EXTRA-TROPICAL  STORM  SURGE
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Manual
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hat-on
mhhw-on
msl-on
mllw-on
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Alaska
Gulf of Alaska
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Surge List
#Anchorage, AK : 04/17/2026 05:22:45 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/15 12Z,   0.00,  20.34,  20.54,  99.90,   0.20,
04/15 13Z,   0.00,  25.56,  25.57,  99.90,   0.01,
04/15 14Z,   0.00,  28.85,  28.86,  99.90,   0.01,  (max)
04/15 15Z,   0.00,  29.02,  28.84,  99.90,  -0.18,
04/15 16Z,   0.00,  26.27,  25.14,  99.90,  -1.13,
04/15 17Z,   0.00,  21.62,  19.93,  99.90,  -1.69,
04/15 18Z,   0.00,  16.15,  14.79,  99.90,  -1.36,
04/15 19Z,   0.00,  10.66,   9.82,  99.90,  -0.84,
04/15 20Z,   0.00,   5.40,   5.07,  99.90,  -0.33,
04/15 21Z,   0.00,   2.13,   1.15,  99.90,  -0.98,  (min)
04/15 22Z,   0.00,   3.82,   1.69,  99.90,  -2.13,
04/15 23Z,   0.00,  10.00,  99.90,  99.90,  99.90,
04/16 00Z,   0.00,  17.11,  99.90,  99.90,  99.90,
04/16 01Z,   0.00,  23.21,  99.90,  99.90,  99.90,
04/16 02Z,   0.00,  27.61,  99.90,  99.90,  99.90,
04/16 03Z,   0.00,  29.01,  28.92,  99.90,  -0.09,  (max)
04/16 04Z,   0.00,  27.05,  26.13,  99.90,  -0.92,
04/16 05Z,   0.00,  22.75,  21.21,  99.90,  -1.54,
04/16 06Z,   0.00,  17.33,  15.91,  99.90,  -1.42,
04/16 07Z,   0.00,  11.92,  10.90,  99.90,  -1.02,
04/16 08Z,   0.00,   6.97,   5.99,  99.90,  -0.98,
04/16 09Z,   0.00,   3.35,   1.72,  99.90,  -1.63,
04/16 10Z,   0.00,   3.86,   0.59,  99.90,  -3.27,  (min)
04/16 11Z,   0.00,   9.63,   9.59,  99.90,  -0.04,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/16 12Z,  -0.10,  17.45,  99.90,  17.26,  -0.09,
04/16 13Z,   0.00,  24.07,  99.90,  23.94,  -0.14,
04/16 14Z,   0.00,  28.69,  99.90,  28.51,  -0.19,
04/16 15Z,  -0.10,  30.55,  99.90,  30.22,  -0.24,  (max)
04/16 16Z,  -0.10,  29.06,  99.90,  28.67,  -0.29,
04/16 17Z,  -0.10,  25.02,  99.90,  24.58,  -0.34,
04/16 18Z,  -0.20,  19.57,  99.90,  18.99,  -0.39,
04/16 19Z,  -0.20,  13.66,  99.90,  13.03,  -0.43,
04/16 20Z,  -0.20,   7.88,  99.90,   7.20,  -0.48,
04/16 21Z,  -0.30,   2.67,  99.90,   1.83,  -0.53,
04/16 22Z,  -0.30,   0.39,  99.90,  -0.49,  -0.58,  (min)
04/16 23Z,  -0.40,   3.85,  99.90,   2.81,  -0.63,
04/17 00Z,  -0.40,  11.56,  99.90,  10.53,  -0.63,
04/17 01Z,  -0.40,  19.50,  99.90,  18.47,  -0.63,
04/17 02Z,  -0.40,  25.73,  99.90,  24.69,  -0.63,
04/17 03Z,  -0.40,  29.48,  99.90,  28.44,  -0.63,
04/17 04Z,  -0.40,  29.74,  99.90,  28.71,  -0.63,  (max)
04/17 05Z,  -0.40,  26.80,  99.90,  25.77,  -0.63,
04/17 06Z,  -0.40,  21.89,  99.90,  20.86,  -0.63,
04/17 07Z,  -0.40,  16.20,  99.90,  15.17,  -0.63,
04/17 08Z,  -0.40,  10.72,  99.90,   9.69,  -0.63,
04/17 09Z,  -0.40,   5.93,  99.90,   4.90,  -0.63,
04/17 10Z,  -0.40,   3.22,  99.90,   2.19,  -0.63,  (min)
04/17 11Z,  -0.30,   5.52,  99.90,   4.59,  -0.63,
04/17 12Z,  -0.30,  12.98,  99.90,  12.05,  -0.63,
04/17 13Z,  -0.20,  21.47,  99.90,  20.64,  -0.63,
04/17 14Z,  -0.20,  27.75,  99.90,  26.92,  -0.63,
04/17 15Z,  -0.20,  31.16,  99.90,  30.33,  -0.63,
04/17 16Z,  -0.20,  31.26,  99.90,  30.43,  -0.63,  (max)
04/17 17Z,  -0.20,  28.14,  99.90,  27.31,  -0.63,
04/17 18Z,  -0.20,  23.05,  99.90,  22.22,  -0.63,
04/17 19Z,  -0.20,  17.04,  99.90,  16.21,  -0.63,
04/17 20Z,  -0.20,  10.88,  99.90,  10.04,  -0.63,
04/17 21Z,  -0.20,   5.03,  99.90,   4.20,  -0.63,
04/17 22Z,  -0.20,   0.27,  99.90,  -0.56,  -0.63,
04/17 23Z,  -0.10,  -0.54,  99.90,  -1.27,  -0.63,  (min)
04/18 00Z,  -0.10,   4.84,  99.90,   4.10,  -0.63,
04/18 01Z,  -0.10,  13.81,  99.90,  13.08,  -0.63,
04/18 02Z,  -0.10,  22.05,  99.90,  21.32,  -0.63,
04/18 03Z,  -0.10,  27.84,  99.90,  27.11,  -0.63,
04/18 04Z,  -0.10,  30.58,  99.90,  29.84,  -0.63,  (max)
04/18 05Z,  -0.10,  29.71,  99.90,  28.97,  -0.63,
04/18 06Z,  -0.10,  26.00,  99.90,  25.27,  -0.63,
04/18 07Z,  -0.10,  20.72,  99.90,  19.99,  -0.63,
04/18 08Z,  -0.10,  14.91,  99.90,  14.18,  -0.63,
04/18 09Z,  -0.10,   9.52,  99.90,   8.79,  -0.63,
04/18 10Z,  -0.10,   5.17,  99.90,   4.44,  -0.63,
04/18 11Z,  -0.10,   3.74,  99.90,   3.00,  -0.63,  (min)
04/18 12Z,  -0.10,   7.97,  99.90,   7.23,  -0.63,
04/18 13Z,  -0.10,  16.78,  99.90,  16.05,  -0.63,
04/18 14Z,  -0.10,  25.34,  99.90,  24.61,  -0.63,
04/18 15Z,   0.00,  30.69,  99.90,  30.05,  -0.63,
04/18 16Z,   0.00,  32.55,  99.90,  31.92,  -0.63,  (max)
04/18 17Z,   0.00,  30.94,  99.90,  30.31,  -0.63,
04/18 18Z,   0.00,  26.55,  99.90,  25.91,  -0.63,
04/18 19Z,  -0.10,  20.74,  99.90,  20.01,  -0.63,
04/18 20Z,  -0.10,  14.38,  99.90,  13.65,  -0.63,
04/18 21Z,  -0.10,   8.12,  99.90,   7.39,  -0.63,
04/18 22Z,  -0.20,   2.44,  99.90,   1.61,  -0.63,
04/18 23Z,  -0.20,  -1.47,  99.90,  -2.30,  -0.63,  (min)
04/19 00Z,  -0.20,  -0.53,  99.90,  -1.36,  -0.63,
04/19 01Z,  -0.20,   6.61,  99.90,   5.78,  -0.63,
04/19 02Z,  -0.20,  16.30,  99.90,  15.46,  -0.63,
04/19 03Z,  -0.10,  24.23,  99.90,  23.50,  -0.63,
04/19 04Z,  -0.10,  29.18,  99.90,  28.45,  -0.63,
04/19 05Z,  -0.10,  30.83,  99.90,  30.10,  -0.63,  (max)
04/19 06Z,  -0.10,  29.07,  99.90,  28.33,  -0.63,
04/19 07Z,  -0.10,  24.89,  99.90,  24.16,  -0.63,
04/19 08Z,   0.00,  19.41,  99.90,  18.78,  -0.63,
04/19 09Z,   0.00,  13.61,  99.90,  12.97,  -0.63,
04/19 10Z,   0.00,   8.45,  99.90,   7.81,  -0.63,
04/19 11Z,   0.00,   4.80,  99.90,   4.17,  -0.63,  (min)
04/19 12Z,   0.00,   4.87,  99.90,   4.24,  -0.63,
04/19 13Z,   0.00,  10.86,  99.90,  10.23,  -0.63,
04/19 14Z,   0.00,  20.42,  99.90,  19.79,  -0.63,
04/19 15Z,   0.00,  28.37,  99.90,  27.74,  -0.63,
04/19 16Z,   0.10,  32.40,  99.90,  31.86,  -0.63,
04/19 17Z,   0.10,  32.74,  99.90,  32.21,  -0.63,  (max)
04/19 18Z,   0.10,  29.81,  99.90,  29.28,  -0.63,
04/19 19Z,   0.10,  24.61,  99.90,  24.08,  -0.63,
04/19 20Z,   0.00,  18.42,  99.90,  17.78,  -0.63,
04/19 21Z,   0.00,  11.90,  99.90,  11.26,  -0.63,
04/19 22Z,   0.00,   5.73,  99.90,   5.09,  -0.63,
04/19 23Z,   0.00,   0.50,  99.90,  -0.13,  -0.63,
04/20 00Z,   0.00,  -2.26,  99.90,  -2.89,  -0.63,  (min)
04/20 01Z,   0.00,   0.43,  99.90,  -0.20,  -0.63,
04/20 02Z,   0.00,   8.82,  99.90,   8.19,  -0.63,
04/20 03Z,   0.10,  18.49,  99.90,  17.95,  -0.63,
04/20 04Z,   0.20,  25.60,  99.90,  25.17,  -0.63,
04/20 05Z,   0.20,  29.57,  99.90,  29.14,  -0.63,
04/20 06Z,   0.20,  30.34,  99.90,  29.91,  -0.63,  (max)
04/20 07Z,   0.30,  28.04,  99.90,  27.71,  -0.63,
04/20 08Z,   0.30,  23.65,  99.90,  23.32,  -0.63,
04/20 09Z,   0.40,  18.11,  99.90,  17.87,  -0.63,
04/20 10Z,   0.50,  12.42,  99.90,  12.28,  -0.63,
04/20 11Z,   0.50,   7.68,  99.90,   7.55,  -0.63,
04/20 12Z,   0.60,   4.95,  99.90,   4.91,  -0.63,  (min)
04/20 13Z,   0.70,   6.50,  99.90,   6.57,  -0.63,
04/20 14Z,   0.70,  13.73,  99.90,  13.80,  -0.63,
04/20 15Z,   0.90,  23.25,  99.90,  23.51,  -0.63,
04/20 16Z,   1.00,  30.03,  99.90,  30.40,  -0.63,
04/20 17Z,   1.20,  32.68,  99.90,  33.25,  -0.63,  (max)
04/20 18Z,   1.30,  31.87,  99.90,  32.54,  -0.63,
04/20 19Z,   1.30,  28.18,  99.90,  28.85,  -0.63,
04/20 20Z,   1.30,  22.67,  99.90,  23.33,  -0.63,
04/20 21Z,   1.30,  16.36,  99.90,  17.03,  -0.63,
04/20 22Z,   1.20,   9.90,  99.90,  10.47,  -0.63,
04/20 23Z,   1.20,   4.07,  99.90,   4.64,  -0.63,
04/21 00Z,   1.30,  -0.44,  99.90,   0.23,  -0.63,