EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
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Alaska
Gulf of Alaska
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Elfin Cove, AK
Yakutat, AK
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Seldovia, AK
Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
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Unalaska, AK
Surge List
Gulf of Alaska
#Neah Bay, WA : 04/21/2026 18:20:19 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 00Z,   0.60,   1.84,   1.67,  99.90,  -0.77,  (max)
04/20 01Z,   0.50,   0.81,   0.68,  99.90,  -0.63,
04/20 02Z,   0.40,  -0.26,  -0.37,  99.90,  -0.51,
04/20 03Z,   0.50,  -0.95,  -0.92,  99.90,  -0.47,  (min)
04/20 04Z,   0.50,  -1.03,  -0.86,  99.90,  -0.33,
04/20 05Z,   0.30,  -0.42,  -0.19,  99.90,  -0.07,
04/20 06Z,   0.30,   0.79,   0.88,  99.90,  -0.21,
04/20 07Z,   0.40,   2.38,   2.39,  99.90,  -0.39,
04/20 08Z,   0.30,   3.95,   3.92,  99.90,  -0.33,
04/20 09Z,   0.30,   4.99,   4.96,  99.90,  -0.33,
04/20 10Z,   0.40,   5.14,   5.06,  99.90,  -0.48,  (max)
04/20 11Z,   0.40,   4.33,   4.32,  99.90,  -0.41,
04/20 12Z,   0.50,   2.70,   2.81,  99.90,  -0.39,
04/20 13Z,   0.30,   0.50,   0.60,  99.90,  -0.20,
04/20 14Z,   0.30,  -1.91,  -1.80,  99.90,  -0.19,
04/20 15Z,   0.50,  -4.08,  -4.04,  99.90,  -0.46,
04/20 16Z,   0.50,  -5.57,  -5.46,  99.90,  -0.39,
04/20 17Z,   0.40,  -6.14,  -6.20,  99.90,  -0.46,  (min)
04/20 18Z,   0.60,  -5.71,  -5.78,  99.90,  -0.67,
04/20 19Z,   0.60,  -4.36,  -4.29,  99.90,  -0.53,
04/20 20Z,   0.60,  -2.40,  -2.30,  99.90,  -0.50,
04/20 21Z,   0.50,  -0.37,  -0.20,  99.90,  -0.33,
04/20 22Z,   0.60,   1.20,   1.22,  99.90,  -0.58,
04/20 23Z,   0.60,   2.01,   1.94,  99.90,  -0.67,
04/21 00Z,   0.70,   2.07,   1.99,  99.90,  -0.78,  (max)
04/21 01Z,   0.60,   1.55,   1.57,  99.90,  -0.58,
04/21 02Z,   0.60,   0.69,   0.75,  99.90,  -0.54,
04/21 03Z,   0.70,  -0.14,   0.02,  99.90,  -0.54,
04/21 04Z,   0.80,  -0.59,  -0.39,  99.90,  -0.60,  (min)
04/21 05Z,   0.70,  -0.47,  -0.19,  99.90,  -0.42,
04/21 06Z,   0.60,   0.22,   0.50,  99.90,  -0.32,
04/21 07Z,   0.60,   1.38,   1.52,  99.90,  -0.46,
04/21 08Z,   0.60,   2.81,   2.91,  99.90,  -0.50,
04/21 09Z,   0.50,   4.11,   4.15,  99.90,  -0.46,
04/21 10Z,   0.50,   4.84,   4.86,  99.90,  -0.48,  (max)
04/21 11Z,   0.60,   4.75,   4.83,  99.90,  -0.52,
04/21 12Z,   0.60,   3.81,   4.06,  99.90,  -0.35,
04/21 13Z,   0.50,   2.18,   2.42,  99.90,  -0.26,
04/21 14Z,   0.60,   0.07,   0.19,  99.90,  -0.48,
04/21 15Z,   0.70,  -2.16,  -2.10,  99.90,  -0.64,
04/21 16Z,   0.60,  -4.11,  -3.94,  99.90,  -0.43,
04/21 17Z,   0.50,  -5.40,  -5.15,  99.90,  -0.25,
04/21 18Z,   0.50,  -5.84,  -5.88,  99.90,  -0.54,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 19Z,   0.60,  -5.37,  99.90,  -5.31,  -0.53,
04/21 20Z,   0.60,  -4.08,  99.90,  -4.01,  -0.53,
04/21 21Z,   0.50,  -2.27,  99.90,  -2.30,  -0.52,
04/21 22Z,   0.50,  -0.45,  99.90,  -0.47,  -0.52,
04/21 23Z,   0.60,   0.92,  99.90,   1.01,  -0.52,
04/22 00Z,   0.60,   1.65,  99.90,   1.74,  -0.51,
04/22 01Z,   0.50,   1.75,  99.90,   1.74,  -0.51,  (max)
04/22 02Z,   0.50,   1.35,  99.90,   1.35,  -0.50,
04/22 03Z,   0.60,   0.68,  99.90,   0.78,  -0.50,
04/22 04Z,   0.70,   0.07,  99.90,   0.27,  -0.50,
04/22 05Z,   0.60,  -0.21,  99.90,  -0.11,  -0.49,  (min)
04/22 06Z,   0.60,  -0.03,  99.90,   0.08,  -0.49,
04/22 07Z,   0.60,   0.60,  99.90,   0.71,  -0.49,
04/22 08Z,   0.60,   1.60,  99.90,   1.71,  -0.49,
04/22 09Z,   0.60,   2.79,  99.90,   2.90,  -0.49,
04/22 10Z,   0.70,   3.82,  99.90,   4.03,  -0.49,
04/22 11Z,   0.70,   4.33,  99.90,   4.54,  -0.49,  (max)
04/22 12Z,   0.60,   4.13,  99.90,   4.24,  -0.49,
04/22 13Z,   0.60,   3.23,  99.90,   3.34,  -0.49,
04/22 14Z,   0.70,   1.75,  99.90,   1.96,  -0.49,
04/22 15Z,   0.70,  -0.13,  99.90,   0.08,  -0.49,
04/22 16Z,   0.60,  -2.12,  99.90,  -2.01,  -0.49,
04/22 17Z,   0.60,  -3.84,  99.90,  -3.73,  -0.49,
04/22 18Z,   0.70,  -4.98,  99.90,  -4.77,  -0.49,
04/22 19Z,   0.60,  -5.37,  99.90,  -5.25,  -0.49,  (min)
04/22 20Z,   0.50,  -4.95,  99.90,  -4.94,  -0.49,
04/22 21Z,   0.50,  -3.80,  99.90,  -3.79,  -0.49,
04/22 22Z,   0.60,  -2.20,  99.90,  -2.09,  -0.49,
04/22 23Z,   0.60,  -0.59,  99.90,  -0.48,  -0.49,
04/23 00Z,   0.50,   0.66,  99.90,   0.67,  -0.49,
04/23 01Z,   0.40,   1.37,  99.90,   1.28,  -0.49,
04/23 02Z,   0.50,   1.56,  99.90,   1.57,  -0.49,  (max)
04/23 03Z,   0.60,   1.31,  99.90,   1.42,  -0.49,
04/23 04Z,   0.50,   0.81,  99.90,   0.82,  -0.49,
04/23 05Z,   0.40,   0.32,  99.90,   0.23,  -0.49,
04/23 06Z,   0.40,   0.09,  99.90,  -0.00,  -0.49,  (min)
04/23 07Z,   0.50,   0.20,  99.90,   0.21,  -0.49,
04/23 08Z,   0.40,   0.66,  99.90,   0.57,  -0.49,
04/23 09Z,   0.40,   1.42,  99.90,   1.33,  -0.49,
04/23 10Z,   0.50,   2.35,  99.90,   2.36,  -0.49,
04/23 11Z,   0.40,   3.17,  99.90,   3.08,  -0.49,
04/23 12Z,   0.30,   3.58,  99.90,   3.39,  -0.49,  (max)
04/23 13Z,   0.40,   3.43,  99.90,   3.34,  -0.49,
04/23 14Z,   0.40,   2.71,  99.90,   2.63,  -0.49,
04/23 15Z,   0.30,   1.48,  99.90,   1.30,  -0.49,
04/23 16Z,   0.30,  -0.13,  99.90,  -0.32,  -0.49,
04/23 17Z,   0.40,  -1.87,  99.90,  -1.96,  -0.49,
04/23 18Z,   0.40,  -3.40,  99.90,  -3.49,  -0.49,
04/23 19Z,   0.20,  -4.43,  99.90,  -4.72,  -0.49,
04/23 20Z,   0.20,  -4.84,  99.90,  -5.13,  -0.49,  (min)
04/23 21Z,   0.30,  -4.53,  99.90,  -4.72,  -0.49,
04/23 22Z,   0.30,  -3.55,  99.90,  -3.74,  -0.49,
04/23 23Z,   0.20,  -2.13,  99.90,  -2.42,  -0.49,
04/24 00Z,   0.30,  -0.66,  99.90,  -0.85,  -0.49,
04/24 01Z,   0.30,   0.53,  99.90,   0.34,  -0.49,
04/24 02Z,   0.30,   1.29,  99.90,   1.10,  -0.49,
04/24 03Z,   0.30,   1.59,  99.90,   1.40,  -0.49,  (max)
04/24 04Z,   0.30,   1.45,  99.90,   1.26,  -0.49,
04/24 05Z,   0.30,   1.02,  99.90,   0.84,  -0.49,
04/24 06Z,   0.30,   0.55,  99.90,   0.36,  -0.49,
04/24 07Z,   0.30,   0.23,  99.90,   0.04,  -0.49,
04/24 08Z,   0.30,   0.16,  99.90,  -0.03,  -0.49,  (min)
04/24 09Z,   0.30,   0.36,  99.90,   0.17,  -0.49,
04/24 10Z,   0.40,   0.86,  99.90,   0.77,  -0.49,
04/24 11Z,   0.30,   1.59,  99.90,   1.40,  -0.49,
04/24 12Z,   0.30,   2.31,  99.90,   2.12,  -0.49,
04/24 13Z,   0.40,   2.75,  99.90,   2.66,  -0.49,
04/24 14Z,   0.40,   2.77,  99.90,   2.68,  -0.49,  (max)
04/24 15Z,   0.40,   2.31,  99.90,   2.22,  -0.49,
04/24 16Z,   0.30,   1.36,  99.90,   1.17,  -0.49,
04/24 17Z,   0.40,   0.00,  99.90,  -0.09,  -0.49,
04/24 18Z,   0.40,  -1.53,  99.90,  -1.62,  -0.49,
04/24 19Z,   0.40,  -2.91,  99.90,  -3.00,  -0.49,
04/24 20Z,   0.40,  -3.91,  99.90,  -4.00,  -0.49,
04/24 21Z,   0.40,  -4.36,  99.90,  -4.45,  -0.49,  (min)
04/24 22Z,   0.40,  -4.15,  99.90,  -4.24,  -0.49,
04/24 23Z,   0.40,  -3.29,  99.90,  -3.38,  -0.49,
04/25 00Z,   0.50,  -1.97,  99.90,  -1.96,  -0.49,
04/25 01Z,   0.50,  -0.56,  99.90,  -0.55,  -0.49,
04/25 02Z,   0.40,   0.65,  99.90,   0.56,  -0.49,
04/25 03Z,   0.50,   1.48,  99.90,   1.49,  -0.49,
04/25 04Z,   0.50,   1.85,  99.90,   1.86,  -0.49,  (max)
04/25 05Z,   0.50,   1.73,  99.90,   1.74,  -0.49,
04/25 06Z,   0.50,   1.25,  99.90,   1.26,  -0.49,
04/25 07Z,   0.50,   0.65,  99.90,   0.66,  -0.49,
04/25 08Z,   0.50,   0.13,  99.90,   0.14,  -0.49,
04/25 09Z,   0.50,  -0.21,  99.90,  -0.20,  -0.49,  (min)
04/25 10Z,   0.60,  -0.28,  99.90,  -0.17,  -0.49,
04/25 11Z,   0.60,   0.02,  99.90,   0.13,  -0.49,
04/25 12Z,   0.50,   0.65,  99.90,   0.66,  -0.49,