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 : 05/18/2025 17:22:41 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/17 00Z,   0.10,   3.70,   4.54,  99.90,   0.74,
05/17 01Z,   0.20,   8.47,   8.97,  99.90,   0.30,
05/17 02Z,   0.20,  12.73,  12.95,  99.90,   0.02,
05/17 03Z,   0.20,  15.78,  16.17,  99.90,   0.19,
05/17 04Z,   0.20,  17.63,  17.96,  99.90,   0.13,
05/17 05Z,   0.20,  17.98,  17.99,  99.90,  -0.19,  (max)
05/17 06Z,   0.20,  16.59,  16.17,  99.90,  -0.62,
05/17 07Z,   0.20,  13.81,  13.20,  99.90,  -0.81,
05/17 08Z,   0.30,  10.63,  10.37,  99.90,  -0.56,
05/17 09Z,   0.30,   8.12,   8.10,  99.90,  -0.32,
05/17 10Z,   0.30,   6.82,   6.91,  99.90,  -0.21,  (min)
05/17 11Z,   0.30,   7.17,   7.85,  99.90,   0.38,
05/17 12Z,   0.30,   9.66,  10.70,  99.90,   0.74,
05/17 13Z,   0.30,  13.54,  13.63,  99.90,  -0.21,
05/17 14Z,   0.30,  16.84,  16.21,  99.90,  -0.93,
05/17 15Z,   0.30,  18.43,  17.97,  99.90,  -0.76,
05/17 16Z,   0.30,  18.47,  18.38,  99.90,  -0.39,  (max)
05/17 17Z,   0.20,  17.21,  16.98,  99.90,  -0.43,
05/17 18Z,   0.20,  14.62,  13.98,  99.90,  -0.84,
05/17 19Z,   0.20,  10.89,  10.49,  99.90,  -0.60,
05/17 20Z,   0.10,   6.79,   7.00,  99.90,   0.11,
05/17 21Z,   0.10,   3.32,   3.49,  99.90,   0.07,
05/17 22Z,   0.10,   1.05,   0.85,  99.90,  -0.30,
05/17 23Z,   0.10,   0.26,  -0.10,  99.90,  -0.46,  (min)
05/18 00Z,   0.10,   1.59,   1.92,  99.90,   0.23,
05/18 01Z,   0.10,   5.15,   5.82,  99.90,   0.57,
05/18 02Z,   0.10,   9.53,   9.68,  99.90,   0.05,
05/18 03Z,   0.00,  13.18,  13.23,  99.90,   0.05,
05/18 04Z,   0.00,  15.72,  16.00,  99.90,   0.28,
05/18 05Z,   0.00,  17.24,  17.43,  99.90,   0.19,  (max)
05/18 06Z,   0.00,  17.37,  17.17,  99.90,  -0.20,
05/18 07Z,   0.00,  15.86,  15.35,  99.90,  -0.51,
05/18 08Z,   0.00,  13.14,  12.66,  99.90,  -0.48,
05/18 09Z,   0.00,  10.27,  10.17,  99.90,  -0.10,
05/18 10Z,   0.00,   8.18,   8.15,  99.90,  -0.03,
05/18 11Z,   0.00,   7.23,   7.20,  99.90,  -0.03,  (min)
05/18 12Z,   0.00,   7.81,   8.21,  99.90,   0.40,
05/18 13Z,   0.00,  10.28,  10.79,  99.90,   0.51,
05/18 14Z,   0.00,  13.74,  13.39,  99.90,  -0.35,
05/18 15Z,   0.00,  16.39,  15.66,  99.90,  -0.73,
05/18 16Z,  -0.10,  17.49,  17.08,  99.90,  -0.31,
05/18 17Z,  -0.10,  17.37,  17.18,  99.90,  -0.09,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 18Z,  -0.10,  16.15,  99.90,  15.97,  -0.07,
05/18 19Z,  -0.10,  13.68,  99.90,  13.52,  -0.05,
05/18 20Z,  -0.20,  10.19,  99.90,   9.95,  -0.04,
05/18 21Z,  -0.20,   6.49,  99.90,   6.27,  -0.02,
05/18 22Z,  -0.20,   3.52,  99.90,   3.32,  -0.01,
05/18 23Z,  -0.20,   1.70,  99.90,   1.51,   0.01,
05/19 00Z,  -0.20,   1.24,  99.90,   1.06,   0.02,  (min)
05/19 01Z,  -0.20,   2.74,  99.90,   2.58,   0.04,
05/19 02Z,  -0.20,   6.17,  99.90,   6.02,   0.05,
05/19 03Z,  -0.20,  10.10,  99.90,   9.97,   0.07,
05/19 04Z,  -0.20,  13.28,  99.90,  13.16,   0.08,
05/19 05Z,  -0.20,  15.57,  99.90,  15.47,   0.10,
05/19 06Z,  -0.10,  16.97,  99.90,  16.97,   0.10,
05/19 07Z,  -0.10,  17.00,  99.90,  17.00,   0.10,  (max)
05/19 08Z,   0.00,  15.45,  99.90,  15.55,   0.10,
05/19 09Z,   0.00,  12.84,  99.90,  12.94,   0.10,
05/19 10Z,   0.00,  10.22,  99.90,  10.31,   0.10,
05/19 11Z,   0.00,   8.34,  99.90,   8.44,   0.10,
05/19 12Z,   0.00,   7.43,  99.90,   7.53,   0.10,  (min)
05/19 13Z,   0.00,   7.92,  99.90,   8.02,   0.10,
05/19 14Z,   0.10,  10.14,  99.90,  10.34,   0.10,
05/19 15Z,   0.10,  13.14,  99.90,  13.34,   0.10,
05/19 16Z,   0.10,  15.36,  99.90,  15.56,   0.10,
05/19 17Z,   0.10,  16.36,  99.90,  16.56,   0.10,
05/19 18Z,   0.10,  16.43,  99.90,  16.63,   0.10,  (max)
05/19 19Z,   0.00,  15.48,  99.90,  15.58,   0.10,
05/19 20Z,   0.00,  13.28,  99.90,  13.38,   0.10,
05/19 21Z,   0.00,  10.10,  99.90,  10.20,   0.10,
05/19 22Z,   0.00,   6.78,  99.90,   6.88,   0.10,
05/19 23Z,   0.00,   4.17,  99.90,   4.27,   0.10,
05/20 00Z,   0.00,   2.53,  99.90,   2.63,   0.10,
05/20 01Z,   0.00,   2.10,  99.90,   2.20,   0.10,  (min)
05/20 02Z,   0.00,   3.56,  99.90,   3.66,   0.10,
05/20 03Z,   0.00,   6.79,  99.90,   6.89,   0.10,
05/20 04Z,   0.00,  10.40,  99.90,  10.50,   0.10,
05/20 05Z,   0.00,  13.37,  99.90,  13.47,   0.10,
05/20 06Z,   0.00,  15.66,  99.90,  15.76,   0.10,
05/20 07Z,   0.00,  17.07,  99.90,  17.17,   0.10,  (max)
05/20 08Z,   0.00,  17.04,  99.90,  17.14,   0.10,
05/20 09Z,   0.00,  15.42,  99.90,  15.52,   0.10,
05/20 10Z,   0.00,  12.82,  99.90,  12.92,   0.10,
05/20 11Z,   0.00,  10.24,  99.90,  10.34,   0.10,
05/20 12Z,   0.00,   8.27,  99.90,   8.37,   0.10,
05/20 13Z,   0.00,   7.08,  99.90,   7.18,   0.10,  (min)
05/20 14Z,   0.00,   7.25,  99.90,   7.35,   0.10,
05/20 15Z,   0.00,   9.18,  99.90,   9.28,   0.10,
05/20 16Z,   0.00,  11.91,  99.90,  12.01,   0.10,
05/20 17Z,   0.00,  14.07,  99.90,  14.17,   0.10,
05/20 18Z,   0.00,  15.37,  99.90,  15.47,   0.10,
05/20 19Z,   0.00,  15.92,  99.90,  16.01,   0.10,  (max)
05/20 20Z,   0.00,  15.39,  99.90,  15.49,   0.10,
05/20 21Z,   0.00,  13.49,  99.90,  13.59,   0.10,
05/20 22Z,   0.00,  10.55,  99.90,  10.65,   0.10,
05/20 23Z,   0.00,   7.47,  99.90,   7.57,   0.10,
05/21 00Z,   0.00,   4.97,  99.90,   5.07,   0.10,
05/21 01Z,   0.00,   3.24,  99.90,   3.34,   0.10,
05/21 02Z,   0.00,   2.67,  99.90,   2.77,   0.10,  (min)
05/21 03Z,   0.00,   4.05,  99.90,   4.15,   0.10,
05/21 04Z,   0.00,   7.19,  99.90,   7.29,   0.10,
05/21 05Z,   0.00,  10.73,  99.90,  10.83,   0.10,
05/21 06Z,   0.00,  13.77,  99.90,  13.87,   0.10,
05/21 07Z,   0.00,  16.22,  99.90,  16.32,   0.10,
05/21 08Z,   0.00,  17.67,  99.90,  17.77,   0.10,  (max)
05/21 09Z,   0.00,  17.51,  99.90,  17.61,   0.10,
05/21 10Z,   0.00,  15.66,  99.90,  15.76,   0.10,
05/21 11Z,   0.00,  12.85,  99.90,  12.95,   0.10,
05/21 12Z,   0.00,  10.02,  99.90,  10.11,   0.10,
05/21 13Z,   0.00,   7.63,  99.90,   7.73,   0.10,
05/21 14Z,   0.00,   5.96,  99.90,   6.06,   0.10,
05/21 15Z,  -0.10,   5.79,  99.90,   5.79,   0.10,  (min)
05/21 16Z,  -0.10,   7.60,  99.90,   7.60,   0.10,
05/21 17Z,  -0.20,  10.37,  99.90,  10.27,   0.10,
05/21 18Z,  -0.20,  12.87,  99.90,  12.77,   0.10,
05/21 19Z,  -0.30,  14.80,  99.90,  14.60,   0.10,
05/21 20Z,  -0.30,  15.99,  99.90,  15.79,   0.10,  (max)
05/21 21Z,  -0.30,  15.89,  99.90,  15.69,   0.10,
05/21 22Z,  -0.30,  14.20,  99.90,  14.00,   0.10,
05/21 23Z,  -0.40,  11.35,  99.90,  11.05,   0.10,
05/22 00Z,  -0.40,   8.28,  99.90,   7.98,   0.10,
05/22 01Z,  -0.40,   5.65,  99.90,   5.35,   0.10,
05/22 02Z,  -0.40,   3.66,  99.90,   3.36,   0.10,
05/22 03Z,  -0.50,   2.93,  99.90,   2.53,   0.10,  (min)
05/22 04Z,  -0.50,   4.37,  99.90,   3.97,   0.10,
05/22 05Z,  -0.50,   7.65,  99.90,   7.25,   0.10,
05/22 06Z,  -0.50,  11.37,  99.90,  10.97,   0.10,
05/22 07Z,  -0.60,  14.70,  99.90,  14.20,   0.10,
05/22 08Z,  -0.60,  17.36,  99.90,  16.86,   0.10,
05/22 09Z,  -0.60,  18.75,  99.90,  18.25,   0.10,  (max)
05/22 10Z,  -0.60,  18.24,  99.90,  17.74,   0.10,
05/22 11Z,  -0.60,  15.92,  99.90,  15.42,   0.10,
05/22 12Z,  -0.60,  12.63,  99.90,  12.13,   0.10,