EXTRA-TROPICAL  STORM  SURGE
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hat-on
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Alaska
Gulf of Alaska
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Surge List
West Coast
#Seward, AK : 05/12/2026 17:21:56 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/11 00Z,   1.40,   2.01,   2.02,  99.90,  -1.39,  (min)
05/11 01Z,   1.30,   3.05,   3.01,  99.90,  -1.34,
05/11 02Z,   1.20,   4.42,   4.39,  99.90,  -1.23,
05/11 03Z,   0.90,   5.86,   5.65,  99.90,  -1.11,
05/11 04Z,   1.10,   7.05,   6.74,  99.90,  -1.41,
05/11 05Z,   1.10,   7.71,   7.44,  99.90,  -1.37,
05/11 06Z,   1.00,   7.76,   7.59,  99.90,  -1.17,  (max)
05/11 07Z,   0.90,   7.24,   7.00,  99.90,  -1.14,
05/11 08Z,   0.90,   6.29,   6.08,  99.90,  -1.11,
05/11 09Z,   0.90,   5.16,   5.02,  99.90,  -1.04,
05/11 10Z,   0.90,   4.19,   3.99,  99.90,  -1.10,
05/11 11Z,   0.80,   3.67,   3.40,  99.90,  -1.07,
05/11 12Z,   0.80,   3.71,   3.30,  99.90,  -1.21,  (min)
05/11 13Z,   0.70,   4.23,   3.82,  99.90,  -1.11,
05/11 14Z,   0.60,   5.10,   4.67,  99.90,  -1.03,
05/11 15Z,   0.50,   6.12,   5.59,  99.90,  -1.03,
05/11 16Z,   0.50,   6.98,   6.47,  99.90,  -1.01,
05/11 17Z,   0.50,   7.38,   6.98,  99.90,  -0.90,  (max)
05/11 18Z,   0.50,   7.19,   6.75,  99.90,  -0.94,
05/11 19Z,   0.40,   6.42,   5.99,  99.90,  -0.83,
05/11 20Z,   0.40,   5.21,   4.81,  99.90,  -0.80,
05/11 21Z,   0.40,   3.78,   3.34,  99.90,  -0.84,
05/11 22Z,   0.40,   2.48,   2.11,  99.90,  -0.77,
05/11 23Z,   0.40,   1.68,   1.18,  99.90,  -0.90,
05/12 00Z,   0.40,   1.59,   0.92,  99.90,  -1.07,  (min)
05/12 01Z,   0.30,   2.22,   1.68,  99.90,  -0.84,
05/12 02Z,   0.20,   3.45,   2.81,  99.90,  -0.84,
05/12 03Z,   0.20,   5.05,   4.43,  99.90,  -0.82,
05/12 04Z,   0.20,   6.70,   6.02,  99.90,  -0.88,
05/12 05Z,   0.20,   7.98,   7.37,  99.90,  -0.81,
05/12 06Z,   0.20,   8.59,   8.13,  99.90,  -0.66,  (max)
05/12 07Z,   0.20,   8.43,   7.93,  99.90,  -0.70,
05/12 08Z,   0.20,   7.56,   7.16,  99.90,  -0.60,
05/12 09Z,   0.20,   6.18,   5.88,  99.90,  -0.50,
05/12 10Z,   0.30,   4.60,   4.33,  99.90,  -0.57,
05/12 11Z,   0.40,   3.26,   3.13,  99.90,  -0.53,
05/12 12Z,   0.40,   2.51,   2.19,  99.90,  -0.72,  (min)
05/12 13Z,   0.30,   2.48,   2.22,  99.90,  -0.56,
05/12 14Z,   0.40,   3.14,   3.04,  99.90,  -0.50,
05/12 15Z,   0.70,   4.31,   4.07,  99.90,  -0.94,
05/12 16Z,   0.50,   5.70,   5.42,  99.90,  -0.78,
05/12 17Z,   0.50,   6.92,   6.79,  99.90,  -0.63,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/12 18Z,   0.70,   7.59,  99.90,   7.62,  -0.67,
05/12 19Z,   0.90,   7.54,  99.90,   7.73,  -0.71,  (max)
05/12 20Z,   0.90,   6.78,  99.90,   6.94,  -0.75,
05/12 21Z,   0.80,   5.48,  99.90,   5.50,  -0.78,
05/12 22Z,   0.90,   3.92,  99.90,   4.00,  -0.82,
05/12 23Z,   1.00,   2.52,  99.90,   2.66,  -0.86,
05/13 00Z,   1.00,   1.71,  99.90,   1.80,  -0.90,
05/13 01Z,   0.90,   1.72,  99.90,   1.68,  -0.94,  (min)
05/13 02Z,   1.00,   2.57,  99.90,   2.59,  -0.98,
05/13 03Z,   1.00,   4.10,  99.90,   4.08,  -1.02,
05/13 04Z,   1.00,   6.01,  99.90,   5.95,  -1.06,
05/13 05Z,   1.00,   7.85,  99.90,   7.75,  -1.10,
05/13 06Z,   1.10,   9.15,  99.90,   9.15,  -1.10,
05/13 07Z,   1.10,   9.57,  99.90,   9.57,  -1.10,  (max)
05/13 08Z,   1.10,   9.03,  99.90,   9.03,  -1.10,
05/13 09Z,   1.20,   7.65,  99.90,   7.75,  -1.10,
05/13 10Z,   1.30,   5.70,  99.90,   5.90,  -1.10,
05/13 11Z,   1.30,   3.62,  99.90,   3.83,  -1.10,
05/13 12Z,   1.30,   1.94,  99.90,   2.14,  -1.10,
05/13 13Z,   1.20,   1.07,  99.90,   1.17,  -1.10,  (min)
05/13 14Z,   1.20,   1.15,  99.90,   1.26,  -1.10,
05/13 15Z,   1.20,   2.13,  99.90,   2.23,  -1.10,
05/13 16Z,   1.20,   3.74,  99.90,   3.84,  -1.10,
05/13 17Z,   1.20,   5.58,  99.90,   5.69,  -1.10,
05/13 18Z,   1.20,   7.16,  99.90,   7.26,  -1.10,
05/13 19Z,   1.20,   8.03,  99.90,   8.13,  -1.10,  (max)
05/13 20Z,   1.20,   8.02,  99.90,   8.12,  -1.10,
05/13 21Z,   1.20,   7.17,  99.90,   7.27,  -1.10,
05/13 22Z,   1.00,   5.70,  99.90,   5.60,  -1.10,
05/13 23Z,   1.20,   3.96,  99.90,   4.06,  -1.10,
05/14 00Z,   1.30,   2.48,  99.90,   2.68,  -1.10,
05/14 01Z,   1.10,   1.72,  99.90,   1.72,  -1.10,  (min)
05/14 02Z,   1.10,   1.95,  99.90,   1.95,  -1.10,
05/14 03Z,   1.20,   3.13,  99.90,   3.23,  -1.10,
05/14 04Z,   1.20,   5.03,  99.90,   5.13,  -1.10,
05/14 05Z,   1.10,   7.24,  99.90,   7.24,  -1.10,
05/14 06Z,   1.30,   9.20,  99.90,   9.40,  -1.10,
05/14 07Z,   1.10,  10.38,  99.90,  10.38,  -1.10,
05/14 08Z,   1.10,  10.45,  99.90,  10.45,  -1.10,  (max)
05/14 09Z,   1.10,   9.40,  99.90,   9.40,  -1.10,
05/14 10Z,   1.20,   7.41,  99.90,   7.51,  -1.10,
05/14 11Z,   0.90,   4.87,  99.90,   4.67,  -1.10,
05/14 12Z,   1.00,   2.33,  99.90,   2.24,  -1.10,
05/14 13Z,   1.10,   0.42,  99.90,   0.43,  -1.10,
05/14 14Z,   1.00,  -0.42,  99.90,  -0.51,  -1.10,  (min)
05/14 15Z,   0.80,  -0.05,  99.90,  -0.35,  -1.10,
05/14 16Z,   0.80,   1.36,  99.90,   1.07,  -1.10,
05/14 17Z,   0.90,   3.48,  99.90,   3.28,  -1.10,
05/14 18Z,   0.90,   5.76,  99.90,   5.56,  -1.10,
05/14 19Z,   0.80,   7.61,  99.90,   7.31,  -1.10,
05/14 20Z,   0.80,   8.57,  99.90,   8.27,  -1.10,  (max)
05/14 21Z,   0.80,   8.49,  99.90,   8.19,  -1.10,
05/14 22Z,   0.80,   7.46,  99.90,   7.16,  -1.10,
05/14 23Z,   0.80,   5.77,  99.90,   5.47,  -1.10,
05/15 00Z,   0.80,   3.88,  99.90,   3.58,  -1.10,
05/15 01Z,   0.80,   2.38,  99.90,   2.08,  -1.10,
05/15 02Z,   0.80,   1.78,  99.90,   1.49,  -1.10,  (min)
05/15 03Z,   0.80,   2.32,  99.90,   2.02,  -1.10,
05/15 04Z,   0.80,   3.89,  99.90,   3.59,  -1.10,
05/15 05Z,   0.80,   6.16,  99.90,   5.86,  -1.10,
05/15 06Z,   0.80,   8.59,  99.90,   8.29,  -1.10,
05/15 07Z,   0.70,  10.55,  99.90,  10.15,  -1.10,
05/15 08Z,   0.70,  11.46,  99.90,  11.07,  -1.10,  (max)
05/15 09Z,   0.70,  11.08,  99.90,  10.68,  -1.10,
05/15 10Z,   0.70,   9.44,  99.90,   9.04,  -1.10,
05/15 11Z,   0.60,   6.84,  99.90,   6.34,  -1.10,
05/15 12Z,   0.60,   3.78,  99.90,   3.28,  -1.10,
05/15 13Z,   0.60,   0.92,  99.90,   0.42,  -1.10,
05/15 14Z,   0.60,  -1.06,  99.90,  -1.55,  -1.10,
05/15 15Z,   0.60,  -1.70,  99.90,  -2.20,  -1.10,  (min)
05/15 16Z,   0.70,  -0.94,  99.90,  -1.34,  -1.10,
05/15 17Z,   0.70,   0.97,  99.90,   0.57,  -1.10,
05/15 18Z,   0.70,   3.55,  99.90,   3.15,  -1.10,
05/15 19Z,   0.70,   6.16,  99.90,   5.76,  -1.10,
05/15 20Z,   0.70,   8.14,  99.90,   7.74,  -1.10,
05/15 21Z,   0.60,   9.06,  99.90,   8.56,  -1.10,  (max)
05/15 22Z,   0.60,   8.81,  99.90,   8.31,  -1.10,
05/15 23Z,   0.60,   7.57,  99.90,   7.07,  -1.10,
05/16 00Z,   0.60,   5.68,  99.90,   5.18,  -1.10,
05/16 01Z,   0.60,   3.70,  99.90,   3.20,  -1.10,
05/16 02Z,   0.60,   2.28,  99.90,   1.79,  -1.10,
05/16 03Z,   0.60,   1.95,  99.90,   1.45,  -1.10,  (min)
05/16 04Z,   0.50,   2.85,  99.90,   2.25,  -1.10,
05/16 05Z,   0.60,   4.80,  99.90,   4.30,  -1.10,
05/16 06Z,   0.70,   7.36,  99.90,   6.96,  -1.10,
05/16 07Z,   0.70,   9.89,  99.90,   9.49,  -1.10,
05/16 08Z,   0.70,  11.69,  99.90,  11.29,  -1.10,
05/16 09Z,   0.70,  12.24,  99.90,  11.84,  -1.10,  (max)
05/16 10Z,   0.70,  11.34,  99.90,  10.95,  -1.10,
05/16 11Z,   0.70,   9.15,  99.90,   8.75,  -1.10,
05/16 12Z,   0.70,   6.03,  99.90,   5.63,  -1.10,