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
#Seldovia, AK : 10/08/2026 19:22:54 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/07 00Z,   0.30,   8.75,   8.71,  99.90,  -0.34,
10/07 01Z,   0.20,   5.85,   5.75,  99.90,  -0.30,
10/07 02Z,   0.10,   4.31,   3.98,  99.90,  -0.43,  (min)
10/07 03Z,   0.00,   4.41,   4.06,  99.90,  -0.35,
10/07 04Z,   0.00,   6.04,   5.92,  99.90,  -0.12,
10/07 05Z,  -0.10,   8.88,   8.79,  99.90,   0.01,
10/07 06Z,   0.00,  12.21,  12.02,  99.90,  -0.19,
10/07 07Z,   0.00,  15.07,  14.96,  99.90,  -0.11,
10/07 08Z,   0.00,  16.72,  16.79,  99.90,   0.07,  (max)
10/07 09Z,   0.00,  16.73,  16.69,  99.90,  -0.04,
10/07 10Z,   0.00,  15.02,  14.72,  99.90,  -0.30,
10/07 11Z,  -0.10,  11.85,  11.47,  99.90,  -0.28,
10/07 12Z,   0.00,   7.82,   7.50,  99.90,  -0.32,
10/07 13Z,  -0.10,   3.94,   3.53,  99.90,  -0.31,
10/07 14Z,  -0.20,   1.34,   0.75,  99.90,  -0.39,
10/07 15Z,  -0.30,   0.65,   0.09,  99.90,  -0.26,  (min)
10/07 16Z,  -0.40,   1.92,   1.55,  99.90,   0.03,
10/07 17Z,  -0.40,   4.94,   4.66,  99.90,   0.12,
10/07 18Z,  -0.20,   9.06,   8.74,  99.90,  -0.12,
10/07 19Z,  -0.20,  13.24,  12.96,  99.90,  -0.08,
10/07 20Z,  -0.20,  16.46,  16.15,  99.90,  -0.11,
10/07 21Z,  -0.20,  18.00,  17.62,  99.90,  -0.18,  (max)
10/07 22Z,  -0.30,  17.54,  17.09,  99.90,  -0.15,
10/07 23Z,  -0.30,  15.17,  14.70,  99.90,  -0.17,
10/08 00Z,  -0.20,  11.36,  10.94,  99.90,  -0.22,
10/08 01Z,  -0.20,   7.08,   6.68,  99.90,  -0.20,
10/08 02Z,  -0.30,   3.62,   2.95,  99.90,  -0.37,
10/08 03Z,  -0.40,   1.98,   1.08,  99.90,  -0.50,  (min)
10/08 04Z,  -0.40,   2.45,   1.77,  99.90,  -0.28,
10/08 05Z,  -0.40,   4.84,   4.43,  99.90,  -0.01,
10/08 06Z,  -0.30,   8.61,   8.14,  99.90,  -0.17,
10/08 07Z,  -0.20,  12.76,  12.21,  99.90,  -0.35,
10/08 08Z,  -0.20,  16.16,  15.85,  99.90,  -0.11,
10/08 09Z,  -0.20,  17.98,  17.85,  99.90,   0.07,  (max)
10/08 10Z,  -0.30,  17.77,  17.60,  99.90,   0.13,
10/08 11Z,  -0.30,  15.54,  15.14,  99.90,  -0.10,
10/08 12Z,  -0.20,  11.68,  11.18,  99.90,  -0.30,
10/08 13Z,  -0.20,   7.01,   6.54,  99.90,  -0.27,
10/08 14Z,  -0.30,   2.82,   2.09,  99.90,  -0.43,
10/08 15Z,  -0.40,   0.36,  -0.64,  99.90,  -0.60,
10/08 16Z,  -0.50,   0.23,  -0.66,  99.90,  -0.39,  (min)
10/08 17Z,  -0.50,   2.36,   1.77,  99.90,  -0.09,
10/08 18Z,  -0.50,   6.28,   5.66,  99.90,  -0.12,
10/08 19Z,  -0.50,  11.06,  10.41,  99.90,  -0.15,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/08 20Z,  -0.40,  15.48,  99.90,  14.92,  -0.15,
10/08 21Z,  -0.30,  18.45,  99.90,  17.99,  -0.16,
10/08 22Z,  -0.20,  19.33,  99.90,  18.97,  -0.16,  (max)
10/08 23Z,  -0.20,  17.90,  99.90,  17.54,  -0.16,
10/09 00Z,  -0.20,  14.43,  99.90,  14.06,  -0.17,
10/09 01Z,  -0.20,   9.63,  99.90,   9.26,  -0.17,
10/09 02Z,  -0.30,   4.71,  99.90,   4.24,  -0.17,
10/09 03Z,  -0.40,   1.16,  99.90,   0.58,  -0.17,
10/09 04Z,  -0.40,  -0.06,  99.90,  -0.63,  -0.18,  (min)
10/09 05Z,  -0.40,   1.22,  99.90,   0.64,  -0.18,
10/09 06Z,  -0.50,   4.59,  99.90,   3.91,  -0.18,
10/09 07Z,  -0.50,   9.25,  99.90,   8.56,  -0.19,
10/09 08Z,  -0.50,  13.95,  99.90,  13.26,  -0.19,
10/09 09Z,  -0.50,  17.48,  99.90,  16.79,  -0.19,
10/09 10Z,  -0.50,  19.02,  99.90,  18.33,  -0.19,  (max)
10/09 11Z,  -0.50,  18.23,  99.90,  17.54,  -0.19,
10/09 12Z,  -0.50,  15.26,  99.90,  14.57,  -0.19,
10/09 13Z,  -0.50,  10.71,  99.90,  10.02,  -0.19,
10/09 14Z,  -0.50,   5.66,  99.90,   4.98,  -0.19,
10/09 15Z,  -0.50,   1.61,  99.90,   0.92,  -0.19,
10/09 16Z,  -0.50,  -0.20,  99.90,  -0.88,  -0.19,  (min)
10/09 17Z,  -0.50,   0.64,  99.90,  -0.04,  -0.19,
10/09 18Z,  -0.60,   3.80,  99.90,   3.01,  -0.19,
10/09 19Z,  -0.60,   8.51,  99.90,   7.73,  -0.19,
10/09 20Z,  -0.50,  13.61,  99.90,  12.92,  -0.19,
10/09 21Z,  -0.50,  17.78,  99.90,  17.09,  -0.19,
10/09 22Z,  -0.50,  20.02,  99.90,  19.33,  -0.19,  (max)
10/09 23Z,  -0.50,  19.84,  99.90,  19.16,  -0.19,
10/10 00Z,  -0.50,  17.24,  99.90,  16.55,  -0.19,
10/10 01Z,  -0.60,  12.70,  99.90,  11.91,  -0.19,
10/10 02Z,  -0.60,   7.17,  99.90,   6.38,  -0.19,
10/10 03Z,  -0.60,   2.10,  99.90,   1.32,  -0.19,
10/10 04Z,  -0.60,  -0.99,  99.90,  -1.77,  -0.19,
10/10 05Z,  -0.60,  -1.30,  99.90,  -2.09,  -0.19,  (min)
10/10 06Z,  -0.40,   1.03,  99.90,   0.44,  -0.19,
10/10 07Z,  -0.40,   5.36,  99.90,   4.77,  -0.19,
10/10 08Z,  -0.40,  10.61,  99.90,  10.02,  -0.19,
10/10 09Z,  -0.40,  15.42,  99.90,  14.84,  -0.19,
10/10 10Z,  -0.40,  18.62,  99.90,  18.04,  -0.19,
10/10 11Z,  -0.40,  19.51,  99.90,  18.92,  -0.19,  (max)
10/10 12Z,  -0.50,  17.92,  99.90,  17.23,  -0.19,
10/10 13Z,  -0.60,  14.19,  99.90,  13.41,  -0.19,
10/10 14Z,  -0.70,   9.18,  99.90,   8.29,  -0.19,
10/10 15Z,  -0.80,   4.18,  99.90,   3.19,  -0.19,
10/10 16Z,  -0.80,   0.77,  99.90,  -0.22,  -0.19,
10/10 17Z,  -0.70,   0.03,  99.90,  -0.86,  -0.19,  (min)
10/10 18Z,  -0.60,   2.02,  99.90,   1.24,  -0.19,
10/10 19Z,  -0.50,   6.10,  99.90,   5.41,  -0.19,
10/10 20Z,  -0.40,  11.25,  99.90,  10.67,  -0.19,
10/10 21Z,  -0.40,  16.17,  99.90,  15.59,  -0.19,
10/10 22Z,  -0.40,  19.60,  99.90,  19.01,  -0.19,
10/10 23Z,  -0.50,  20.73,  99.90,  20.05,  -0.19,  (max)
10/11 00Z,  -0.50,  19.30,  99.90,  18.62,  -0.19,
10/11 01Z,  -0.60,  15.55,  99.90,  14.77,  -0.19,
10/11 02Z,  -0.60,  10.21,  99.90,   9.43,  -0.19,
10/11 03Z,  -0.70,   4.45,  99.90,   3.57,  -0.19,
10/11 04Z,  -0.60,  -0.18,  99.90,  -0.97,  -0.19,
10/11 05Z,  -0.40,  -2.30,  99.90,  -2.89,  -0.19,  (min)
10/11 06Z,  -0.20,  -1.45,  99.90,  -1.84,  -0.19,
10/11 07Z,  -0.10,   1.92,  99.90,   1.63,  -0.19,
10/11 08Z,  -0.10,   6.91,  99.90,   6.63,  -0.19,
10/11 09Z,  -0.10,  12.32,  99.90,  12.04,  -0.19,
10/11 10Z,  -0.20,  16.78,  99.90,  16.40,  -0.19,
10/11 11Z,  -0.30,  19.27,  99.90,  18.78,  -0.19,
10/11 12Z,  -0.30,  19.27,  99.90,  18.78,  -0.19,  (max)
10/11 13Z,  -0.20,  16.84,  99.90,  16.45,  -0.19,
10/11 14Z,  -0.20,  12.55,  99.90,  12.17,  -0.19,
10/11 15Z,  -0.30,   7.46,  99.90,   6.98,  -0.19,
10/11 16Z,  -0.30,   3.01,  99.90,   2.52,  -0.19,
10/11 17Z,  -0.30,   0.67,  99.90,   0.18,  -0.19,  (min)
10/11 18Z,  -0.20,   1.19,  99.90,   0.80,  -0.19,
10/11 19Z,   0.00,   4.23,  99.90,   4.05,  -0.19,
10/11 20Z,   0.00,   8.88,  99.90,   8.69,  -0.19,
10/11 21Z,   0.10,  13.97,  99.90,  13.89,  -0.19,
10/11 22Z,   0.10,  18.21,  99.90,  18.13,  -0.19,
10/11 23Z,   0.00,  20.52,  99.90,  20.34,  -0.19,  (max)
10/12 00Z,   0.00,  20.36,  99.90,  20.18,  -0.19,
10/12 01Z,  -0.10,  17.72,  99.90,  17.43,  -0.19,
10/12 02Z,  -0.20,  13.10,  99.90,  12.72,  -0.19,
10/12 03Z,  -0.30,   7.44,  99.90,   6.96,  -0.19,
10/12 04Z,  -0.40,   2.04,  99.90,   1.45,  -0.19,
10/12 05Z,  -0.40,  -1.63,  99.90,  -2.22,  -0.19,
10/12 06Z,  -0.20,  -2.48,  99.90,  -2.87,  -0.19,  (min)
10/12 07Z,   0.00,  -0.47,  99.90,  -0.66,  -0.19,
10/12 08Z,   0.00,   3.65,  99.90,   3.47,  -0.19,
10/12 09Z,   0.00,   8.87,  99.90,   8.68,  -0.19,
10/12 10Z,   0.00,  13.94,  99.90,  13.76,  -0.19,
10/12 11Z,  -0.10,  17.66,  99.90,  17.37,  -0.19,
10/12 12Z,  -0.20,  19.19,  99.90,  18.80,  -0.19,