,   8.86,   0.12,
04/24 02Z,  -0.60,  11.22,  99.90,  10.74,   0.12,
04/24 03Z,  -0.60,  12.04,  99.90,  11.56,   0.12,  (max)
04/24 04Z,  -0.60,  11.73,  99.90,  11.25,   0.12,
04/24 05Z,  -0.70,  10.46,  99.90,   9.88,   0.12,
04/24 06Z,  -0.80,   8.69,  99.90,   8.01,   0.12,
04/24 07Z,  -0.80,   6.97,  99.90,   6.28,   0.12,
04/24 08Z,  -0.90,   5.79,  99.90,   5.01,   0.12,
04/24 09Z,  -0.90,   5.50,  99.90,   4.72,   0.12,  (min)
04/24 10Z,  -0.90,   6.17,  99.90,   5.38,   0.12,
04/24 11Z,  -0.80,   7.62,  99.90,   6.94,   0.12,
04/24 12Z,  -0.80,   9.52,  99.90,   8.84,   0.12,
04/24 13Z,  -0.70,  11.39,  99.90,  10.81,   0.12,
04/24 14Z,  -0.70,  12.77,  99.90,  12.19,   0.12,
04/24 15Z,  -0.70,  13.27,  99.90,  12.69,   0.12,  (max)
04/24 16Z,  -0.80,  12.66,  99.90,  11.97,   0.12,
04/24 17Z,  -0.90,  10.94,  99.90,  10.16,   0.12,
04/24 18Z,  -0.90,   8.42,  99.90,   7.64,   0.12,
04/24 19Z,  -0.90,   5.60,  99.90,   4.82,   0.12,
04/24 20Z,  -0.90,   3.10,  99.90,   2.32,   0.12,
04/24 21Z,  -0.90,   1.47,  99.90,   0.69,   0.12,
04/24 22Z,  -0.80,   1.06,  99.90,   0.38,   0.12,  (min)
04/24 23Z,  -0.70,   1.93,  99.90,   1.35,   0.12,
04/25 00Z,  -0.60,   3.84,  99.90,   3.36,   0.12,
04/25 01Z,  -0.60,   6.35,  99.90,   5.87,   0.12,
04/25 02Z,  -0.60,   8.90,  99.90,   8.42,   0.12,
04/25 03Z,  -0.60,  10.97,  99.90,  10.48,   0.12,
04/25 04Z,  -0.60,  12.12,  99.90,  11.64,   0.12,  (max)
04/25 05Z,  -0.70,  12.17,  99.90,  11.59,   0.12,
04/25 06Z,  -0.70,  11.19,  99.90,  10.61,   0.12,
04/25 07Z,  -0.80,   9.50,  99.90,   8.82,   0.12,
04/25 08Z,  -0.80,   7.60,  99.90,   6.92,   0.12,
04/25 09Z,  -0.80,   6.01,  99.90,   5.33,   0.12,
04/25 10Z,  -0.70,   5.16,  99.90,   4.58,   0.12,  (min)
04/25 11Z,  -0.70,   5.27,  99.90,   4.68,   0.12,
04/25 12Z,  -0.60,   6.29,  99.90,   5.81,   0.12,
04/25 13Z,  -0.50,   7.98,  99.90,   7.60,   0.12,
04/25 14Z,  -0.50,   9.93,  99.90,   9.55,   0.12,
04/25 15Z,  -0.50,  11.63,  99.90,  11.25,   0.12,
04/25 16Z,  -0.50,  12.63,  99.90,  12.25,   0.12,  (max)
04/25 17Z,  -0.60,  12.58,  99.90,  12.09,   0.12,
04/25 18Z,  -0.70,  11.36,  99.90,  10.78,   0.12,
04/25 19Z,  -0.70,   9.16,  99.90,   8.58,   0.12,
04/25 20Z,  -0.70,   6.45,  99.90,   5.87,   0.12,
04/25 21Z,  -0.70,   3.83,  99.90,   3.25,   0.12,
04/25 22Z,  -0.60,   1.95,  99.90,   1.47,   0.12,
04/25 23Z,  -0.50,   1.24,  99.90,   0.86,   0.12,  (min)
04/26 00Z,  -0.40,   1.87,  99.90,   1.59,   0.12,