EXTRA-TROPICAL  STORM  SURGE
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Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
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Alaska
Gulf of Alaska
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Stations
Ketchikan, AK
Sitka, AK
Juneau, AK
Skagway, AK
Elfin Cove, AK
Yakutat, AK
Cordova, AK
Valdez, AK
Seward, AK
Seldovia, AK
Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
Sand Point, AK
King Cove, AK
Adak Island, AK
Atka, AK
Unalaska, AK
Surge List
Gulf of Alaska
#King Cove, AK : 05/17/2026 21:21:12 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 06Z,   0.30,   3.98,   4.88,  99.90,   0.60,
05/16 07Z,   0.30,   5.23,   6.10,  99.90,   0.57,
05/16 08Z,   0.30,   6.59,   7.43,  99.90,   0.54,
05/16 09Z,   0.30,   7.66,   8.69,  99.90,   0.73,  0.15 ft above HAT
05/16 10Z,   0.30,   8.02,   8.95,  99.90,   0.63,  0.41 ft above HAT  (max)
05/16 11Z,   0.30,   7.48,   8.32,  99.90,   0.54,
05/16 12Z,   0.40,   6.15,   7.08,  99.90,   0.53,
05/16 13Z,   0.40,   4.29,   5.22,  99.90,   0.53,
05/16 14Z,   0.40,   2.11,   3.14,  99.90,   0.63,
05/16 15Z,   0.30,   0.04,   0.97,  99.90,   0.63,
05/16 16Z,   0.30,  -1.39,  -0.46,  99.90,   0.63,
05/16 17Z,   0.30,  -1.87,  -0.74,  99.90,   0.83,  (min)
05/16 18Z,   0.30,  -1.44,  -0.36,  99.90,   0.78,
05/16 19Z,   0.40,  -0.27,   0.55,  99.90,   0.42,
05/16 20Z,   0.40,   1.44,   2.22,  99.90,   0.38,
05/16 21Z,   0.40,   3.35,   4.27,  99.90,   0.52,
05/16 22Z,   0.30,   4.94,   5.66,  99.90,   0.42,
05/16 23Z,   0.30,   5.85,   6.43,  99.90,   0.28,
05/17 00Z,   0.20,   6.04,   6.53,  99.90,   0.29,  (max)
05/17 01Z,   0.10,   5.66,   6.30,  99.90,   0.54,
05/17 02Z,   0.10,   4.85,   5.49,  99.90,   0.54,
05/17 03Z,   0.10,   3.84,   4.34,  99.90,   0.40,
05/17 04Z,   0.10,   3.10,   3.65,  99.90,   0.45,
05/17 05Z,   0.10,   3.00,   3.60,  99.90,   0.50,  (min)
05/17 06Z,   0.10,   3.54,   4.22,  99.90,   0.58,
05/17 07Z,   0.00,   4.56,   5.25,  99.90,   0.69,
05/17 08Z,   0.00,   5.86,   6.44,  99.90,   0.58,
05/17 09Z,  -0.10,   7.20,   7.73,  99.90,   0.63,
05/17 10Z,  -0.10,   8.11,   8.69,  99.90,   0.68,  0.15 ft above HAT
05/17 11Z,  -0.10,   8.19,   8.80,  99.90,   0.71,  0.26 ft above HAT  (max)
05/17 12Z,  -0.10,   7.36,   7.79,  99.90,   0.53,
05/17 13Z,  -0.20,   5.79,   6.20,  99.90,   0.61,
05/17 14Z,  -0.20,   3.72,   4.12,  99.90,   0.60,
05/17 15Z,  -0.30,   1.41,   1.85,  99.90,   0.74,
05/17 16Z,  -0.30,  -0.67,  -0.34,  99.90,   0.63,
05/17 17Z,  -0.30,  -1.95,  -1.49,  99.90,   0.76,
05/17 18Z,  -0.30,  -2.24,  -1.71,  99.90,   0.83,  (min)
05/17 19Z,  -0.30,  -1.63,  -1.16,  99.90,   0.77,
05/17 20Z,  -0.20,  -0.28,   0.10,  99.90,   0.58,
05/17 21Z,  -0.20,   1.59,   2.00,  99.90,   0.61,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/17 22Z,  -0.30,   3.55,  99.90,   3.84,   0.59,
05/17 23Z,  -0.40,   5.08,  99.90,   5.25,   0.56,
05/18 00Z,  -0.40,   5.91,  99.90,   6.05,   0.54,
05/18 01Z,  -0.40,   6.05,  99.90,   6.17,   0.52,  (max)
05/18 02Z,  -0.40,   5.63,  99.90,   5.74,   0.50,
05/18 03Z,  -0.40,   4.80,  99.90,   4.88,   0.48,
05/18 04Z,  -0.30,   3.84,  99.90,   4.00,   0.46,
05/18 05Z,  -0.30,   3.25,  99.90,   3.39,   0.44,  (min)
05/18 06Z,  -0.20,   3.30,  99.90,   3.52,   0.42,
05/18 07Z,  -0.20,   3.94,  99.90,   4.14,   0.40,
05/18 08Z,  -0.20,   5.00,  99.90,   5.18,   0.38,
05/18 09Z,  -0.20,   6.31,  99.90,   6.47,   0.36,
05/18 10Z,  -0.30,   7.55,  99.90,   7.61,   0.36,
05/18 11Z,  -0.40,   8.25,  99.90,   8.21,   0.36,  (max)
05/18 12Z,  -0.50,   8.10,  99.90,   7.96,   0.36,
05/18 13Z,  -0.50,   7.08,  99.90,   6.94,   0.36,
05/18 14Z,  -0.60,   5.39,  99.90,   5.15,   0.36,
05/18 15Z,  -0.60,   3.22,  99.90,   2.98,   0.36,
05/18 16Z,  -0.60,   0.91,  99.90,   0.66,   0.36,
05/18 17Z,  -0.50,  -1.03,  99.90,  -1.18,   0.36,
05/18 18Z,  -0.50,  -2.13,  99.90,  -2.28,   0.36,
05/18 19Z,  -0.40,  -2.26,  99.90,  -2.30,   0.36,  (min)
05/18 20Z,  -0.30,  -1.51,  99.90,  -1.45,   0.36,
05/18 21Z,  -0.20,  -0.05,  99.90,   0.11,   0.36,
05/18 22Z,   0.00,   1.85,  99.90,   2.21,   0.36,
05/18 23Z,   0.00,   3.73,  99.90,   4.08,   0.36,
05/19 00Z,   0.00,   5.14,  99.90,   5.50,   0.36,
05/19 01Z,  -0.10,   5.88,  99.90,   6.14,   0.36,  (max)
05/19 02Z,  -0.20,   5.97,  99.90,   6.12,   0.36,
05/19 03Z,  -0.40,   5.52,  99.90,   5.48,   0.36,
05/19 04Z,  -0.50,   4.70,  99.90,   4.56,   0.36,
05/19 05Z,  -0.50,   3.85,  99.90,   3.71,   0.36,
05/19 06Z,  -0.40,   3.40,  99.90,   3.35,   0.36,  (min)
05/19 07Z,  -0.40,   3.54,  99.90,   3.50,   0.36,
05/19 08Z,  -0.30,   4.22,  99.90,   4.28,   0.36,
05/19 09Z,  -0.30,   5.28,  99.90,   5.33,   0.36,
05/19 10Z,  -0.20,   6.51,  99.90,   6.67,   0.36,
05/19 11Z,  -0.20,   7.58,  99.90,   7.73,   0.36,
05/19 12Z,  -0.30,   8.09,  99.90,   8.15,   0.36,  (max)
05/19 13Z,  -0.30,   7.79,  99.90,   7.85,   0.36,
05/19 14Z,  -0.40,   6.69,  99.90,   6.65,   0.36,
05/19 15Z,  -0.40,   4.97,  99.90,   4.93,   0.36,
05/19 16Z,  -0.30,   2.85,  99.90,   2.91,   0.36,
05/19 17Z,  -0.30,   0.68,  99.90,   0.74,   0.36,
05/19 18Z,  -0.30,  -1.06,  99.90,  -1.00,   0.36,
05/19 19Z,  -0.20,  -1.98,  99.90,  -1.82,   0.36,  (min)
05/19 20Z,  -0.20,  -1.96,  99.90,  -1.80,   0.36,
05/19 21Z,  -0.30,  -1.13,  99.90,  -1.07,   0.36,
05/19 22Z,  -0.30,   0.33,  99.90,   0.39,   0.36,
05/19 23Z,  -0.30,   2.14,  99.90,   2.19,   0.36,
05/20 00Z,  -0.30,   3.88,  99.90,   3.93,   0.36,
05/20 01Z,  -0.40,   5.16,  99.90,   5.12,   0.36,
05/20 02Z,  -0.50,   5.80,  99.90,   5.66,   0.36,
05/20 03Z,  -0.50,   5.83,  99.90,   5.69,   0.36,  (max)
05/20 04Z,  -0.50,   5.39,  99.90,   5.25,   0.36,
05/20 05Z,  -0.50,   4.64,  99.90,   4.50,   0.36,
05/20 06Z,  -0.40,   3.88,  99.90,   3.84,   0.36,
05/20 07Z,  -0.40,   3.51,  99.90,   3.46,   0.36,  (min)
05/20 08Z,  -0.30,   3.69,  99.90,   3.75,   0.36,
05/20 09Z,  -0.30,   4.35,  99.90,   4.41,   0.36,
05/20 10Z,  -0.30,   5.31,  99.90,   5.37,   0.36,
05/20 11Z,  -0.30,   6.38,  99.90,   6.44,   0.36,
05/20 12Z,  -0.30,   7.29,  99.90,   7.35,   0.36,
05/20 13Z,  -0.40,   7.67,  99.90,   7.63,   0.36,  (max)
05/20 14Z,  -0.40,   7.30,  99.90,   7.26,   0.36,
05/20 15Z,  -0.50,   6.21,  99.90,   6.07,   0.36,
05/20 16Z,  -0.50,   4.59,  99.90,   4.45,   0.36,
05/20 17Z,  -0.50,   2.66,  99.90,   2.52,   0.36,
05/20 18Z,  -0.40,   0.71,  99.90,   0.67,   0.36,
05/20 19Z,  -0.40,  -0.81,  99.90,  -0.85,   0.36,
05/20 20Z,  -0.30,  -1.54,  99.90,  -1.48,   0.36,  (min)
05/20 21Z,  -0.30,  -1.41,  99.90,  -1.35,   0.36,
05/20 22Z,  -0.30,  -0.58,  99.90,  -0.52,   0.36,
05/20 23Z,  -0.30,   0.79,  99.90,   0.84,   0.36,
05/21 00Z,  -0.30,   2.45,  99.90,   2.51,   0.36,
05/21 01Z,  -0.30,   4.05,  99.90,   4.10,   0.36,
05/21 02Z,  -0.20,   5.19,  99.90,   5.34,   0.36,
05/21 03Z,  -0.20,   5.72,  99.90,   5.88,   0.36,
05/21 04Z,  -0.20,   5.73,  99.90,   5.89,   0.36,  (max)
05/21 05Z,  -0.30,   5.33,  99.90,   5.39,   0.36,
05/21 06Z,  -0.20,   4.63,  99.90,   4.79,   0.36,
05/21 07Z,  -0.10,   3.91,  99.90,   4.17,   0.36,
05/21 08Z,   0.00,   3.57,  99.90,   3.93,   0.36,  (min)
05/21 09Z,   0.00,   3.73,  99.90,   4.09,   0.36,
05/21 10Z,   0.00,   4.27,  99.90,   4.63,   0.36,
05/21 11Z,   0.00,   5.06,  99.90,   5.42,   0.36,
05/21 12Z,   0.00,   5.96,  99.90,   6.32,   0.36,
05/21 13Z,  99.90,   6.75,  99.90,  99.90,   0.36,
05/21 14Z,  99.90,   7.05,  99.90,  99.90,   0.36,
05/21 15Z,  99.90,   6.67,  99.90,  99.90,   0.36,
05/21 16Z,  99.90,   5.70,  99.90,  99.90,   0.36,
05/21 17Z,  99.90,   4.31,  99.90,  99.90,   0.36,
05/21 18Z,  99.90,   2.64,  99.90,  99.90,   0.36,