EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
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Gulf of Alaska
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Surge List 
#Port Heiden, AK : 04/21/2026 00:22:48 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/19 06Z,   1.10, -16.45,  99.90, -15.35,   0.00,  (min)
04/19 07Z,   1.30, -14.92,  99.90, -13.62,   0.00,
04/19 08Z,   1.50, -11.26,  99.90,  -9.76,   0.00,
04/19 09Z,   1.50,  -7.19,  99.90,  -5.69,   0.00,
04/19 10Z,   1.50,  -4.15,  99.90,  -2.65,   0.00,
04/19 11Z,   1.40,  -2.47,  99.90,  -1.07,   0.00,
04/19 12Z,   1.30,  -1.81,  99.90,  -0.51,   0.00,  (max)
04/19 13Z,   1.20,  -1.74,  99.90,  -0.54,   0.00,
04/19 14Z,   1.10,  -1.94,  99.90,  -0.84,   0.00,
04/19 15Z,   1.00,  -2.66,  99.90,  -1.66,   0.00,
04/19 16Z,   1.00,  -4.13,  99.90,  -3.13,   0.00,
04/19 17Z,   1.00,  -6.21,  99.90,  -5.21,   0.00,
04/19 18Z,   1.10,  -8.22,  99.90,  -7.12,   0.00,
04/19 19Z,   1.10,  -9.08,  99.90,  -7.98,   0.00,  (min)
04/19 20Z,   1.20,  -8.24,  99.90,  -7.04,   0.00,
04/19 21Z,   1.30,  -6.60,  99.90,  -5.30,   0.00,
04/19 22Z,   1.30,  -5.46,  99.90,  -4.16,   0.00,
04/19 23Z,   1.30,  -5.13,  99.90,  -3.83,   0.00,
04/20 00Z,   1.30,  -5.13,  99.90,  -3.83,   0.00,  (max)
04/20 01Z,   1.20,  -5.38,  99.90,  -4.18,   0.00,
04/20 02Z,   1.20,  -6.30,  99.90,  -5.10,   0.00,
04/20 03Z,   1.10,  -8.18,  99.90,  -7.08,   0.00,
04/20 04Z,   1.00, -10.94,  99.90,  -9.94,   0.00,
04/20 05Z,   0.90, -14.08,  99.90, -13.18,   0.00,
04/20 06Z,   0.60, -16.67,  99.90, -16.07,   0.00,
04/20 07Z,   0.50, -17.37,  99.90, -16.87,   0.00,  (min)
04/20 08Z,   0.30, -15.30,  99.90, -15.00,   0.00,
04/20 09Z,   0.30, -11.17,  99.90, -10.87,   0.00,
04/20 10Z,   0.30,  -6.80,  99.90,  -6.50,   0.00,
04/20 11Z,   0.30,  -3.62,  99.90,  -3.32,   0.00,
04/20 12Z,   0.40,  -1.88,  99.90,  -1.48,   0.00,
04/20 13Z,   0.40,  -1.21,  99.90,  -0.81,   0.00,
04/20 14Z,   0.40,  -1.15,  99.90,  -0.75,   0.00,  (max)
04/20 15Z,   0.40,  -1.40,  99.90,  -1.00,   0.00,
04/20 16Z,   0.40,  -2.24,  99.90,  -1.84,   0.00,
04/20 17Z,   0.50,  -3.90,  99.90,  -3.40,   0.00,
04/20 18Z,   0.60,  -6.17,  99.90,  -5.57,   0.00,
04/20 19Z,   0.60,  -8.31,  99.90,  -7.71,   0.00,
04/20 20Z,   0.60,  -9.13,  99.90,  -8.53,   0.00,  (min)
04/20 21Z,   0.70,  -8.20,  99.90,  -7.50,   0.00,
04/20 22Z,   0.80,  -6.55,  99.90,  -5.75,   0.00,
04/20 23Z,   0.90,  -5.47,  99.90,  -4.57,   0.00,
04/21 00Z,   1.00,  -5.18,  99.90,  -4.18,   0.00,  (max)
04/21 01Z,   0.90,  -5.18,  99.90,  -4.28,   0.00,
04/21 02Z,   0.80,  -5.50,  99.90,  -4.70,   0.00,
04/21 03Z,   0.80,  -6.57,  99.90,  -5.77,   0.00,
04/21 04Z,   0.60,  -8.63,  99.90,  -8.03,   0.00,
04/21 05Z,   0.50, -11.58,  99.90, -11.08,   0.00,
04/21 06Z,   0.30, -14.87,  99.90, -14.57,   0.00,
04/21 07Z,   0.10, -17.45,  99.90, -17.35,   0.00,
04/21 08Z,   0.10, -17.88,  99.90, -17.78,   0.00,  (min)
04/21 09Z,   0.10, -15.41,  99.90, -15.31,   0.00,
04/21 10Z,   0.10, -10.96,  99.90, -10.86,   0.00,
04/21 11Z,   0.10,  -6.45,  99.90,  -6.35,   0.00,
04/21 12Z,   0.10,  -3.22,  99.90,  -3.12,   0.00,
04/21 13Z,   0.20,  -1.48,  99.90,  -1.28,   0.00,
04/21 14Z,   0.20,  -0.82,  99.90,  -0.62,   0.00,
04/21 15Z,   0.20,  -0.80,  99.90,  -0.60,   0.00,  (max)
04/21 16Z,   0.20,  -1.11,  99.90,  -0.91,   0.00,
04/21 17Z,   0.20,  -2.08,  99.90,  -1.88,   0.00,
04/21 18Z,   0.30,  -3.91,  99.90,  -3.61,   0.00,
04/21 19Z,   0.40,  -6.38,  99.90,  -5.98,   0.00,
04/21 20Z,   0.40,  -8.60,  99.90,  -8.20,   0.00,
04/21 21Z,   0.50,  -9.35,  99.90,  -8.85,   0.00,  (min)
04/21 22Z,   0.50,  -8.30,  99.90,  -7.80,   0.00,
04/21 23Z,   0.40,  -6.57,  99.90,  -6.17,   0.00,
04/22 00Z,   0.40,  -5.47,  99.90,  -5.07,   0.00,
04/22 01Z,   0.40,  -5.16,  99.90,  -4.76,   0.00,
04/22 02Z,   0.40,  -5.16,  99.90,  -4.76,   0.00,  (max)
04/22 03Z,   0.40,  -5.51,  99.90,  -5.11,   0.00,
04/22 04Z,   0.40,  -6.64,  99.90,  -6.24,   0.00,
04/22 05Z,   0.40,  -8.78,  99.90,  -8.38,   0.00,
04/22 06Z,   0.50, -11.82,  99.90, -11.32,   0.00,
04/22 07Z,   0.50, -15.18,  99.90, -14.68,   0.00,
04/22 08Z,   0.50, -17.72,  99.90, -17.22,   0.00,
04/22 09Z,   0.40, -17.96,  99.90, -17.56,   0.00,  (min)
04/22 10Z,   0.50, -15.24,  99.90, -14.74,   0.00,
04/22 11Z,   0.60, -10.65,  99.90, -10.05,   0.00,
04/22 12Z,   0.70,  -6.14,  99.90,  -5.44,   0.00,
04/22 13Z,   0.90,  -2.97,  99.90,  -2.07,   0.00,
04/22 14Z,   0.90,  -1.29,  99.90,  -0.39,   0.00,
04/22 15Z,   1.00,  -0.68,  99.90,   0.32,   0.00,  (max)
04/22 16Z,   1.00,  -0.68,  99.90,   0.32,   0.00,
04/22 17Z,   1.10,  -1.07,  99.90,   0.03,   0.00,
04/22 18Z,   1.20,  -2.17,  99.90,  -0.97,   0.00,
04/22 19Z,   1.30,  -4.19,  99.90,  -2.89,   0.00,
04/22 20Z,   1.40,  -6.82,  99.90,  -5.42,   0.00,
04/22 21Z,   1.40,  -9.10,  99.90,  -7.70,   0.00,
04/22 22Z,   1.40,  -9.74,  99.90,  -8.34,   0.00,  (min)
04/22 23Z,   1.30,  -8.53,  99.90,  -7.23,   0.00,
04/23 00Z,   1.30,  -6.69,  99.90,  -5.39,   0.00,
04/23 01Z,   1.20,  -5.49,  99.90,  -4.29,   0.00,
04/23 02Z,   1.10,  -5.12,  99.90,  -4.02,   0.00,
04/23 03Z,   1.10,  -5.09,  99.90,  -3.99,   0.00,  (max)
04/23 04Z,   1.10,  -5.44,  99.90,  -4.34,   0.00,
04/23 05Z,   1.20,  -6.54,  99.90,  -5.34,   0.00,
04/23 06Z,   1.20,  -8.65,  99.90,  -7.45,   0.00,
04/23 07Z,   1.30, -11.66,  99.90, -10.36,   0.00,
04/23 08Z,   1.40, -15.01,  99.90, -13.61,   0.00,
04/23 09Z,   1.40, -17.50,  99.90, -16.10,   0.00,
04/23 10Z,   1.40, -17.61,  99.90, -16.21,   0.00,  (min)
04/23 11Z,   1.30, -14.78,  99.90, -13.48,   0.00,
04/23 12Z,   1.20, -10.22,  99.90,  -9.02,   0.00,
04/23 13Z,   1.10,  -5.86,  99.90,  -4.76,   0.00,
04/23 14Z,   0.90,  -2.85,  99.90,  -1.95,   0.00,
04/23 15Z,   0.90,  -1.28,  99.90,  -0.38,   0.00,
04/23 16Z,   0.80,  -0.75,  99.90,   0.05,   0.00,
04/23 17Z,   0.90,  -0.80,  99.90,   0.10,   0.00,  (max)
04/23 18Z,   1.00,  -1.27,  99.90,  -0.27,   0.00,
04/23 19Z,   1.10,  -2.51,  99.90,  -1.41,   0.00,
04/23 20Z,   1.20,  -4.70,  99.90,  -3.50,   0.00,
04/23 21Z,   1.30,  -7.48,  99.90,  -6.18,   0.00,
04/23 22Z,   1.30,  -9.78,  99.90,  -8.48,   0.00,
04/23 23Z,   1.20, -10.29,  99.90,  -9.09,   0.00,  (min)
04/24 00Z,   1.10,  -8.90,  99.90,  -7.80,   0.00,
04/24 01Z,   0.90,  -6.90,  99.90,  -6.00,   0.00,
04/24 02Z,   0.70,  -5.55,  99.90,  -4.85,   0.00,
04/24 03Z,   0.60,  -5.07,  99.90,  -4.47,   0.00,  (max)
04/24 04Z,   0.40,  -5.01,  99.90,  -4.61,   0.00,
04/24 05Z,   0.40,  -5.30,  99.90,  -4.90,   0.00,
04/24 06Z,   0.40,  -6.30,  99.90,  -5.90,   0.00,
04/24 07Z,   0.40,  -8.26,  99.90,  -7.86,   0.00,
04/24 08Z,   0.40, -11.13,  99.90, -10.73,   0.00,
04/24 09Z,   0.40, -14.38,  99.90, -13.98,   0.00,
04/24 10Z,   0.40, -16.80,  99.90, -16.40,   0.00,  (min)
04/24 11Z,   0.50, -16.84,  99.90, -16.34,   0.00,
04/24 12Z,   0.50, -14.04,  99.90, -13.54,   0.00,
04/24 13Z,   0.50,  -9.68,  99.90,  -9.18,   0.00,
04/24 14Z,   0.50,  -5.60,  99.90,  -5.10,   0.00,
04/24 15Z,   0.50,  -2.83,  99.90,  -2.33,   0.00,
04/24 16Z,   0.50,  -1.44,  99.90,  -0.94,   0.00,
04/24 17Z,   0.50,  -1.00,  99.90,  -0.50,   0.00,  (max)
04/24 18Z,   0.50,  -1.10,  99.90,  -0.60,   0.00,
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