EXTRA-TROPICAL  STORM  SURGE
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hat-on
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Alaska
Gulf of Alaska
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Surge List
Gulf of Alaska
#Ketchikan, AK : 04/18/2026 09:21:09 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/16 18Z,  -0.30,   8.27,   7.72,  99.90,  -0.25,
04/16 19Z,  -0.40,  12.19,  11.58,  99.90,  -0.21,
04/16 20Z,  -0.40,  14.85,  14.35,  99.90,  -0.10,
04/16 21Z,  -0.40,  15.63,  15.20,  99.90,  -0.03,  (max)
04/16 22Z,  -0.40,  14.33,  13.91,  99.90,  -0.02,
04/16 23Z,  -0.40,  11.28,  10.84,  99.90,  -0.04,
04/17 00Z,  -0.30,   7.27,   6.76,  99.90,  -0.21,
04/17 01Z,  -0.30,   3.43,   2.88,  99.90,  -0.25,
04/17 02Z,  -0.40,   0.84,   0.28,  99.90,  -0.16,
04/17 03Z,  -0.40,   0.24,  -0.30,  99.90,  -0.14,  (min)
04/17 04Z,  -0.50,   1.82,   1.33,  99.90,   0.01,
04/17 05Z,  -0.50,   5.14,   4.64,  99.90,  -0.00,
04/17 06Z,  -0.40,   9.36,   8.92,  99.90,  -0.04,
04/17 07Z,  -0.50,  13.44,  13.00,  99.90,   0.06,
04/17 08Z,  -0.60,  16.39,  16.03,  99.90,   0.24,
04/17 09Z,  -0.60,  17.48,  17.16,  99.90,   0.28,  (max)
04/17 10Z,  -0.60,  16.35,  15.97,  99.90,   0.22,
04/17 11Z,  -0.50,  13.13,  12.68,  99.90,   0.05,
04/17 12Z,  -0.50,   8.50,   7.95,  99.90,  -0.05,
04/17 13Z,  -0.50,   3.56,   3.03,  99.90,  -0.03,
04/17 14Z,  -0.50,  -0.45,  -0.91,  99.90,   0.04,
04/17 15Z,  -0.50,  -2.49,  -2.87,  99.90,   0.12,  (min)
04/17 16Z,  -0.50,  -2.10,  -2.48,  99.90,   0.12,
04/17 17Z,  -0.50,   0.55,   0.07,  99.90,   0.02,
04/17 18Z,  -0.50,   4.71,   4.14,  99.90,  -0.07,
04/17 19Z,  -0.50,   9.30,   8.67,  99.90,  -0.13,
04/17 20Z,  -0.50,  13.23,  12.68,  99.90,  -0.05,
04/17 21Z,  -0.50,  15.58,  15.11,  99.90,   0.03,
04/17 22Z,  -0.40,  15.82,  15.46,  99.90,   0.04,  (max)
04/17 23Z,  -0.40,  13.91,  13.55,  99.90,   0.04,
04/18 00Z,  -0.30,  10.37,  10.03,  99.90,  -0.04,
04/18 01Z,  -0.30,   6.19,   5.77,  99.90,  -0.12,
04/18 02Z,  -0.30,   2.57,   2.18,  99.90,  -0.09,
04/18 03Z,  -0.30,   0.60,   0.28,  99.90,  -0.02,  (min)
04/18 04Z,  -0.30,   0.84,   0.64,  99.90,   0.10,
04/18 05Z,  -0.30,   3.23,   3.14,  99.90,   0.21,
04/18 06Z,  -0.30,   7.13,   7.13,  99.90,   0.30,
04/18 07Z,  -0.30,  11.53,  11.59,  99.90,   0.36,
04/18 08Z,  -0.30,  15.38,  15.40,  99.90,   0.32,
04/18 09Z,  -0.30,  17.74,  17.73,  99.90,   0.29,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/18 10Z,  -0.20,  17.97,  99.90,  18.05,   0.28,  (max)
04/18 11Z,  -0.20,  15.88,  99.90,  15.95,   0.26,
04/18 12Z,  -0.20,  11.82,  99.90,  11.86,   0.25,
04/18 13Z,  -0.20,   6.64,  99.90,   6.68,   0.23,
04/18 14Z,  -0.20,   1.61,  99.90,   1.62,   0.22,
04/18 15Z,  -0.20,  -2.04,  99.90,  -2.04,   0.20,
04/18 16Z,  -0.20,  -3.40,  99.90,  -3.41,   0.19,  (min)
04/18 17Z,  -0.20,  -2.22,  99.90,  -2.25,   0.17,
04/18 18Z,  -0.20,   1.09,  99.90,   1.05,   0.16,
04/18 19Z,  -0.20,   5.63,  99.90,   5.57,   0.14,
04/18 20Z,  -0.20,  10.26,  99.90,  10.19,   0.13,
04/18 21Z,  -0.10,  13.92,  99.90,  13.93,   0.11,
04/18 22Z,  -0.10,  15.78,  99.90,  15.80,   0.11,  (max)
04/18 23Z,  -0.10,  15.46,  99.90,  15.47,   0.11,
04/19 00Z,  -0.10,  13.07,  99.90,  13.08,   0.11,
04/19 01Z,  -0.10,   9.30,  99.90,   9.31,   0.11,
04/19 02Z,   0.00,   5.27,  99.90,   5.38,   0.11,
04/19 03Z,   0.00,   2.17,  99.90,   2.29,   0.11,
04/19 04Z,   0.00,   0.96,  99.90,   1.07,   0.11,  (min)
04/19 05Z,   0.00,   1.98,  99.90,   2.10,   0.11,
04/19 06Z,  -0.10,   4.95,  99.90,   4.97,   0.11,
04/19 07Z,  -0.20,   9.08,  99.90,   8.99,   0.11,
04/19 08Z,  -0.20,  13.33,  99.90,  13.24,   0.11,
04/19 09Z,  -0.20,  16.67,  99.90,  16.58,   0.11,
04/19 10Z,  -0.10,  18.29,  99.90,  18.30,   0.11,  (max)
04/19 11Z,  -0.10,  17.69,  99.90,  17.70,   0.11,
04/19 12Z,   0.00,  14.85,  99.90,  14.96,   0.11,
04/19 13Z,   0.00,  10.28,  99.90,  10.39,   0.11,
04/19 14Z,   0.00,   4.98,  99.90,   5.09,   0.11,
04/19 15Z,   0.00,   0.23,  99.90,   0.35,   0.11,
04/19 16Z,  -0.10,  -2.81,  99.90,  -2.80,   0.11,
04/19 17Z,  -0.10,  -3.46,  99.90,  -3.45,   0.11,  (min)
04/19 18Z,  -0.20,  -1.67,  99.90,  -1.76,   0.11,
04/19 19Z,  -0.30,   1.98,  99.90,   1.79,   0.11,
04/19 20Z,  -0.40,   6.53,  99.90,   6.25,   0.11,
04/19 21Z,  -0.40,  10.89,  99.90,  10.61,   0.11,
04/19 22Z,  -0.40,  14.08,  99.90,  13.80,   0.11,
04/19 23Z,  -0.30,  15.41,  99.90,  15.23,   0.11,  (max)
04/20 00Z,  -0.20,  14.62,  99.90,  14.54,   0.11,
04/20 01Z,  -0.10,  12.00,  99.90,  12.01,   0.11,
04/20 02Z,   0.00,   8.33,  99.90,   8.44,   0.11,
04/20 03Z,   0.00,   4.74,  99.90,   4.85,   0.11,
04/20 04Z,   0.00,   2.33,  99.90,   2.45,   0.11,
04/20 05Z,  -0.10,   1.85,  99.90,   1.86,   0.11,  (min)
04/20 06Z,  -0.20,   3.43,  99.90,   3.34,   0.11,
04/20 07Z,  -0.20,   6.64,  99.90,   6.55,   0.11,
04/20 08Z,  -0.30,  10.63,  99.90,  10.44,   0.11,
04/20 09Z,  -0.30,  14.43,  99.90,  14.24,   0.11,
04/20 10Z,  -0.30,  17.12,  99.90,  16.94,   0.11,
04/20 11Z,  -0.20,  18.02,  99.90,  17.94,   0.11,  (max)
04/20 12Z,  -0.10,  16.79,  99.90,  16.80,   0.11,
04/20 13Z,   0.00,  13.53,  99.90,  13.64,   0.11,
04/20 14Z,   0.00,   8.87,  99.90,   8.98,   0.11,
04/20 15Z,   0.00,   3.86,  99.90,   3.97,   0.11,
04/20 16Z,  -0.10,  -0.33,  99.90,  -0.32,   0.11,
04/20 17Z,  -0.20,  -2.70,  99.90,  -2.79,   0.11,
04/20 18Z,  -0.30,  -2.79,  99.90,  -2.97,   0.11,  (min)
04/20 19Z,  -0.30,  -0.70,  99.90,  -0.88,   0.11,
04/20 20Z,  -0.40,   2.93,  99.90,   2.64,   0.11,
04/20 21Z,  -0.40,   7.18,  99.90,   6.89,   0.11,
04/20 22Z,  -0.40,  11.05,  99.90,  10.76,   0.11,
04/20 23Z,  -0.30,  13.70,  99.90,  13.51,   0.11,
04/21 00Z,  -0.20,  14.57,  99.90,  14.49,   0.11,  (max)
04/21 01Z,  -0.10,  13.54,  99.90,  13.55,   0.11,
04/21 02Z,   0.00,  10.98,  99.90,  11.09,   0.11,
04/21 03Z,  -0.10,   7.69,  99.90,   7.71,   0.11,
04/21 04Z,  -0.20,   4.73,  99.90,   4.64,   0.11,
04/21 05Z,  -0.30,   3.01,  99.90,   2.82,   0.11,
04/21 06Z,  -0.40,   3.05,  99.90,   2.76,   0.11,  (min)
04/21 07Z,  -0.50,   4.86,  99.90,   4.47,   0.11,
04/21 08Z,  -0.50,   7.93,  99.90,   7.54,   0.11,
04/21 09Z,  -0.40,  11.49,  99.90,  11.20,   0.11,
04/21 10Z,  -0.30,  14.68,  99.90,  14.50,   0.11,
04/21 11Z,  -0.20,  16.73,  99.90,  16.65,   0.11,
04/21 12Z,  -0.10,  17.09,  99.90,  17.10,   0.11,  (max)
04/21 13Z,  -0.10,  15.52,  99.90,  15.54,   0.11,
04/21 14Z,  -0.10,  12.25,  99.90,  12.26,   0.11,
04/21 15Z,  -0.10,   7.90,  99.90,   7.92,   0.11,
04/21 16Z,  -0.20,   3.46,  99.90,   3.37,   0.11,
04/21 17Z,  -0.30,  -0.06,  99.90,  -0.25,   0.11,
04/21 18Z,  -0.40,  -1.88,  99.90,  -2.17,   0.11,  (min)
04/21 19Z,  -0.40,  -1.68,  99.90,  -1.96,   0.11,
04/21 20Z,  -0.40,   0.37,  99.90,   0.09,   0.11,
04/21 21Z,  -0.40,   3.67,  99.90,   3.39,   0.11,
04/21 22Z,  -0.40,   7.41,  99.90,   7.12,   0.11,
04/21 23Z,  -0.30,  10.72,  99.90,  10.53,   0.11,
04/22 00Z,  -0.20,  12.90,  99.90,  12.82,   0.11,
04/22 01Z,  99.90,  13.52,  99.90,  99.90,   0.11,
04/22 02Z,  99.90,  12.51,  99.90,  99.90,   0.11,
04/22 03Z,  99.90,  10.28,  99.90,  99.90,   0.11,
04/22 04Z,  99.90,   7.56,  99.90,  99.90,   0.11,
04/22 05Z,  99.90,   5.23,  99.90,  99.90,   0.11,
04/22 06Z,  99.90,   4.00,  99.90,  99.90,   0.11,