EXTRA-TROPICAL  STORM  SURGE
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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
Gulf of Alaska
#Seward, AK : 05/17/2026 17:21:13 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 00Z,   0.60,   5.68,   5.00,  99.90,  -1.28,
05/16 01Z,   0.60,   3.70,   2.98,  99.90,  -1.32,
05/16 02Z,   0.50,   2.28,   1.50,  99.90,  -1.28,
05/16 03Z,   0.50,   1.95,   1.24,  99.90,  -1.21,  (min)
05/16 04Z,   0.50,   2.85,   2.19,  99.90,  -1.16,
05/16 05Z,   0.50,   4.80,   4.20,  99.90,  -1.10,
05/16 06Z,   0.50,   7.36,   6.82,  99.90,  -1.04,
05/16 07Z,   0.50,   9.89,   9.32,  99.90,  -1.07,
05/16 08Z,   0.50,  11.69,  11.08,  99.90,  -1.11,
05/16 09Z,   0.50,  12.24,  11.55,  99.90,  -1.19,  (max)
05/16 10Z,   0.50,  11.34,  10.68,  99.90,  -1.16,
05/16 11Z,   0.50,   9.15,   8.45,  99.90,  -1.20,
05/16 12Z,   0.50,   6.03,   5.32,  99.90,  -1.21,
05/16 13Z,   0.40,   2.60,   2.00,  99.90,  -1.00,
05/16 14Z,   0.30,  -0.40,  -0.94,  99.90,  -0.84,
05/16 15Z,   0.30,  -2.26,  -2.90,  99.90,  -0.94,
05/16 16Z,   0.40,  -2.58,  -3.13,  99.90,  -0.95,  (min)
05/16 17Z,   0.40,  -1.39,  -1.90,  99.90,  -0.91,
05/16 18Z,   0.40,   0.96,   0.28,  99.90,  -1.08,
05/16 19Z,   0.40,   3.88,   3.13,  99.90,  -1.15,
05/16 20Z,   0.40,   6.64,   5.98,  99.90,  -1.06,
05/16 21Z,   0.40,   8.60,   7.82,  99.90,  -1.18,
05/16 22Z,   0.50,   9.36,   8.51,  99.90,  -1.35,  (max)
05/16 23Z,   0.50,   8.90,   8.21,  99.90,  -1.19,
05/17 00Z,   0.50,   7.45,   6.99,  99.90,  -0.96,
05/17 01Z,   0.50,   5.44,   4.83,  99.90,  -1.11,
05/17 02Z,   0.40,   3.47,   2.78,  99.90,  -1.09,
05/17 03Z,   0.40,   2.24,   1.72,  99.90,  -0.92,  (min)
05/17 04Z,   0.30,   2.22,   1.80,  99.90,  -0.72,
05/17 05Z,   0.40,   3.49,   3.22,  99.90,  -0.67,
05/17 06Z,   0.60,   5.74,   5.63,  99.90,  -0.71,
05/17 07Z,   0.60,   8.46,   8.36,  99.90,  -0.70,
05/17 08Z,   0.70,  10.93,  10.88,  99.90,  -0.75,
05/17 09Z,   0.70,  12.46,  12.46,  99.90,  -0.70,
05/17 10Z,   0.80,  12.60,  12.55,  99.90,  -0.85,  (max)
05/17 11Z,   0.80,  11.23,  11.28,  99.90,  -0.75,
05/17 12Z,   1.00,   8.58,   8.58,  99.90,  -1.00,
05/17 13Z,   1.10,   5.13,   5.31,  99.90,  -0.92,
05/17 14Z,   1.10,   1.53,   1.77,  99.90,  -0.86,
05/17 15Z,   1.30,  -1.41,  -1.17,  99.90,  -1.06,
05/17 16Z,   1.00,  -3.01,  -2.78,  99.90,  -0.77,
05/17 17Z,   0.90,  -2.96,  -2.82,  99.90,  -0.76,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/17 18Z,   1.10,  -1.39,  99.90,  -1.08,  -0.79,
05/17 19Z,   1.20,   1.26,  99.90,   1.64,  -0.82,
05/17 20Z,   1.20,   4.33,  99.90,   4.67,  -0.85,
05/17 21Z,   1.20,   7.07,  99.90,   7.39,  -0.89,
05/17 22Z,   1.10,   8.87,  99.90,   9.05,  -0.92,
05/17 23Z,   1.30,   9.42,  99.90,   9.77,  -0.95,  (max)
05/18 00Z,   1.20,   8.76,  99.90,   8.97,  -0.98,
05/18 01Z,   1.00,   7.17,  99.90,   7.15,  -1.01,
05/18 02Z,   0.90,   5.12,  99.90,   4.98,  -1.05,
05/18 03Z,   0.90,   3.28,  99.90,   3.10,  -1.08,
05/18 04Z,   0.80,   2.31,  99.90,   2.00,  -1.11,  (min)
05/18 05Z,   0.70,   2.60,  99.90,   2.16,  -1.14,
05/18 06Z,   0.60,   4.15,  99.90,   3.61,  -1.14,
05/18 07Z,   0.70,   6.58,  99.90,   6.13,  -1.14,
05/18 08Z,   0.70,   9.28,  99.90,   8.84,  -1.14,
05/18 09Z,   0.70,  11.56,  99.90,  11.12,  -1.14,
05/18 10Z,   0.80,  12.76,  99.90,  12.42,  -1.14,  (max)
05/18 11Z,   0.80,  12.50,  99.90,  12.16,  -1.14,
05/18 12Z,   0.70,  10.77,  99.90,  10.33,  -1.14,
05/18 13Z,   0.70,   7.87,  99.90,   7.42,  -1.14,
05/18 14Z,   0.60,   4.29,  99.90,   3.75,  -1.14,
05/18 15Z,   0.60,   0.74,  99.90,   0.20,  -1.14,
05/18 16Z,   0.60,  -1.97,  99.90,  -2.52,  -1.14,
05/18 17Z,   0.50,  -3.24,  99.90,  -3.89,  -1.14,  (min)
05/18 18Z,   0.50,  -2.85,  99.90,  -3.49,  -1.14,
05/18 19Z,   0.50,  -1.02,  99.90,  -1.66,  -1.14,
05/18 20Z,   0.60,   1.75,  99.90,   1.21,  -1.14,
05/18 21Z,   0.60,   4.78,  99.90,   4.24,  -1.14,
05/18 22Z,   0.60,   7.35,  99.90,   6.80,  -1.14,
05/18 23Z,   0.60,   8.91,  99.90,   8.36,  -1.14,
05/19 00Z,   0.60,   9.24,  99.90,   8.70,  -1.14,  (max)
05/19 01Z,   0.60,   8.44,  99.90,   7.89,  -1.14,
05/19 02Z,   0.60,   6.80,  99.90,   6.26,  -1.14,
05/19 03Z,   0.70,   4.84,  99.90,   4.40,  -1.14,
05/19 04Z,   0.70,   3.19,  99.90,   2.75,  -1.14,
05/19 05Z,   0.80,   2.49,  99.90,   2.15,  -1.14,  (min)
05/19 06Z,   0.80,   3.04,  99.90,   2.70,  -1.14,
05/19 07Z,   0.80,   4.74,  99.90,   4.40,  -1.14,
05/19 08Z,   0.80,   7.16,  99.90,   6.82,  -1.14,
05/19 09Z,   0.80,   9.70,  99.90,   9.36,  -1.14,
05/19 10Z,   0.80,  11.69,  99.90,  11.34,  -1.14,
05/19 11Z,   0.80,  12.55,  99.90,  12.20,  -1.14,  (max)
05/19 12Z,   0.70,  11.99,  99.90,  11.55,  -1.14,
05/19 13Z,   0.70,  10.07,  99.90,   9.63,  -1.14,
05/19 14Z,   0.70,   7.12,  99.90,   6.68,  -1.14,
05/19 15Z,   0.70,   3.64,  99.90,   3.19,  -1.14,
05/19 16Z,   0.70,   0.32,  99.90,  -0.12,  -1.14,
05/19 17Z,   0.60,  -2.06,  99.90,  -2.60,  -1.14,
05/19 18Z,   0.70,  -2.99,  99.90,  -3.43,  -1.14,  (min)
05/19 19Z,   0.70,  -2.34,  99.90,  -2.79,  -1.14,
05/19 20Z,   0.60,  -0.41,  99.90,  -0.95,  -1.14,
05/19 21Z,   0.70,   2.30,  99.90,   1.86,  -1.14,
05/19 22Z,   0.70,   5.13,  99.90,   4.69,  -1.14,
05/19 23Z,   0.70,   7.44,  99.90,   7.00,  -1.14,
05/20 00Z,   0.70,   8.75,  99.90,   8.31,  -1.14,
05/20 01Z,   0.70,   8.92,  99.90,   8.48,  -1.14,  (max)
05/20 02Z,   0.60,   8.07,  99.90,   7.53,  -1.14,
05/20 03Z,   0.50,   6.49,  99.90,   5.85,  -1.14,
05/20 04Z,   0.60,   4.68,  99.90,   4.14,  -1.14,
05/20 05Z,   0.60,   3.26,  99.90,   2.72,  -1.14,
05/20 06Z,   0.60,   2.78,  99.90,   2.23,  -1.14,  (min)
05/20 07Z,   0.60,   3.46,  99.90,   2.91,  -1.14,
05/20 08Z,   0.60,   5.13,  99.90,   4.59,  -1.14,
05/20 09Z,   0.60,   7.38,  99.90,   6.84,  -1.14,
05/20 10Z,   0.60,   9.64,  99.90,   9.10,  -1.14,
05/20 11Z,   0.60,  11.30,  99.90,  10.76,  -1.14,
05/20 12Z,   0.50,  11.89,  99.90,  11.24,  -1.14,  (max)
05/20 13Z,   0.50,  11.17,  99.90,  10.53,  -1.14,
05/20 14Z,   0.60,   9.26,  99.90,   8.72,  -1.14,
05/20 15Z,   0.40,   6.45,  99.90,   5.71,  -1.14,
05/20 16Z,   0.40,   3.24,  99.90,   2.50,  -1.14,
05/20 17Z,   0.60,   0.29,  99.90,  -0.26,  -1.14,
05/20 18Z,   0.80,  -1.73,  99.90,  -2.07,  -1.14,
05/20 19Z,   0.80,  -2.37,  99.90,  -2.71,  -1.14,  (min)
05/20 20Z,   0.80,  -1.59,  99.90,  -1.93,  -1.14,
05/20 21Z,   1.00,   0.30,  99.90,   0.16,  -1.14,
05/20 22Z,   1.10,   2.81,  99.90,   2.77,  -1.14,
05/20 23Z,   1.20,   5.37,  99.90,   5.43,  -1.14,
05/21 00Z,   1.20,   7.40,  99.90,   7.46,  -1.14,
05/21 01Z,   1.30,   8.52,  99.90,   8.68,  -1.14,  (max)
05/21 02Z,   1.20,   8.61,  99.90,   8.66,  -1.14,
05/21 03Z,   1.20,   7.79,  99.90,   7.84,  -1.14,
05/21 04Z,   1.20,   6.33,  99.90,   6.39,  -1.14,
05/21 05Z,   1.20,   4.70,  99.90,   4.76,  -1.14,
05/21 06Z,   1.20,   3.46,  99.90,   3.52,  -1.14,
05/21 07Z,   1.20,   3.09,  99.90,   3.15,  -1.14,  (min)
05/21 08Z,   1.20,   3.74,  99.90,   3.80,  -1.14,
05/21 09Z,   1.10,   5.23,  99.90,   5.19,  -1.14,
05/21 10Z,   1.10,   7.19,  99.90,   7.14,  -1.14,
05/21 11Z,   1.00,   9.11,  99.90,   8.97,  -1.14,
05/21 12Z,   1.00,  10.48,  99.90,  10.34,  -1.14,