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
#Seward, AK : 09/08/2026 09:22:51 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/06 18Z,   0.70,  -6.70,  -7.54,  99.90,  -1.54,
09/06 19Z,   0.70,  -6.45,  -7.20,  99.90,  -1.45,  (max)
09/06 20Z,   0.70,  -6.74,  -7.48,  99.90,  -1.44,
09/06 21Z,   0.70,  -7.46,  -8.20,  99.90,  -1.44,
09/06 22Z,   0.80,  -8.29,  -8.90,  99.90,  -1.41,
09/06 23Z,   0.80,  -8.89,  -9.58,  99.90,  -1.49,
09/07 00Z,   0.80,  -9.00,  -9.70,  99.90,  -1.50,  (min)
09/07 01Z,   0.80,  -8.55,  -9.26,  99.90,  -1.51,
09/07 02Z,   0.80,  -7.60,  -8.30,  99.90,  -1.50,
09/07 03Z,   0.80,  -6.30,  -6.99,  99.90,  -1.49,
09/07 04Z,   0.80,  -4.96,  -5.61,  99.90,  -1.45,
09/07 05Z,   0.80,  -3.96,  -4.53,  99.90,  -1.37,
09/07 06Z,   0.90,  -3.61,  -4.23,  99.90,  -1.52,  (max)
09/07 07Z,   0.90,  -4.07,  -4.86,  99.90,  -1.69,
09/07 08Z,   0.90,  -5.32,  -6.03,  99.90,  -1.61,
09/07 09Z,   0.90,  -7.23,  -7.86,  99.90,  -1.53,
09/07 10Z,   0.90,  -9.49, -10.14,  99.90,  -1.55,
09/07 11Z,   0.90, -11.59, -12.15,  99.90,  -1.46,
09/07 12Z,   1.00, -13.10, -13.63,  99.90,  -1.53,
09/07 13Z,   1.00, -13.74, -14.28,  99.90,  -1.54,  (min)
09/07 14Z,   1.00, -13.45, -14.00,  99.90,  -1.55,
09/07 15Z,   1.00, -12.30, -12.82,  99.90,  -1.52,
09/07 16Z,   1.00, -10.53, -11.07,  99.90,  -1.54,
09/07 17Z,   0.90,  -8.60,  -9.20,  99.90,  -1.50,
09/07 18Z,   1.00,  -6.94,  -7.57,  99.90,  -1.63,
09/07 19Z,   1.10,  -5.88,  -6.47,  99.90,  -1.69,
09/07 20Z,   1.10,  -5.56,  -6.16,  99.90,  -1.70,  (max)
09/07 21Z,   1.10,  -6.03,  -6.72,  99.90,  -1.79,
09/07 22Z,   1.00,  -7.10,  -7.66,  99.90,  -1.56,
09/07 23Z,   1.00,  -8.41,  -8.98,  99.90,  -1.57,
09/08 00Z,   1.10,  -9.48,  -9.98,  99.90,  -1.60,
09/08 01Z,   1.10,  -9.94, -10.29,  99.90,  -1.45,  (min)
09/08 02Z,   1.00,  -9.64, -10.27,  99.90,  -1.63,
09/08 03Z,   1.00,  -8.57,  -9.23,  99.90,  -1.66,
09/08 04Z,   1.00,  -6.95,  -7.48,  99.90,  -1.53,
09/08 05Z,   1.00,  -5.18,  -5.79,  99.90,  -1.61,
09/08 06Z,   1.00,  -3.76,  -4.22,  99.90,  -1.46,
09/08 07Z,   1.00,  -3.11,  -3.96,  99.90,  -1.85,  (max)
09/08 08Z,   1.10,  -3.43,  -4.10,  99.90,  -1.77,
09/08 09Z,   1.10,  -4.76,  -5.30,  99.90,  -1.64,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/08 10Z,   1.10,  -6.94,  99.90,  -7.47,  -1.63,
09/08 11Z,   1.10,  -9.56,  99.90, -10.08,  -1.62,
09/08 12Z,   1.20, -12.01,  99.90, -12.42,  -1.61,
09/08 13Z,   1.20, -13.75,  99.90, -14.15,  -1.61,
09/08 14Z,   1.10, -14.43,  99.90, -14.93,  -1.60,  (min)
09/08 15Z,   1.10, -13.94,  99.90, -14.43,  -1.59,
09/08 16Z,   1.00, -12.40,  99.90, -12.98,  -1.58,
09/08 17Z,   1.00, -10.18,  99.90, -10.75,  -1.58,
09/08 18Z,   1.00,  -7.83,  99.90,  -8.40,  -1.57,
09/08 19Z,   1.00,  -5.92,  99.90,  -6.48,  -1.56,
09/08 20Z,   1.10,  -4.82,  99.90,  -5.27,  -1.56,
09/08 21Z,   1.10,  -4.71,  99.90,  -5.16,  -1.55,  (max)
09/08 22Z,   1.10,  -5.60,  99.90,  -6.04,  -1.55,
09/08 23Z,   1.20,  -7.21,  99.90,  -7.56,  -1.55,
09/09 00Z,   1.20,  -9.05,  99.90,  -9.40,  -1.55,
09/09 01Z,   1.10, -10.51,  99.90, -10.95,  -1.55,
09/09 02Z,   1.00, -11.14,  99.90, -11.69,  -1.55,  (min)
09/09 03Z,   1.10, -10.75,  99.90, -11.20,  -1.55,
09/09 04Z,   1.00,  -9.37,  99.90,  -9.92,  -1.55,
09/09 05Z,   1.00,  -7.31,  99.90,  -7.86,  -1.55,
09/09 06Z,   0.90,  -5.10,  99.90,  -5.75,  -1.55,
09/09 07Z,   0.90,  -3.38,  99.90,  -4.02,  -1.55,
09/09 08Z,   0.90,  -2.59,  99.90,  -3.24,  -1.55,  (max)
09/09 09Z,   0.90,  -2.99,  99.90,  -3.64,  -1.55,
09/09 10Z,   0.80,  -4.57,  99.90,  -5.32,  -1.55,
09/09 11Z,   0.70,  -7.11,  99.90,  -7.96,  -1.55,
09/09 12Z,   0.80, -10.05,  99.90, -10.80,  -1.55,
09/09 13Z,   0.70, -12.70,  99.90, -13.54,  -1.55,
09/09 14Z,   0.80, -14.42,  99.90, -15.16,  -1.55,
09/09 15Z,   0.70, -14.85,  99.90, -15.70,  -1.55,  (min)
09/09 16Z,   0.70, -13.93,  99.90, -14.77,  -1.55,
09/09 17Z,   0.60, -11.87,  99.90, -12.82,  -1.55,
09/09 18Z,   0.60,  -9.19,  99.90, -10.14,  -1.55,
09/09 19Z,   0.70,  -6.58,  99.90,  -7.43,  -1.55,
09/09 20Z,   0.70,  -4.65,  99.90,  -5.50,  -1.55,
09/09 21Z,   0.70,  -3.79,  99.90,  -4.64,  -1.55,  (max)
09/09 22Z,   0.70,  -4.14,  99.90,  -4.99,  -1.55,
09/09 23Z,   0.70,  -5.62,  99.90,  -6.46,  -1.55,
09/10 00Z,   0.60,  -7.82,  99.90,  -8.77,  -1.55,
09/10 01Z,   0.60, -10.09,  99.90, -11.04,  -1.55,
09/10 02Z,   0.60, -11.76,  99.90, -12.70,  -1.55,
09/10 03Z,   0.60, -12.33,  99.90, -13.27,  -1.55,  (min)
09/10 04Z,   0.70, -11.64,  99.90, -12.48,  -1.55,
09/10 05Z,   0.60,  -9.82,  99.90, -10.77,  -1.55,
09/10 06Z,   0.50,  -7.31,  99.90,  -8.36,  -1.55,
09/10 07Z,   0.60,  -4.79,  99.90,  -5.74,  -1.55,
09/10 08Z,   0.70,  -2.95,  99.90,  -3.80,  -1.55,
09/10 09Z,   0.70,  -2.26,  99.90,  -3.11,  -1.55,  (max)
09/10 10Z,   0.60,  -2.92,  99.90,  -3.87,  -1.55,
09/10 11Z,   0.60,  -4.86,  99.90,  -5.81,  -1.55,
09/10 12Z,   0.60,  -7.72,  99.90,  -8.66,  -1.55,
09/10 13Z,   0.50, -10.83,  99.90, -11.88,  -1.55,
09/10 14Z,   0.40, -13.42,  99.90, -14.57,  -1.55,
09/10 15Z,   0.50, -14.83,  99.90, -15.88,  -1.55,  (min)
09/10 16Z,   0.50, -14.77,  99.90, -15.82,  -1.55,
09/10 17Z,   0.50, -13.27,  99.90, -14.32,  -1.55,
09/10 18Z,   0.50, -10.70,  99.90, -11.75,  -1.55,
09/10 19Z,   0.50,  -7.72,  99.90,  -8.77,  -1.55,
09/10 20Z,   0.50,  -5.09,  99.90,  -6.14,  -1.55,
09/10 21Z,   0.50,  -3.44,  99.90,  -4.48,  -1.55,
09/10 22Z,   0.50,  -3.07,  99.90,  -4.12,  -1.55,  (max)
09/10 23Z,   0.30,  -4.05,  99.90,  -5.29,  -1.55,
09/11 00Z,   0.30,  -6.15,  99.90,  -7.40,  -1.55,
09/11 01Z,   0.40,  -8.84,  99.90,  -9.99,  -1.55,
09/11 02Z,   0.40, -11.35,  99.90, -12.50,  -1.55,
09/11 03Z,   0.30, -12.96,  99.90, -14.21,  -1.55,
09/11 04Z,   0.30, -13.23,  99.90, -14.48,  -1.55,  (min)
09/11 05Z,   0.50, -12.10,  99.90, -13.15,  -1.55,
09/11 06Z,   0.50,  -9.83,  99.90, -10.87,  -1.55,
09/11 07Z,   0.50,  -7.00,  99.90,  -8.05,  -1.55,
09/11 08Z,   0.50,  -4.38,  99.90,  -5.43,  -1.55,
09/11 09Z,   0.50,  -2.67,  99.90,  -3.72,  -1.55,
09/11 10Z,   0.40,  -2.28,  99.90,  -3.43,  -1.55,  (max)
09/11 11Z,   0.30,  -3.31,  99.90,  -4.56,  -1.55,
09/11 12Z,   0.30,  -5.58,  99.90,  -6.83,  -1.55,
09/11 13Z,   0.20,  -8.63,  99.90,  -9.97,  -1.55,
09/11 14Z,   0.10, -11.67,  99.90, -13.12,  -1.55,
09/11 15Z,   0.10, -13.91,  99.90, -15.36,  -1.55,
09/11 16Z,   0.10, -14.77,  99.90, -16.22,  -1.55,  (min)
09/11 17Z,   0.20, -14.07,  99.90, -15.42,  -1.55,
09/11 18Z,   0.20, -12.00,  99.90, -13.34,  -1.55,
09/11 19Z,   0.30,  -9.07,  99.90, -10.32,  -1.55,
09/11 20Z,   0.30,  -6.04,  99.90,  -7.29,  -1.55,
09/11 21Z,   0.30,  -3.70,  99.90,  -4.94,  -1.55,
09/11 22Z,   0.40,  -2.56,  99.90,  -3.71,  -1.55,  (max)
09/11 23Z,   0.30,  -2.86,  99.90,  -4.11,  -1.55,
09/12 00Z,   0.30,  -4.50,  99.90,  -5.74,  -1.55,
09/12 01Z,  99.90,  -7.13,  99.90,  99.90,  -1.55,
09/12 02Z,  99.90, -10.09,  99.90,  99.90,  -1.55,
09/12 03Z,  99.90, -12.56,  99.90,  99.90,  -1.55,
09/12 04Z,  99.90, -13.86,  99.90,  99.90,  -1.55,
09/12 05Z,  99.90, -13.67,  99.90,  99.90,  -1.55,
09/12 06Z,  99.90, -12.06,  99.90,  99.90,  -1.55,