EXTRA-TROPICAL  STORM  SURGE
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Alaska
Gulf of Alaska
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Elfin Cove, AK
Yakutat, AK
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Seldovia, AK
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Anchorage, AK
Kodiak Island, AK
Alitak, AK
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Adak Island, AK
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Unalaska, AK
Surge List
Gulf of Alaska
#Friday Harbor, WA : 04/16/2026 14:22:05 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/14 18Z,   0.60,  -6.77,  -5.87,  99.90,   0.30,  (min)
04/14 19Z,   0.60,  -6.26,  -5.42,  99.90,   0.24,
04/14 20Z,   0.60,  -5.64,  -4.79,  99.90,   0.25,
04/14 21Z,   0.70,  -5.09,  -4.13,  99.90,   0.26,
04/14 22Z,   0.80,  -4.76,  -3.83,  99.90,   0.13,
04/14 23Z,   0.80,  -4.76,  -3.82,  99.90,   0.14,  (max)
04/15 00Z,   0.80,  -5.16,  -4.15,  99.90,   0.21,
04/15 01Z,   0.80,  -5.93,  -4.88,  99.90,   0.25,
04/15 02Z,   0.80,  -6.87,  -5.76,  99.90,   0.31,
04/15 03Z,   0.80,  -7.69,  -6.63,  99.90,   0.26,
04/15 04Z,   0.90,  -8.12,  -7.08,  99.90,   0.14,  (min)
04/15 05Z,   0.90,  -7.99,  -7.01,  99.90,   0.08,
04/15 06Z,   0.80,  -7.33,  -6.45,  99.90,   0.08,
04/15 07Z,   0.80,  -6.31,  -5.53,  99.90,  -0.02,
04/15 08Z,   0.70,  -5.16,  -4.32,  99.90,   0.14,
04/15 09Z,   0.70,  -4.10,  -3.33,  99.90,   0.07,
04/15 10Z,   0.80,  -3.32,  -2.54,  99.90,  -0.02,
04/15 11Z,   0.80,  -2.98,  -2.11,  99.90,   0.07,  (max)
04/15 12Z,   0.70,  -3.21,  -2.24,  99.90,   0.27,
04/15 13Z,   0.70,  -4.02,  -2.96,  99.90,   0.36,
04/15 14Z,   0.70,  -5.23,  -4.17,  99.90,   0.36,
04/15 15Z,   0.70,  -6.55,  -5.44,  99.90,   0.41,
04/15 16Z,   0.70,  -7.62,  -6.49,  99.90,   0.43,
04/15 17Z,   0.70,  -8.15,  -7.01,  99.90,   0.44,  (min)
04/15 18Z,   0.70,  -8.08,  -6.95,  99.90,   0.43,
04/15 19Z,   0.60,  -7.50,  -6.53,  99.90,   0.37,
04/15 20Z,   0.60,  -6.62,  -5.73,  99.90,   0.29,
04/15 21Z,   0.70,  -5.67,  -4.80,  99.90,   0.17,
04/15 22Z,   0.70,  -4.85,  -3.99,  99.90,   0.16,
04/15 23Z,   0.60,  -4.31,  -3.43,  99.90,   0.28,
04/16 00Z,   0.60,  -4.21,  -3.36,  99.90,   0.25,  (max)
04/16 01Z,   0.70,  -4.59,  -3.79,  99.90,   0.10,
04/16 02Z,   0.60,  -5.37,  -4.54,  99.90,   0.23,
04/16 03Z,   0.60,  -6.31,  -5.54,  99.90,   0.17,
04/16 04Z,   0.50,  -7.07,  -6.29,  99.90,   0.28,
04/16 05Z,   0.50,  -7.38,  -6.61,  99.90,   0.27,  (min)
04/16 06Z,   0.40,  -7.11,  -6.40,  99.90,   0.31,
04/16 07Z,   0.40,  -6.35,  -5.78,  99.90,   0.17,
04/16 08Z,   0.30,  -5.31,  -4.85,  99.90,   0.16,
04/16 09Z,   0.30,  -4.24,  -3.78,  99.90,   0.16,
04/16 10Z,   0.30,  -3.36,  -2.90,  99.90,   0.16,
04/16 11Z,   0.30,  -2.89,  -2.43,  99.90,   0.16,  (max)
04/16 12Z,   0.20,  -2.97,  -2.47,  99.90,   0.30,
04/16 13Z,   0.20,  -3.69,  -3.13,  99.90,   0.36,
04/16 14Z,   0.20,  -4.98,  -4.30,  99.90,   0.48,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/16 15Z,   0.20,  -6.58,  99.90,  -5.91,   0.46,
04/16 16Z,   0.10,  -8.08,  99.90,  -7.54,   0.44,
04/16 17Z,   0.10,  -9.11,  99.90,  -8.58,   0.42,
04/16 18Z,   0.10,  -9.41,  99.90,  -8.91,   0.41,  (min)
04/16 19Z,   0.10,  -8.99,  99.90,  -8.51,   0.39,
04/16 20Z,   0.10,  -8.02,  99.90,  -7.56,   0.37,
04/16 21Z,   0.10,  -6.77,  99.90,  -6.32,   0.35,
04/16 22Z,   0.00,  -5.49,  99.90,  -5.16,   0.33,
04/16 23Z,   0.00,  -4.41,  99.90,  -4.10,   0.31,
04/17 00Z,   0.00,  -3.71,  99.90,  -3.42,   0.29,
04/17 01Z,   0.10,  -3.54,  99.90,  -3.17,   0.27,  (max)
04/17 02Z,   0.10,  -3.92,  99.90,  -3.56,   0.25,
04/17 03Z,   0.00,  -4.71,  99.90,  -4.45,   0.25,
04/17 04Z,   0.10,  -5.61,  99.90,  -5.26,   0.25,
04/17 05Z,   0.10,  -6.28,  99.90,  -5.93,   0.25,
04/17 06Z,   0.10,  -6.47,  99.90,  -6.11,   0.25,  (min)
04/17 07Z,   0.10,  -6.09,  99.90,  -5.74,   0.25,
04/17 08Z,   0.10,  -5.30,  99.90,  -4.94,   0.25,
04/17 09Z,   0.10,  -4.32,  99.90,  -3.96,   0.25,
04/17 10Z,   0.10,  -3.41,  99.90,  -3.05,   0.25,
04/17 11Z,   0.10,  -2.81,  99.90,  -2.46,   0.25,
04/17 12Z,   0.10,  -2.71,  99.90,  -2.36,   0.25,  (max)
04/17 13Z,   0.10,  -3.25,  99.90,  -2.90,   0.25,
04/17 14Z,   0.10,  -4.46,  99.90,  -4.10,   0.25,
04/17 15Z,   0.00,  -6.16,  99.90,  -5.91,   0.25,
04/17 16Z,   0.10,  -8.02,  99.90,  -7.66,   0.25,
04/17 17Z,   0.10,  -9.57,  99.90,  -9.21,   0.25,
04/17 18Z,   0.10, -10.43,  99.90, -10.08,   0.25,
04/17 19Z,   0.10, -10.43,  99.90, -10.08,   0.25,  (min)
04/17 20Z,   0.10,  -9.64,  99.90,  -9.29,   0.25,
04/17 21Z,   0.10,  -8.30,  99.90,  -7.95,   0.25,
04/17 22Z,   0.10,  -6.71,  99.90,  -6.36,   0.25,
04/17 23Z,   0.10,  -5.16,  99.90,  -4.81,   0.25,
04/18 00Z,   0.10,  -3.88,  99.90,  -3.53,   0.25,
04/18 01Z,   0.10,  -3.08,  99.90,  -2.72,   0.25,
04/18 02Z,   0.10,  -2.87,  99.90,  -2.51,   0.25,  (max)
04/18 03Z,   0.10,  -3.25,  99.90,  -2.89,   0.25,
04/18 04Z,   0.10,  -4.02,  99.90,  -3.66,   0.25,
04/18 05Z,   0.20,  -4.85,  99.90,  -4.40,   0.25,
04/18 06Z,   0.20,  -5.41,  99.90,  -4.95,   0.25,
04/18 07Z,   0.20,  -5.47,  99.90,  -5.02,   0.25,  (min)
04/18 08Z,   0.20,  -5.05,  99.90,  -4.59,   0.25,
04/18 09Z,   0.20,  -4.29,  99.90,  -3.84,   0.25,
04/18 10Z,   0.20,  -3.45,  99.90,  -3.00,   0.25,
04/18 11Z,   0.20,  -2.78,  99.90,  -2.33,   0.25,
04/18 12Z,   0.20,  -2.50,  99.90,  -2.05,   0.25,  (max)
04/18 13Z,   0.20,  -2.80,  99.90,  -2.34,   0.25,
04/18 14Z,   0.20,  -3.77,  99.90,  -3.32,   0.25,
04/18 15Z,   0.20,  -5.38,  99.90,  -4.92,   0.25,
04/18 16Z,   0.30,  -7.38,  99.90,  -6.82,   0.25,
04/18 17Z,   0.30,  -9.34,  99.90,  -8.79,   0.25,
04/18 18Z,   0.30, -10.81,  99.90, -10.25,   0.25,
04/18 19Z,   0.30, -11.43,  99.90, -10.88,   0.25,  (min)
04/18 20Z,   0.30, -11.11,  99.90, -10.56,   0.25,
04/18 21Z,   0.30,  -9.99,  99.90,  -9.44,   0.25,
04/18 22Z,   0.30,  -8.36,  99.90,  -7.80,   0.25,
04/18 23Z,   0.30,  -6.53,  99.90,  -5.98,   0.25,
04/19 00Z,   0.30,  -4.79,  99.90,  -4.24,   0.25,
04/19 01Z,   0.40,  -3.40,  99.90,  -2.74,   0.25,
04/19 02Z,   0.40,  -2.53,  99.90,  -1.88,   0.25,
04/19 03Z,   0.40,  -2.31,  99.90,  -1.65,   0.25,  (max)
04/19 04Z,   0.40,  -2.67,  99.90,  -2.01,   0.25,
04/19 05Z,   0.40,  -3.38,  99.90,  -2.72,   0.25,
04/19 06Z,   0.40,  -4.10,  99.90,  -3.45,   0.25,
04/19 07Z,   0.40,  -4.54,  99.90,  -3.88,   0.25,  (min)
04/19 08Z,   0.40,  -4.52,  99.90,  -3.87,   0.25,
04/19 09Z,   0.40,  -4.11,  99.90,  -3.45,   0.25,
04/19 10Z,   0.40,  -3.46,  99.90,  -2.80,   0.25,
04/19 11Z,   0.40,  -2.82,  99.90,  -2.16,   0.25,
04/19 12Z,   0.40,  -2.41,  99.90,  -1.76,   0.25,
04/19 13Z,   0.50,  -2.45,  99.90,  -1.70,   0.25,  (max)
04/19 14Z,   0.50,  -3.10,  99.90,  -2.34,   0.25,
04/19 15Z,   0.50,  -4.41,  99.90,  -3.66,   0.25,
04/19 16Z,   0.50,  -6.29,  99.90,  -5.53,   0.25,
04/19 17Z,   0.50,  -8.42,  99.90,  -7.66,   0.25,
04/19 18Z,   0.40, -10.35,  99.90,  -9.70,   0.25,
04/19 19Z,   0.40, -11.64,  99.90, -10.99,   0.25,
04/19 20Z,   0.40, -12.01,  99.90, -11.35,   0.25,  (min)
04/19 21Z,   0.40, -11.42,  99.90, -10.77,   0.25,
04/19 22Z,   0.40, -10.08,  99.90,  -9.43,   0.25,
04/19 23Z,   0.40,  -8.28,  99.90,  -7.62,   0.25,
04/20 00Z,   0.40,  -6.32,  99.90,  -5.67,   0.25,
04/20 01Z,   0.40,  -4.50,  99.90,  -3.85,   0.25,
04/20 02Z,   0.40,  -3.06,  99.90,  -2.41,   0.25,
04/20 03Z,   0.50,  -2.18,  99.90,  -1.43,   0.25,
04/20 04Z,   0.50,  -1.94,  99.90,  -1.18,   0.25,  (max)
04/20 05Z,   0.50,  -2.24,  99.90,  -1.49,   0.25,
04/20 06Z,   0.40,  -2.85,  99.90,  -2.19,   0.25,