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 : 04/23/2025 09:20:51 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 18Z,  -0.50,  14.51,  13.61,  99.90,  -0.40,
04/21 19Z,  -0.50,  15.07,  14.31,  99.90,  -0.26,  (max)
04/21 20Z,  -0.50,  15.10,  14.25,  99.90,  -0.35,
04/21 21Z,  -0.50,  14.14,  13.20,  99.90,  -0.44,
04/21 22Z,  -0.50,  12.13,  11.44,  99.90,  -0.19,
04/21 23Z,  -0.40,   9.59,   9.19,  99.90,   0.00,
04/22 00Z,  -0.40,   7.23,   6.83,  99.90,   0.00,
04/22 01Z,  -0.40,   5.26,   4.63,  99.90,  -0.23,
04/22 02Z,  -0.40,   3.75,   3.25,  99.90,  -0.10,
04/22 03Z,  -0.40,   3.44,   3.20,  99.90,   0.16,  (min)
04/22 04Z,  -0.40,   4.97,   4.80,  99.90,   0.23,
04/22 05Z,  -0.40,   7.59,   7.27,  99.90,   0.08,
04/22 06Z,  -0.40,  10.30,  10.12,  99.90,   0.22,
04/22 07Z,  -0.40,  12.89,  12.86,  99.90,   0.37,
04/22 08Z,  -0.40,  15.21,  15.07,  99.90,   0.26,
04/22 09Z,  -0.40,  16.51,  16.34,  99.90,   0.23,  (max)
04/22 10Z,  -0.30,  16.26,  16.29,  99.90,   0.33,
04/22 11Z,  -0.30,  14.68,  14.99,  99.90,   0.61,
04/22 12Z,  -0.30,  12.58,  13.03,  99.90,   0.75,
04/22 13Z,  -0.30,  10.55,  10.96,  99.90,   0.71,
04/22 14Z,  -0.30,   8.72,   9.10,  99.90,   0.68,
04/22 15Z,  -0.30,   7.61,   7.95,  99.90,   0.64,  (min)
04/22 16Z,  -0.30,   8.10,   8.06,  99.90,   0.26,
04/22 17Z,  -0.30,   9.99,   9.35,  99.90,  -0.34,
04/22 18Z,  -0.30,  12.09,  11.16,  99.90,  -0.63,
04/22 19Z,  -0.30,  13.83,  12.95,  99.90,  -0.58,
04/22 20Z,  -0.30,  15.24,  14.29,  99.90,  -0.65,
04/22 21Z,  -0.30,  15.91,  14.78,  99.90,  -0.83,  (max)
04/22 22Z,  -0.30,  15.26,  14.15,  99.90,  -0.81,
04/22 23Z,  -0.30,  13.26,  12.35,  99.90,  -0.61,
04/23 00Z,  -0.40,  10.52,   9.88,  99.90,  -0.24,
04/23 01Z,  -0.40,   7.75,   7.23,  99.90,  -0.12,
04/23 02Z,  -0.40,   5.19,   4.72,  99.90,  -0.07,
04/23 03Z,  -0.40,   3.14,   2.83,  99.90,   0.09,
04/23 04Z,  -0.50,   2.67,   2.39,  99.90,   0.22,  (min)
04/23 05Z,  -0.50,   4.37,   4.04,  99.90,   0.17,
04/23 06Z,  -0.50,   7.40,   6.94,  99.90,   0.04,
04/23 07Z,  -0.50,  10.71,  10.17,  99.90,  -0.04,
04/23 08Z,  -0.50,  13.95,  13.29,  99.90,  -0.16,
04/23 09Z,  -0.50,  16.65,  15.83,  99.90,  -0.32,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/23 10Z,  -0.50,  17.91,  99.90,  17.11,  -0.30,  (max)
04/23 11Z,  -0.50,  17.27,  99.90,  16.49,  -0.28,
04/23 12Z,  -0.60,  15.12,  99.90,  14.26,  -0.26,
04/23 13Z,  -0.60,  12.32,  99.90,  11.49,  -0.24,
04/23 14Z,  -0.60,   9.48,  99.90,   8.66,  -0.22,
04/23 15Z,  -0.60,   6.86,  99.90,   6.06,  -0.20,
04/23 16Z,  -0.60,   5.33,  99.90,   4.55,  -0.17,  (min)
04/23 17Z,  -0.60,   5.92,  99.90,   5.17,  -0.15,
04/23 18Z,  -0.60,   8.31,  99.90,   7.58,  -0.13,
04/23 19Z,  -0.60,  11.21,  99.90,  10.50,  -0.11,
04/23 20Z,  -0.60,  13.96,  99.90,  13.27,  -0.09,
04/23 21Z,  -0.60,  16.25,  99.90,  15.58,  -0.07,
04/23 22Z,  -0.60,  17.36,  99.90,  16.69,  -0.07,  (max)
04/23 23Z,  -0.60,  16.68,  99.90,  16.01,  -0.07,
04/24 00Z,  -0.60,  14.33,  99.90,  13.65,  -0.07,
04/24 01Z,  -0.60,  11.06,  99.90,  10.39,  -0.07,
04/24 02Z,  -0.50,   7.66,  99.90,   7.09,  -0.07,
04/24 03Z,  -0.50,   4.47,  99.90,   3.90,  -0.07,
04/24 04Z,  -0.50,   2.11,  99.90,   1.54,  -0.07,
04/24 05Z,  -0.50,   1.87,  99.90,   1.30,  -0.07,  (min)
04/24 06Z,  -0.50,   4.21,  99.90,   3.64,  -0.07,
04/24 07Z,  -0.50,   8.03,  99.90,   7.46,  -0.07,
04/24 08Z,  -0.40,  12.14,  99.90,  11.67,  -0.07,
04/24 09Z,  -0.40,  15.96,  99.90,  15.48,  -0.07,
04/24 10Z,  -0.40,  18.71,  99.90,  18.24,  -0.07,
04/24 11Z,  -0.40,  19.48,  99.90,  19.00,  -0.07,  (max)
04/24 12Z,  -0.30,  18.01,  99.90,  17.63,  -0.07,
04/24 13Z,  -0.30,  14.91,  99.90,  14.53,  -0.07,
04/24 14Z,  -0.30,  11.17,  99.90,  10.80,  -0.07,
04/24 15Z,  -0.30,   7.42,  99.90,   7.05,  -0.07,
04/24 16Z,  -0.30,   4.16,  99.90,   3.79,  -0.07,
04/24 17Z,  -0.30,   2.59,  99.90,   2.21,  -0.07,  (min)
04/24 18Z,  -0.30,   3.76,  99.90,   3.38,  -0.07,
04/24 19Z,  -0.30,   7.09,  99.90,   6.72,  -0.07,
04/24 20Z,  -0.30,  11.10,  99.90,  10.73,  -0.07,
04/24 21Z,  -0.30,  14.92,  99.90,  14.54,  -0.07,
04/24 22Z,  -0.30,  17.87,  99.90,  17.50,  -0.07,
04/24 23Z,  -0.30,  19.06,  99.90,  18.69,  -0.07,  (max)
04/25 00Z,  -0.30,  17.97,  99.90,  17.60,  -0.07,
04/25 01Z,  -0.30,  14.97,  99.90,  14.60,  -0.07,
04/25 02Z,  -0.30,  11.02,  99.90,  10.65,  -0.07,
04/25 03Z,  -0.30,   7.00,  99.90,   6.63,  -0.07,
04/25 04Z,  -0.20,   3.37,  99.90,   3.10,  -0.07,
04/25 05Z,  -0.20,   1.06,  99.90,   0.79,  -0.07,  (min)
04/25 06Z,  -0.20,   1.50,  99.90,   1.23,  -0.07,
04/25 07Z,  -0.20,   4.85,  99.90,   4.57,  -0.07,
04/25 08Z,  -0.20,   9.64,  99.90,   9.37,  -0.07,
04/25 09Z,  -0.20,  14.49,  99.90,  14.21,  -0.07,
04/25 10Z,  -0.10,  18.55,  99.90,  18.38,  -0.07,
04/25 11Z,  -0.10,  20.89,  99.90,  20.72,  -0.07,  (max)
04/25 12Z,   0.00,  20.72,  99.90,  20.65,  -0.07,
04/25 13Z,   0.00,  18.08,  99.90,  18.01,  -0.07,
04/25 14Z,   0.00,  13.87,  99.90,  13.79,  -0.07,
04/25 15Z,   0.00,   9.16,  99.90,   9.09,  -0.07,
04/25 16Z,  -0.10,   4.66,  99.90,   4.49,  -0.07,
04/25 17Z,  -0.10,   1.09,  99.90,   0.92,  -0.07,
04/25 18Z,  -0.10,  -0.08,  99.90,  -0.26,  -0.07,  (min)
04/25 19Z,  -0.10,   2.09,  99.90,   1.91,  -0.07,
04/25 20Z,  -0.10,   6.62,  99.90,   6.45,  -0.07,
04/25 21Z,  -0.10,  11.79,  99.90,  11.62,  -0.07,
04/25 22Z,  -0.10,  16.45,  99.90,  16.28,  -0.07,
04/25 23Z,  -0.10,  19.68,  99.90,  19.51,  -0.07,
04/26 00Z,  -0.10,  20.55,  99.90,  20.37,  -0.07,  (max)
04/26 01Z,  -0.10,  18.77,  99.90,  18.60,  -0.07,
04/26 02Z,  -0.10,  15.02,  99.90,  14.85,  -0.07,
04/26 03Z,  -0.10,  10.45,  99.90,  10.28,  -0.07,
04/26 04Z,  -0.10,   5.98,  99.90,   5.80,  -0.07,
04/26 05Z,  -0.10,   2.22,  99.90,   2.05,  -0.07,
04/26 06Z,  -0.10,   0.40,  99.90,   0.23,  -0.07,  (min)
04/26 07Z,  -0.20,   1.88,  99.90,   1.61,  -0.07,
04/26 08Z,  -0.20,   6.40,  99.90,   6.12,  -0.07,
04/26 09Z,  -0.20,  12.09,  99.90,  11.81,  -0.07,
04/26 10Z,  -0.20,  17.35,  99.90,  17.08,  -0.07,
04/26 11Z,  -0.10,  21.19,  99.90,  21.02,  -0.07,
04/26 12Z,  -0.10,  22.66,  99.90,  22.49,  -0.07,  (max)
04/26 13Z,  -0.10,  21.25,  99.90,  21.07,  -0.07,
04/26 14Z,  -0.10,  17.35,  99.90,  17.18,  -0.07,
04/26 15Z,  -0.20,  12.09,  99.90,  11.82,  -0.07,
04/26 16Z,  -0.20,   6.61,  99.90,   6.34,  -0.07,
04/26 17Z,  -0.20,   1.64,  99.90,   1.37,  -0.07,
04/26 18Z,  -0.30,  -1.83,  99.90,  -2.20,  -0.07,
04/26 19Z,  -0.30,  -2.17,  99.90,  -2.55,  -0.07,  (min)
04/26 20Z,  -0.30,   1.24,  99.90,   0.87,  -0.07,
04/26 21Z,  -0.30,   6.99,  99.90,   6.62,  -0.07,
04/26 22Z,  -0.30,  13.06,  99.90,  12.69,  -0.07,
04/26 23Z,  -0.30,  18.15,  99.90,  17.78,  -0.07,
04/27 00Z,  -0.30,  21.22,  99.90,  20.85,  -0.07,
04/27 01Z,  99.90,  21.47,  99.90,  99.90,  -0.07,
04/27 02Z,  99.90,  18.94,  99.90,  99.90,  -0.07,
04/27 03Z,  99.90,  14.54,  99.90,  99.90,  -0.07,
04/27 04Z,  99.90,   9.55,  99.90,  99.90,  -0.07,
04/27 05Z,  99.90,   4.91,  99.90,  99.90,  -0.07,
04/27 06Z,  99.90,   1.39,  99.90,  99.90,  -0.07,