EXTRA-TROPICAL  STORM  SURGE
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Gulf of Alaska
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Surge List
Gulf of Alaska
#Ketchikan, AK : 04/21/2026 09:21:07 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/19 18Z,  -0.20,  -1.67,  -1.73,  99.90,   0.14,  (min)
04/19 19Z,  -0.20,   1.98,   1.78,  99.90,  -0.00,
04/19 20Z,  -0.20,   6.53,   6.34,  99.90,   0.01,
04/19 21Z,  -0.20,  10.89,  10.70,  99.90,   0.01,
04/19 22Z,  -0.20,  14.08,  13.93,  99.90,   0.05,
04/19 23Z,  -0.20,  15.41,  15.34,  99.90,   0.13,  (max)
04/20 00Z,  -0.20,  14.62,  14.53,  99.90,   0.11,
04/20 01Z,  -0.10,  12.00,  11.93,  99.90,   0.03,
04/20 02Z,  -0.10,   8.33,   8.22,  99.90,  -0.01,
04/20 03Z,  -0.10,   4.74,   4.68,  99.90,   0.04,
04/20 04Z,   0.00,   2.33,   2.41,  99.90,   0.08,
04/20 05Z,  -0.10,   1.85,   2.08,  99.90,   0.33,  (min)
04/20 06Z,   0.00,   3.43,   3.76,  99.90,   0.33,
04/20 07Z,  -0.10,   6.64,   6.97,  99.90,   0.43,
04/20 08Z,  -0.10,  10.63,  10.88,  99.90,   0.35,
04/20 09Z,  -0.10,  14.43,  14.56,  99.90,   0.23,
04/20 10Z,  -0.10,  17.12,  17.25,  99.90,   0.23,
04/20 11Z,  -0.10,  18.02,  18.08,  99.90,   0.16,  (max)
04/20 12Z,   0.00,  16.79,  16.81,  99.90,   0.02,
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,  -0.30,   3.05,   3.13,  99.90,   0.38,
04/21 07Z,  -0.30,   4.86,   4.94,  99.90,   0.38,
04/21 08Z,  -0.30,   7.93,   8.00,  99.90,   0.37,
04/21 09Z,  -0.30,  11.49,  11.48,  99.90,   0.29,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 10Z,  -0.20,  14.68,  99.90,  14.76,   0.27,
04/21 11Z,  -0.20,  16.73,  99.90,  16.79,   0.26,
04/21 12Z,  -0.30,  17.09,  99.90,  17.03,   0.24,  (max)
04/21 13Z,  -0.30,  15.52,  99.90,  15.45,   0.23,
04/21 14Z,  -0.30,  12.25,  99.90,  12.16,   0.21,
04/21 15Z,  -0.30,   7.90,  99.90,   7.80,   0.20,
04/21 16Z,  -0.30,   3.46,  99.90,   3.34,   0.18,
04/21 17Z,  -0.30,  -0.06,  99.90,  -0.20,   0.16,
04/21 18Z,  -0.30,  -1.88,  99.90,  -2.03,   0.15,  (min)
04/21 19Z,  -0.30,  -1.68,  99.90,  -1.84,   0.13,
04/21 20Z,  -0.20,   0.37,  99.90,   0.29,   0.12,
04/21 21Z,  -0.20,   3.67,  99.90,   3.58,   0.10,
04/21 22Z,  -0.20,   7.41,  99.90,   7.31,   0.10,
04/21 23Z,  -0.20,  10.72,  99.90,  10.62,   0.10,
04/22 00Z,  -0.20,  12.90,  99.90,  12.81,   0.10,
04/22 01Z,  -0.20,  13.52,  99.90,  13.42,   0.10,  (max)
04/22 02Z,  -0.20,  12.51,  99.90,  12.41,   0.10,
04/22 03Z,  -0.30,  10.28,  99.90,  10.08,   0.10,
04/22 04Z,  -0.40,   7.56,  99.90,   7.27,   0.10,
04/22 05Z,  -0.40,   5.23,  99.90,   4.93,   0.10,
04/22 06Z,  -0.40,   4.00,  99.90,   3.70,   0.10,  (min)
04/22 07Z,  -0.50,   4.26,  99.90,   3.86,   0.10,
04/22 08Z,  -0.50,   5.93,  99.90,   5.53,   0.10,
04/22 09Z,  -0.50,   8.57,  99.90,   8.18,   0.10,
04/22 10Z,  -0.50,  11.54,  99.90,  11.14,   0.10,
04/22 11Z,  -0.40,  14.11,  99.90,  13.82,   0.10,
04/22 12Z,  -0.40,  15.67,  99.90,  15.37,   0.10,
04/22 13Z,  -0.30,  15.76,  99.90,  15.56,   0.10,  (max)
04/22 14Z,  -0.30,  14.24,  99.90,  14.04,   0.10,
04/22 15Z,  -0.30,  11.31,  99.90,  11.11,   0.10,
04/22 16Z,  -0.40,   7.55,  99.90,   7.25,   0.10,
04/22 17Z,  -0.40,   3.78,  99.90,   3.48,   0.10,
04/22 18Z,  -0.50,   0.83,  99.90,   0.43,   0.10,
04/22 19Z,  -0.60,  -0.68,  99.90,  -1.17,   0.10,  (min)
04/22 20Z,  -0.60,  -0.48,  99.90,  -0.98,   0.10,
04/22 21Z,  -0.70,   1.26,  99.90,   0.66,   0.10,
04/22 22Z,  -0.70,   4.05,  99.90,   3.45,   0.10,
04/22 23Z,  -0.60,   7.22,  99.90,   6.72,   0.10,
04/23 00Z,  -0.60,  10.06,  99.90,   9.56,   0.10,
04/23 01Z,  -0.60,  11.96,  99.90,  11.46,   0.10,
04/23 02Z,  -0.50,  12.57,  99.90,  12.17,   0.10,  (max)
04/23 03Z,  -0.50,  11.84,  99.90,  11.44,   0.10,
04/23 04Z,  -0.50,  10.10,  99.90,   9.71,   0.10,
04/23 05Z,  -0.60,   7.95,  99.90,   7.45,   0.10,
04/23 06Z,  -0.60,   6.07,  99.90,   5.57,   0.10,
04/23 07Z,  -0.60,   5.03,  99.90,   4.54,   0.10,  (min)
04/23 08Z,  -0.70,   5.16,  99.90,   4.56,   0.10,
04/23 09Z,  -0.70,   6.40,  99.90,   5.81,   0.10,
04/23 10Z,  -0.70,   8.45,  99.90,   7.86,   0.10,
04/23 11Z,  -0.70,  10.81,  99.90,  10.21,   0.10,
04/23 12Z,  -0.70,  12.91,  99.90,  12.31,   0.10,
04/23 13Z,  -0.70,  14.23,  99.90,  13.63,   0.10,
04/23 14Z,  -0.70,  14.38,  99.90,  13.79,   0.10,  (max)
04/23 15Z,  -0.70,  13.22,  99.90,  12.62,   0.10,
04/23 16Z,  -0.70,  10.87,  99.90,  10.28,   0.10,
04/23 17Z,  -0.80,   7.79,  99.90,   7.09,   0.10,
04/23 18Z,  -0.80,   4.60,  99.90,   3.90,   0.10,
04/23 19Z,  -0.80,   2.00,  99.90,   1.31,   0.10,
04/23 20Z,  -0.80,   0.54,  99.90,  -0.15,   0.10,
04/23 21Z,  -0.80,   0.49,  99.90,  -0.21,   0.10,  (min)
04/23 22Z,  -0.70,   1.78,  99.90,   1.18,   0.10,
04/23 23Z,  -0.60,   4.05,  99.90,   3.55,   0.10,
04/24 00Z,  -0.60,   6.77,  99.90,   6.28,   0.10,
04/24 01Z,  -0.50,   9.34,  99.90,   8.94,   0.10,
04/24 02Z,  -0.50,  11.22,  99.90,  10.82,   0.10,
04/24 03Z,  -0.60,  12.04,  99.90,  11.55,   0.10,  (max)
04/24 04Z,  -0.60,  11.73,  99.90,  11.23,   0.10,
04/24 05Z,  -0.70,  10.46,  99.90,   9.87,   0.10,
04/24 06Z,  -0.80,   8.69,  99.90,   8.00,   0.10,
04/24 07Z,  -0.80,   6.97,  99.90,   6.27,   0.10,
04/24 08Z,  -0.90,   5.79,  99.90,   4.99,   0.10,
04/24 09Z,  -0.80,   5.50,  99.90,   4.80,   0.10,  (min)
04/24 10Z,  -0.80,   6.17,  99.90,   5.47,   0.10,
04/24 11Z,  -0.70,   7.62,  99.90,   7.03,   0.10,
04/24 12Z,  -0.60,   9.52,  99.90,   9.02,   0.10,
04/24 13Z,  -0.60,  11.39,  99.90,  10.89,   0.10,
04/24 14Z,  -0.60,  12.77,  99.90,  12.27,   0.10,
04/24 15Z,  -0.60,  13.27,  99.90,  12.77,   0.10,  (max)
04/24 16Z,  -0.70,  12.66,  99.90,  12.06,   0.10,
04/24 17Z,  -0.80,  10.94,  99.90,  10.25,   0.10,
04/24 18Z,  -0.90,   8.42,  99.90,   7.62,   0.10,
04/24 19Z,  -0.90,   5.60,  99.90,   4.80,   0.10,
04/24 20Z,  -0.90,   3.10,  99.90,   2.30,   0.10,
04/24 21Z,  -0.90,   1.47,  99.90,   0.68,   0.10,
04/24 22Z,  -0.80,   1.06,  99.90,   0.37,   0.10,  (min)
04/24 23Z,  -0.70,   1.93,  99.90,   1.33,   0.10,
04/25 00Z,  -0.60,   3.84,  99.90,   3.34,   0.10,
04/25 01Z,  99.90,   6.35,  99.90,  99.90,   0.10,
04/25 02Z,  99.90,   8.90,  99.90,  99.90,   0.10,
04/25 03Z,  99.90,  10.97,  99.90,  99.90,   0.10,
04/25 04Z,  99.90,  12.12,  99.90,  99.90,   0.10,
04/25 05Z,  99.90,  12.17,  99.90,  99.90,   0.10,
04/25 06Z,  99.90,  11.19,  99.90,  99.90,   0.10,