EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
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Alaska
Gulf of Alaska
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Seldovia, AK
Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
Sand Point, AK
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Unalaska, AK
Surge List
Gulf of Alaska
#Seldovia, AK : 04/21/2026 09:21:07 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/19 18Z,   0.20,  -4.43,  -4.64,  99.90,  -0.41,
04/19 19Z,   0.20,  -4.55,  -4.61,  99.90,  -0.26,  (min)
04/19 20Z,   0.30,  -1.64,  -1.88,  99.90,  -0.54,
04/19 21Z,   0.30,   3.27,   2.74,  99.90,  -0.83,
04/19 22Z,   0.20,   8.90,   8.51,  99.90,  -0.59,
04/19 23Z,   0.20,  14.09,  13.84,  99.90,  -0.45,
04/20 00Z,   0.10,  17.70,  17.21,  99.90,  -0.59,
04/20 01Z,   0.10,  18.96,  18.34,  99.90,  -0.72,  (max)
04/20 02Z,   0.10,  17.66,  17.21,  99.90,  -0.55,
04/20 03Z,   0.00,  14.20,  13.69,  99.90,  -0.51,
04/20 04Z,   0.00,   9.55,   9.03,  99.90,  -0.52,
04/20 05Z,   0.00,   5.01,   4.64,  99.90,  -0.37,
04/20 06Z,   0.00,   1.94,   1.64,  99.90,  -0.30,
04/20 07Z,   0.00,   1.44,   1.25,  99.90,  -0.19,  (min)
04/20 08Z,   0.00,   3.77,   3.83,  99.90,   0.06,
04/20 09Z,   0.10,   8.09,   8.04,  99.90,  -0.15,
04/20 10Z,   0.30,  13.08,  12.76,  99.90,  -0.62,
04/20 11Z,   0.30,  17.55,  17.15,  99.90,  -0.70,
04/20 12Z,   0.00,  20.45,  20.08,  99.90,  -0.37,
04/20 13Z,   0.00,  20.98,  20.51,  99.90,  -0.47,  (max)
04/20 14Z,   0.00,  18.90,  18.26,  99.90,  -0.64,
04/20 15Z,   0.00,  14.55,  13.97,  99.90,  -0.58,
04/20 16Z,   0.10,   8.83,   8.54,  99.90,  -0.39,
04/20 17Z,   0.10,   2.97,   2.72,  99.90,  -0.35,
04/20 18Z,  -0.20,  -1.72,  -2.01,  99.90,  -0.09,
04/20 19Z,  -0.10,  -4.06,  -4.41,  99.90,  -0.25,  (min)
04/20 20Z,   0.00,  -3.42,  -3.78,  99.90,  -0.36,
04/20 21Z,   0.00,  -0.18,  -0.84,  99.90,  -0.66,
04/20 22Z,   0.20,   4.55,   3.74,  99.90,  -1.01,
04/20 23Z,   0.30,   9.68,   9.17,  99.90,  -0.81,
04/21 00Z,   0.00,  14.17,  13.89,  99.90,  -0.28,
04/21 01Z,   0.00,  17.08,  16.56,  99.90,  -0.52,
04/21 02Z,   0.00,  17.79,  17.23,  99.90,  -0.56,  (max)
04/21 03Z,   0.00,  16.24,  15.74,  99.90,  -0.50,
04/21 04Z,   0.00,  12.91,  12.24,  99.90,  -0.67,
04/21 05Z,   0.00,   8.78,   8.09,  99.90,  -0.69,
04/21 06Z,   0.00,   5.04,   4.42,  99.90,  -0.62,
04/21 07Z,   0.00,   2.85,   2.22,  99.90,  -0.63,  (min)
04/21 08Z,   0.00,   3.06,   2.58,  99.90,  -0.48,
04/21 09Z,   0.00,   5.66,   5.37,  99.90,  -0.29,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 10Z,   0.00,   9.71,  99.90,   9.41,  -0.30,
04/21 11Z,   0.00,  14.04,  99.90,  13.73,  -0.31,
04/21 12Z,   0.00,  17.66,  99.90,  17.35,  -0.31,
04/21 13Z,   0.00,  19.71,  99.90,  19.39,  -0.32,  (max)
04/21 14Z,   0.00,  19.57,  99.90,  19.24,  -0.33,
04/21 15Z,   0.00,  17.15,  99.90,  16.81,  -0.34,
04/21 16Z,   0.00,  12.89,  99.90,  12.54,  -0.35,
04/21 17Z,   0.00,   7.68,  99.90,   7.32,  -0.36,
04/21 18Z,   0.00,   2.63,  99.90,   2.26,  -0.37,
04/21 19Z,  -0.10,  -1.16,  99.90,  -1.63,  -0.37,
04/21 20Z,  -0.10,  -2.76,  99.90,  -3.24,  -0.38,  (min)
04/21 21Z,  -0.10,  -1.77,  99.90,  -2.26,  -0.39,
04/21 22Z,  -0.10,   1.29,  99.90,   0.80,  -0.39,
04/21 23Z,  -0.10,   5.45,  99.90,   4.96,  -0.39,
04/22 00Z,  -0.10,   9.81,  99.90,   9.32,  -0.39,
04/22 01Z,   0.00,  13.56,  99.90,  13.17,  -0.39,
04/22 02Z,   0.00,  15.90,  99.90,  15.50,  -0.39,
04/22 03Z,   0.00,  16.34,  99.90,  15.95,  -0.39,  (max)
04/22 04Z,  -0.10,  14.89,  99.90,  14.40,  -0.39,
04/22 05Z,  -0.10,  12.05,  99.90,  11.56,  -0.39,
04/22 06Z,  -0.10,   8.68,  99.90,   8.18,  -0.39,
04/22 07Z,   0.00,   5.75,  99.90,   5.36,  -0.39,
04/22 08Z,   0.00,   4.21,  99.90,   3.82,  -0.39,  (min)
04/22 09Z,  -0.10,   4.70,  99.90,   4.21,  -0.39,
04/22 10Z,  -0.10,   7.08,  99.90,   6.58,  -0.39,
04/22 11Z,  -0.10,  10.47,  99.90,   9.98,  -0.39,
04/22 12Z,  -0.20,  13.95,  99.90,  13.36,  -0.39,
04/22 13Z,  -0.20,  16.76,  99.90,  16.17,  -0.39,
04/22 14Z,  -0.30,  18.20,  99.90,  17.50,  -0.39,  (max)
04/22 15Z,  -0.30,  17.78,  99.90,  17.09,  -0.39,
04/22 16Z,  -0.20,  15.50,  99.90,  14.90,  -0.39,
04/22 17Z,  -0.20,  11.78,  99.90,  11.19,  -0.39,
04/22 18Z,  -0.10,   7.40,  99.90,   6.91,  -0.39,
04/22 19Z,  -0.10,   3.26,  99.90,   2.77,  -0.39,
04/22 20Z,  -0.10,   0.21,  99.90,  -0.28,  -0.39,
04/22 21Z,  -0.10,  -1.00,  99.90,  -1.49,  -0.39,  (min)
04/22 22Z,  -0.10,  -0.11,  99.90,  -0.60,  -0.39,
04/22 23Z,  -0.10,   2.41,  99.90,   1.91,  -0.39,
04/23 00Z,  -0.10,   5.78,  99.90,   5.28,  -0.39,
04/23 01Z,  -0.10,   9.37,  99.90,   8.88,  -0.39,
04/23 02Z,  -0.10,  12.52,  99.90,  12.03,  -0.39,
04/23 03Z,  -0.10,  14.55,  99.90,  14.06,  -0.39,
04/23 04Z,  -0.20,  15.05,  99.90,  14.46,  -0.39,  (max)
04/23 05Z,  -0.40,  14.02,  99.90,  13.23,  -0.39,
04/23 06Z,  -0.40,  11.85,  99.90,  11.06,  -0.39,
04/23 07Z,  -0.50,   9.22,  99.90,   8.33,  -0.39,
04/23 08Z,  -0.40,   6.88,  99.90,   6.09,  -0.39,
04/23 09Z,  -0.30,   5.60,  99.90,   4.90,  -0.39,  (min)
04/23 10Z,  -0.20,   5.92,  99.90,   5.32,  -0.39,
04/23 11Z,  -0.10,   7.69,  99.90,   7.20,  -0.39,
04/23 12Z,  -0.10,  10.24,  99.90,   9.75,  -0.39,
04/23 13Z,  -0.10,  12.91,  99.90,  12.42,  -0.39,
04/23 14Z,  -0.10,  15.14,  99.90,  14.65,  -0.39,
04/23 15Z,  -0.30,  16.33,  99.90,  15.64,  -0.39,  (max)
04/23 16Z,  -0.40,  16.06,  99.90,  15.27,  -0.39,
04/23 17Z,  -0.50,  14.32,  99.90,  13.43,  -0.39,
04/23 18Z,  -0.50,  11.42,  99.90,  10.53,  -0.39,
04/23 19Z,  -0.50,   7.94,  99.90,   7.05,  -0.39,
04/23 20Z,  -0.50,   4.55,  99.90,   3.65,  -0.39,
04/23 21Z,  -0.40,   1.91,  99.90,   1.12,  -0.39,
04/23 22Z,  -0.30,   0.70,  99.90,   0.01,  -0.39,  (min)
04/23 23Z,  -0.30,   1.17,  99.90,   0.48,  -0.39,
04/24 00Z,  -0.30,   2.97,  99.90,   2.28,  -0.39,
04/24 01Z,  -0.30,   5.59,  99.90,   4.90,  -0.39,
04/24 02Z,  -0.30,   8.61,  99.90,   7.91,  -0.39,
04/24 03Z,  -0.40,  11.46,  99.90,  10.66,  -0.39,
04/24 04Z,  -0.40,  13.50,  99.90,  12.71,  -0.39,
04/24 05Z,  -0.40,  14.32,  99.90,  13.53,  -0.39,  (max)
04/24 06Z,  -0.30,  13.84,  99.90,  13.15,  -0.39,
04/24 07Z,  -0.30,  12.30,  99.90,  11.61,  -0.39,
04/24 08Z,  -0.20,  10.17,  99.90,   9.58,  -0.39,
04/24 09Z,  -0.10,   8.03,  99.90,   7.53,  -0.39,
04/24 10Z,  -0.10,   6.58,  99.90,   6.08,  -0.39,
04/24 11Z,  -0.10,   6.37,  99.90,   5.88,  -0.39,  (min)
04/24 12Z,  -0.20,   7.37,  99.90,   6.78,  -0.39,
04/24 13Z,  -0.20,   9.12,  99.90,   8.53,  -0.39,
04/24 14Z,  -0.30,  11.23,  99.90,  10.53,  -0.39,
04/24 15Z,  -0.40,  13.24,  99.90,  12.44,  -0.39,
04/24 16Z,  -0.40,  14.57,  99.90,  13.78,  -0.39,
04/24 17Z,  -0.40,  14.81,  99.90,  14.01,  -0.39,  (max)
04/24 18Z,  -0.40,  13.81,  99.90,  13.02,  -0.39,
04/24 19Z,  -0.30,  11.75,  99.90,  11.06,  -0.39,
04/24 20Z,  -0.20,   9.00,  99.90,   8.40,  -0.39,
04/24 21Z,  -0.20,   6.03,  99.90,   5.44,  -0.39,
04/24 22Z,  -0.20,   3.45,  99.90,   2.86,  -0.39,
04/24 23Z,  -0.30,   1.95,  99.90,   1.26,  -0.39,
04/25 00Z,  -0.30,   1.87,  99.90,   1.18,  -0.39,
04/25 01Z,  99.90,   3.03,  99.90,  99.90,  -0.39,
04/25 02Z,  99.90,   5.14,  99.90,  99.90,  -0.39,
04/25 03Z,  99.90,   7.92,  99.90,  99.90,  -0.39,
04/25 04Z,  99.90,  10.80,  99.90,  99.90,  -0.39,
04/25 05Z,  99.90,  13.10,  99.90,  99.90,  -0.39,
04/25 06Z,  99.90,  14.35,  99.90,  99.90,  -0.39,