EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
mllw-on
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Alaska
Gulf of Alaska
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Kodiak Island, AK
Alitak, AK
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Unalaska, AK
Surge List
Gulf of Alaska
#Alitak, AK : 04/12/2026 12:21:13 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/10 12Z,  -0.80,   7.10,   6.07,  99.90,  -0.23,
04/10 13Z,  -0.80,   7.72,   6.73,  99.90,  -0.19,
04/10 14Z,  -0.80,   8.31,   7.18,  99.90,  -0.33,
04/10 15Z,  -0.80,   8.77,   7.72,  99.90,  -0.25,
04/10 16Z,  -0.80,   8.82,   7.99,  99.90,  -0.03,  (max)
04/10 17Z,  -0.80,   8.39,   7.60,  99.90,   0.01,
04/10 18Z,  -0.80,   7.62,   6.77,  99.90,  -0.05,
04/10 19Z,  -0.80,   6.61,   5.75,  99.90,  -0.06,
04/10 20Z,  -0.80,   5.43,   4.28,  99.90,  -0.35,
04/10 21Z,  -0.80,   4.21,   2.99,  99.90,  -0.42,
04/10 22Z,  -0.80,   3.19,   2.23,  99.90,  -0.16,
04/10 23Z,  -0.80,   2.62,   1.74,  99.90,  -0.08,  (min)
04/11 00Z,  -0.80,   2.58,   1.79,  99.90,   0.01,
04/11 01Z,  -0.90,   3.03,   2.36,  99.90,   0.23,
04/11 02Z,  -0.90,   3.89,   3.17,  99.90,   0.18,
04/11 03Z,  -0.90,   5.09,   4.33,  99.90,   0.14,
04/11 04Z,  -0.80,   6.27,   5.64,  99.90,   0.17,
04/11 05Z,  -0.80,   7.09,   6.27,  99.90,  -0.02,
04/11 06Z,  -0.80,   7.49,   6.88,  99.90,   0.19,
04/11 07Z,  -0.80,   7.55,   7.08,  99.90,   0.33,  (max)
04/11 08Z,  -0.80,   7.30,   6.71,  99.90,   0.21,
04/11 09Z,  -0.80,   6.84,   6.19,  99.90,   0.15,
04/11 10Z,  -0.80,   6.36,   5.87,  99.90,   0.31,
04/11 11Z,  -0.80,   6.08,   5.47,  99.90,   0.19,
04/11 12Z,  -0.80,   6.12,   5.27,  99.90,  -0.05,  (min)
04/11 13Z,  -0.80,   6.40,   5.54,  99.90,  -0.06,
04/11 14Z,  -0.80,   6.86,   5.98,  99.90,  -0.08,
04/11 15Z,  -0.80,   7.51,   6.73,  99.90,   0.02,
04/11 16Z,  -0.70,   8.17,   7.37,  99.90,  -0.10,
04/11 17Z,  -0.70,   8.53,   7.69,  99.90,  -0.14,
04/11 18Z,  -0.70,   8.44,   7.72,  99.90,  -0.02,  (max)
04/11 19Z,  -0.70,   7.96,   7.27,  99.90,   0.01,
04/11 20Z,  -0.70,   7.09,   6.27,  99.90,  -0.12,
04/11 21Z,  -0.70,   5.86,   4.99,  99.90,  -0.17,
04/11 22Z,  -0.70,   4.45,   3.57,  99.90,  -0.18,
04/11 23Z,  -0.70,   3.18,   2.46,  99.90,  -0.02,
04/12 00Z,  -0.70,   2.37,   1.70,  99.90,   0.03,
04/12 01Z,  -0.70,   2.17,   1.67,  99.90,   0.20,  (min)
04/12 02Z,  -0.70,   2.57,   2.16,  99.90,   0.29,
04/12 03Z,  -0.70,   3.58,   3.15,  99.90,   0.27,
04/12 04Z,  -0.70,   5.05,   4.43,  99.90,   0.08,
04/12 05Z,  -0.70,   6.54,   6.11,  99.90,   0.27,
04/12 06Z,  -0.70,   7.64,   7.32,  99.90,   0.38,
04/12 07Z,  -0.70,   8.23,   7.83,  99.90,   0.30,
04/12 08Z,  -0.70,   8.31,   7.97,  99.90,   0.36,  (max)
04/12 09Z,  -0.70,   7.87,   7.50,  99.90,   0.33,
04/12 10Z,  -0.70,   7.05,   6.61,  99.90,   0.26,
04/12 11Z,  -0.70,   6.13,   5.83,  99.90,   0.40,
04/12 12Z,  -0.70,   5.43,   5.28,  99.90,   0.55,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/12 13Z,  -0.70,   5.14,  99.90,   4.96,   0.52,  (min)
04/12 14Z,  -0.70,   5.29,  99.90,   5.07,   0.48,
04/12 15Z,  -0.70,   5.85,  99.90,   5.59,   0.44,
04/12 16Z,  -0.70,   6.83,  99.90,   6.53,   0.40,
04/12 17Z,  -0.60,   7.93,  99.90,   7.70,   0.36,
04/12 18Z,  -0.50,   8.70,  99.90,   8.53,   0.33,
04/12 19Z,  -0.50,   8.94,  99.90,   8.73,   0.29,  (max)
04/12 20Z,  -0.50,   8.60,  99.90,   8.35,   0.25,
04/12 21Z,  -0.50,   7.63,  99.90,   7.34,   0.21,
04/12 22Z,  -0.60,   6.12,  99.90,   5.69,   0.18,
04/12 23Z,  -0.60,   4.36,  99.90,   3.90,   0.14,
04/13 00Z,  -0.60,   2.80,  99.90,   2.30,   0.10,
04/13 01Z,  -0.70,   1.83,  99.90,   1.22,   0.10,
04/13 02Z,  -0.70,   1.63,  99.90,   1.02,   0.10,  (min)
04/13 03Z,  -0.70,   2.23,  99.90,   1.63,   0.10,
04/13 04Z,  -0.70,   3.64,  99.90,   3.04,   0.10,
04/13 05Z,  -0.60,   5.56,  99.90,   5.06,   0.10,
04/13 06Z,  -0.50,   7.42,  99.90,   7.02,   0.10,
04/13 07Z,  -0.50,   8.73,  99.90,   8.33,   0.10,
04/13 08Z,  -0.40,   9.33,  99.90,   9.03,   0.10,  (max)
04/13 09Z,  -0.40,   9.14,  99.90,   8.84,   0.10,
04/13 10Z,  -0.30,   8.20,  99.90,   8.00,   0.10,
04/13 11Z,  -0.30,   6.79,  99.90,   6.58,   0.10,
04/13 12Z,  -0.20,   5.32,  99.90,   5.22,   0.10,
04/13 13Z,  -0.20,   4.22,  99.90,   4.12,   0.10,
04/13 14Z,  -0.20,   3.76,  99.90,   3.66,   0.10,  (min)
04/13 15Z,  -0.20,   3.99,  99.90,   3.89,   0.10,
04/13 16Z,  -0.20,   4.93,  99.90,   4.83,   0.10,
04/13 17Z,  -0.20,   6.46,  99.90,   6.36,   0.10,
04/13 18Z,  -0.20,   8.10,  99.90,   8.00,   0.10,
04/13 19Z,  -0.20,   9.29,  99.90,   9.19,   0.10,
04/13 20Z,  -0.20,   9.73,  99.90,   9.63,   0.10,  (max)
04/13 21Z,  -0.10,   9.31,  99.90,   9.31,   0.10,
04/13 22Z,  -0.10,   8.02,  99.90,   8.02,   0.10,
04/13 23Z,  -0.10,   6.08,  99.90,   6.08,   0.10,
04/14 00Z,  -0.20,   3.96,  99.90,   3.86,   0.10,
04/14 01Z,  -0.20,   2.18,  99.90,   2.08,   0.10,
04/14 02Z,  -0.30,   1.22,  99.90,   1.01,   0.10,  (min)
04/14 03Z,  -0.30,   1.25,  99.90,   1.05,   0.10,
04/14 04Z,  -0.30,   2.30,  99.90,   2.10,   0.10,
04/14 05Z,  -0.30,   4.25,  99.90,   4.05,   0.10,
04/14 06Z,  -0.20,   6.68,  99.90,   6.58,   0.10,
04/14 07Z,  -0.20,   8.83,  99.90,   8.73,   0.10,
04/14 08Z,  -0.20,  10.17,  99.90,  10.07,   0.10,
04/14 09Z,  -0.20,  10.48,  99.90,  10.38,   0.10,  (max)
04/14 10Z,  -0.20,   9.72,  99.90,   9.62,   0.10,
04/14 11Z,  -0.30,   8.07,  99.90,   7.86,   0.10,
04/14 12Z,  -0.30,   5.96,  99.90,   5.76,   0.10,
04/14 13Z,  -0.40,   3.97,  99.90,   3.67,   0.10,
04/14 14Z,  -0.40,   2.62,  99.90,   2.31,   0.10,
04/14 15Z,  -0.50,   2.20,  99.90,   1.80,   0.10,  (min)
04/14 16Z,  -0.50,   2.77,  99.90,   2.37,   0.10,
04/14 17Z,  -0.50,   4.28,  99.90,   3.88,   0.10,
04/14 18Z,  -0.50,   6.47,  99.90,   6.07,   0.10,
04/14 19Z,  -0.50,   8.66,  99.90,   8.26,   0.10,
04/14 20Z,  -0.50,  10.16,  99.90,   9.76,   0.10,
04/14 21Z,  -0.50,  10.60,  99.90,  10.19,   0.10,  (max)
04/14 22Z,  -0.40,   9.88,  99.90,   9.58,   0.10,
04/14 23Z,  -0.40,   8.13,  99.90,   7.83,   0.10,
04/15 00Z,  -0.50,   5.75,  99.90,   5.35,   0.10,
04/15 01Z,  -0.50,   3.35,  99.90,   2.94,   0.10,
04/15 02Z,  -0.50,   1.54,  99.90,   1.14,   0.10,
04/15 03Z,  -0.60,   0.80,  99.90,   0.30,   0.10,  (min)
04/15 04Z,  -0.60,   1.28,  99.90,   0.78,   0.10,
04/15 05Z,  -0.60,   2.91,  99.90,   2.41,   0.10,
04/15 06Z,  -0.60,   5.46,  99.90,   4.96,   0.10,
04/15 07Z,  -0.60,   8.30,  99.90,   7.80,   0.10,
04/15 08Z,  -0.50,  10.56,  99.90,  10.15,   0.10,
04/15 09Z,  -0.50,  11.64,  99.90,  11.24,   0.10,  (max)
04/15 10Z,  -0.50,  11.36,  99.90,  10.96,   0.10,
04/15 11Z,  -0.40,   9.82,  99.90,   9.52,   0.10,
04/15 12Z,  -0.40,   7.37,  99.90,   7.07,   0.10,
04/15 13Z,  -0.50,   4.63,  99.90,   4.23,   0.10,
04/15 14Z,  -0.50,   2.27,  99.90,   1.87,   0.10,
04/15 15Z,  -0.50,   0.87,  99.90,   0.47,   0.10,
04/15 16Z,  -0.50,   0.72,  99.90,   0.32,   0.10,  (min)
04/15 17Z,  -0.60,   1.81,  99.90,   1.31,   0.10,
04/15 18Z,  -0.60,   4.01,  99.90,   3.51,   0.10,
04/15 19Z,  -0.60,   6.86,  99.90,   6.36,   0.10,
04/15 20Z,  -0.50,   9.49,  99.90,   9.09,   0.10,
04/15 21Z,  -0.50,  11.09,  99.90,  10.69,   0.10,
04/15 22Z,  -0.50,  11.30,  99.90,  10.90,   0.10,  (max)
04/15 23Z,  -0.40,  10.15,  99.90,   9.85,   0.10,
04/16 00Z,  -0.40,   7.92,  99.90,   7.62,   0.10,