EXTRA-TROPICAL  STORM  SURGE
N A T I O N A L    O C E A N I C    A N D    A T M O S P H E R I C    A D M I N I S T R A T I O N

  • This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
  • The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.
About
Manual
Disclaimer
Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
Alaska
Gulf of Alaska
Status
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
#Nikiski, AK : 05/17/2026 05:22:23 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/15 12Z,   0.00,  22.05,  21.60,  99.90,  -0.45,  (max)
05/15 13Z,   0.00,  20.05,  19.52,  99.90,  -0.53,
05/15 14Z,   0.00,  15.90,  15.19,  99.90,  -0.71,
05/15 15Z,   0.00,  10.68,  10.40,  99.90,  -0.28,
05/15 16Z,   0.00,   5.49,   5.80,  99.90,   0.31,
05/15 17Z,   0.00,   0.94,   1.30,  99.90,   0.36,
05/15 18Z,   0.00,  -2.20,  -2.00,  99.90,   0.20,
05/15 19Z,  -0.10,  -2.46,  -3.00,  99.90,  -0.44,  (min)
05/15 20Z,  -0.10,   0.84,   0.80,  99.90,   0.06,
05/15 21Z,  -0.10,   6.33,   6.79,  99.90,   0.56,
05/15 22Z,  -0.10,  12.09,  12.05,  99.90,   0.06,
05/15 23Z,  -0.10,  16.90,  16.41,  99.90,  -0.39,
05/16 00Z,  -0.10,  19.89,  19.36,  99.90,  -0.43,
05/16 01Z,  -0.10,  20.32,  20.01,  99.90,  -0.21,  (max)
05/16 02Z,  -0.10,  18.20,  17.95,  99.90,  -0.15,
05/16 03Z,  -0.10,  14.42,  13.83,  99.90,  -0.49,
05/16 04Z,  -0.10,  10.20,   9.53,  99.90,  -0.57,
05/16 05Z,  -0.20,   6.42,   5.87,  99.90,  -0.35,
05/16 06Z,  -0.20,   3.67,   2.88,  99.90,  -0.59,
05/16 07Z,  -0.20,   3.13,   2.16,  99.90,  -0.77,  (min)
05/16 08Z,  -0.10,   5.87,   5.92,  99.90,   0.15,
05/16 09Z,  -0.10,  11.08,  11.54,  99.90,   0.56,
05/16 10Z,  -0.10,  16.58,  16.29,  99.90,  -0.19,
05/16 11Z,  -0.10,  20.80,  20.18,  99.90,  -0.52,
05/16 12Z,  -0.10,  22.98,  22.47,  99.90,  -0.41,  (max)
05/16 13Z,  -0.10,  22.57,  22.13,  99.90,  -0.34,
05/16 14Z,  -0.10,  19.50,  18.88,  99.90,  -0.52,
05/16 15Z,  -0.20,  14.48,  13.83,  99.90,  -0.45,
05/16 16Z,  -0.20,   8.69,   8.89,  99.90,   0.40,
05/16 17Z,  -0.20,   3.18,   3.92,  99.90,   0.94,
05/16 18Z,  -0.20,  -1.42,  -0.57,  99.90,   1.05,
05/16 19Z,  -0.30,  -4.11,  -3.67,  99.90,   0.74,
05/16 20Z,  -0.30,  -3.36,  -3.80,  99.90,  -0.14,  (min)
05/16 21Z,  -0.30,   1.09,   1.49,  99.90,   0.70,
05/16 22Z,  -0.30,   7.44,   7.91,  99.90,   0.77,
05/16 23Z,  -0.30,  13.58,  13.28,  99.90,   0.00,
05/17 00Z,  -0.30,  18.34,  17.65,  99.90,  -0.39,
05/17 01Z,  -0.40,  20.87,  20.39,  99.90,  -0.08,
05/17 02Z,  -0.40,  20.66,  20.57,  99.90,   0.31,  (max)
05/17 03Z,  -0.30,  17.99,  17.92,  99.90,   0.23,
05/17 04Z,  -0.30,  13.84,  13.39,  99.90,  -0.15,
05/17 05Z,  -0.30,   9.46,   9.03,  99.90,  -0.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/17 06Z,  -0.30,   5.70,  99.90,   5.29,  -0.11,
05/17 07Z,  -0.30,   3.30,  99.90,   2.90,  -0.09,  (min)
05/17 08Z,  -0.40,   3.55,  99.90,   3.08,  -0.08,
05/17 09Z,  -0.40,   7.26,  99.90,   6.80,  -0.06,
05/17 10Z,  -0.40,  13.07,  99.90,  12.64,  -0.04,
05/17 11Z,  -0.40,  18.60,  99.90,  18.18,  -0.02,
05/17 12Z,  -0.50,  22.35,  99.90,  21.85,   0.00,
05/17 13Z,  -0.60,  23.72,  99.90,  23.14,   0.02,  (max)
05/17 14Z,  -0.70,  22.37,  99.90,  21.71,   0.04,
05/17 15Z,  -0.60,  18.49,  99.90,  17.95,   0.06,
05/17 16Z,  -0.60,  12.93,  99.90,  12.41,   0.08,
05/17 17Z,  -0.60,   6.86,  99.90,   6.36,   0.10,
05/17 18Z,  -0.50,   1.28,  99.90,   0.88,   0.10,
05/17 19Z,  -0.50,  -3.12,  99.90,  -3.52,   0.10,
05/17 20Z,  -0.50,  -5.14,  99.90,  -5.55,   0.10,  (min)
05/17 21Z,  -0.50,  -3.35,  99.90,  -3.75,   0.10,
05/17 22Z,  -0.50,   2.02,  99.90,   1.62,   0.10,
05/17 23Z,  -0.50,   8.79,  99.90,   8.39,   0.10,
05/18 00Z,  -0.50,  14.89,  99.90,  14.49,   0.10,
05/18 01Z,  -0.40,  19.28,  99.90,  18.98,   0.10,
05/18 02Z,  -0.40,  21.26,  99.90,  20.96,   0.10,  (max)
05/18 03Z,  -0.40,  20.52,  99.90,  20.22,   0.10,
05/18 04Z,  -0.30,  17.46,  99.90,  17.26,   0.10,
05/18 05Z,  -0.30,  13.14,  99.90,  12.94,   0.10,
05/18 06Z,  -0.20,   8.76,  99.90,   8.66,   0.10,
05/18 07Z,  -0.20,   5.16,  99.90,   5.06,   0.10,
05/18 08Z,  -0.20,   3.23,  99.90,   3.13,   0.10,  (min)
05/18 09Z,  -0.20,   4.29,  99.90,   4.19,   0.10,
05/18 10Z,  -0.20,   8.73,  99.90,   8.63,   0.10,
05/18 11Z,  -0.20,  14.75,  99.90,  14.64,   0.10,
05/18 12Z,  -0.20,  19.91,  99.90,  19.81,   0.10,
05/18 13Z,  -0.20,  23.00,  99.90,  22.89,   0.10,
05/18 14Z,  -0.20,  23.61,  99.90,  23.51,   0.10,  (max)
05/18 15Z,  -0.20,  21.60,  99.90,  21.49,   0.10,
05/18 16Z,  -0.30,  17.27,  99.90,  17.07,   0.10,
05/18 17Z,  -0.40,  11.51,  99.90,  11.20,   0.10,
05/18 18Z,  -0.40,   5.45,  99.90,   5.15,   0.10,
05/18 19Z,  -0.40,   0.04,  99.90,  -0.26,   0.10,
05/18 20Z,  -0.40,  -3.95,  99.90,  -4.26,   0.10,
05/18 21Z,  -0.40,  -5.22,  99.90,  -5.52,   0.10,  (min)
05/18 22Z,  -0.40,  -2.54,  99.90,  -2.84,   0.10,
05/18 23Z,  -0.40,   3.35,  99.90,   3.05,   0.10,
05/19 00Z,  -0.40,  10.06,  99.90,   9.75,   0.10,
05/19 01Z,  -0.40,  15.75,  99.90,  15.45,   0.10,
05/19 02Z,  -0.40,  19.63,  99.90,  19.33,   0.10,
05/19 03Z,  -0.40,  21.13,  99.90,  20.82,   0.10,  (max)
05/19 04Z,  -0.40,  20.02,  99.90,  19.72,   0.10,
05/19 05Z,  -0.40,  16.78,  99.90,  16.48,   0.10,
05/19 06Z,  -0.40,  12.46,  99.90,  12.16,   0.10,
05/19 07Z,  -0.40,   8.22,  99.90,   7.92,   0.10,
05/19 08Z,  -0.40,   4.91,  99.90,   4.61,   0.10,
05/19 09Z,  -0.40,   3.49,  99.90,   3.19,   0.10,  (min)
05/19 10Z,  -0.30,   5.21,  99.90,   5.01,   0.10,
05/19 11Z,  -0.30,  10.01,  99.90,   9.81,   0.10,
05/19 12Z,  -0.20,  15.77,  99.90,  15.67,   0.10,
05/19 13Z,  -0.30,  20.29,  99.90,  20.09,   0.10,
05/19 14Z,  -0.30,  22.70,  99.90,  22.50,   0.10,
05/19 15Z,  -0.30,  22.79,  99.90,  22.59,   0.10,  (max)
05/19 16Z,  -0.30,  20.46,  99.90,  20.26,   0.10,
05/19 17Z,  -0.30,  16.05,  99.90,  15.85,   0.10,
05/19 18Z,  -0.30,  10.39,  99.90,  10.19,   0.10,
05/19 19Z,  -0.30,   4.60,  99.90,   4.40,   0.10,
05/19 20Z,  -0.30,  -0.42,  99.90,  -0.62,   0.10,
05/19 21Z,  -0.30,  -3.87,  99.90,  -4.07,   0.10,
05/19 22Z,  -0.40,  -4.42,  99.90,  -4.72,   0.10,  (min)
05/19 23Z,  -0.40,  -1.17,  99.90,  -1.47,   0.10,
05/20 00Z,  -0.40,   4.75,  99.90,   4.45,   0.10,
05/20 01Z,  -0.50,  10.98,  99.90,  10.58,   0.10,
05/20 02Z,  -0.50,  16.08,  99.90,  15.68,   0.10,
05/20 03Z,  -0.50,  19.46,  99.90,  19.06,   0.10,
05/20 04Z,  -0.50,  20.62,  99.90,  20.22,   0.10,  (max)
05/20 05Z,  -0.50,  19.35,  99.90,  18.94,   0.10,
05/20 06Z,  -0.50,  16.10,  99.90,  15.70,   0.10,
05/20 07Z,  -0.50,  11.93,  99.90,  11.53,   0.10,
05/20 08Z,  -0.50,   7.97,  99.90,   7.57,   0.10,
05/20 09Z,  -0.50,   5.01,  99.90,   4.61,   0.10,
05/20 10Z,  -0.40,   4.03,  99.90,   3.73,   0.10,  (min)
05/20 11Z,  -0.40,   6.11,  99.90,   5.81,   0.10,
05/20 12Z,  -0.30,  10.82,  99.90,  10.61,   0.10,
05/20 13Z,  -0.30,  15.96,  99.90,  15.75,   0.10,
05/20 14Z,  -0.30,  19.72,  99.90,  19.52,   0.10,
05/20 15Z,  -0.30,  21.61,  99.90,  21.41,   0.10,  (max)
05/20 16Z,  -0.40,  21.48,  99.90,  21.18,   0.10,
05/20 17Z,  -0.40,  19.19,  99.90,  18.88,   0.10,
05/20 18Z,  -0.40,  14.99,  99.90,  14.69,   0.10,
05/20 19Z,  -0.40,   9.71,  99.90,   9.40,   0.10,
05/20 20Z,  -0.40,   4.41,  99.90,   4.11,   0.10,
05/20 21Z,  -0.30,  -0.07,  99.90,  -0.27,   0.10,
05/20 22Z,  -0.30,  -2.95,  99.90,  -3.16,   0.10,
05/20 23Z,  -0.30,  -2.99,  99.90,  -3.19,   0.10,  (min)
05/21 00Z,  -0.20,   0.44,  99.90,   0.33,   0.10,