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 : 10/07/2026 12:23:16 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/05 12Z,   1.70, -12.81, -12.21,  99.90,  -1.10,  (min)
10/05 13Z,   1.60, -12.16, -11.58,  99.90,  -1.02,
10/05 14Z,   1.60, -10.88, -10.41,  99.90,  -1.13,
10/05 15Z,   1.60,  -9.23,  -8.87,  99.90,  -1.24,
10/05 16Z,   1.50,  -7.59,  -7.23,  99.90,  -1.14,
10/05 17Z,   1.50,  -6.31,  -5.96,  99.90,  -1.15,
10/05 18Z,   1.60,  -5.61,  -5.28,  99.90,  -1.27,
10/05 19Z,   1.60,  -5.57,  -5.26,  99.90,  -1.29,  (max)
10/05 20Z,   1.60,  -6.18,  -5.92,  99.90,  -1.34,
10/05 21Z,   1.60,  -7.24,  -6.97,  99.90,  -1.33,
10/05 22Z,   1.50,  -8.37,  -8.12,  99.90,  -1.25,
10/05 23Z,   1.50,  -9.19,  -8.95,  99.90,  -1.26,
10/06 00Z,   1.60,  -9.45,  -9.24,  99.90,  -1.39,  (min)
10/06 01Z,   1.60,  -9.10,  -8.89,  99.90,  -1.39,
10/06 02Z,   1.50,  -8.16,  -7.97,  99.90,  -1.31,
10/06 03Z,   1.40,  -6.84,  -6.76,  99.90,  -1.32,
10/06 04Z,   1.40,  -5.48,  -5.41,  99.90,  -1.33,
10/06 05Z,   1.40,  -4.50,  -4.32,  99.90,  -1.22,
10/06 06Z,   1.50,  -4.17,  -4.02,  99.90,  -1.35,  (max)
10/06 07Z,   1.50,  -4.64,  -4.49,  99.90,  -1.35,
10/06 08Z,   1.40,  -5.92,  -5.80,  99.90,  -1.28,
10/06 09Z,   1.40,  -7.81,  -7.68,  99.90,  -1.27,
10/06 10Z,   1.40,  -9.93,  -9.81,  99.90,  -1.28,
10/06 11Z,   1.30, -11.76, -11.58,  99.90,  -1.12,
10/06 12Z,   1.50, -12.90, -12.70,  99.90,  -1.30,
10/06 13Z,   1.40, -13.15, -13.07,  99.90,  -1.32,  (min)
10/06 14Z,   1.30, -12.45, -12.36,  99.90,  -1.21,
10/06 15Z,   1.30, -10.94, -10.81,  99.90,  -1.17,
10/06 16Z,   1.20,  -8.96,  -8.94,  99.90,  -1.18,
10/06 17Z,   1.20,  -6.99,  -7.07,  99.90,  -1.28,
10/06 18Z,   1.30,  -5.47,  -5.46,  99.90,  -1.29,
10/06 19Z,   1.30,  -4.68,  -4.80,  99.90,  -1.42,  (max)
10/06 20Z,   1.30,  -4.77,  -5.00,  99.90,  -1.53,
10/06 21Z,   1.20,  -5.72,  -5.90,  99.90,  -1.38,
10/06 22Z,   1.20,  -7.25,  -7.40,  99.90,  -1.35,
10/06 23Z,   1.10,  -8.89,  -9.12,  99.90,  -1.33,
10/07 00Z,   1.20, -10.15, -10.35,  99.90,  -1.40,
10/07 01Z,   1.10, -10.69, -10.95,  99.90,  -1.36,  (min)
10/07 02Z,   1.00, -10.38, -10.64,  99.90,  -1.26,
10/07 03Z,   1.00,  -9.25,  -9.46,  99.90,  -1.21,
10/07 04Z,   0.90,  -7.55,  -7.80,  99.90,  -1.15,
10/07 05Z,   0.90,  -5.76,  -6.06,  99.90,  -1.20,
10/07 06Z,   0.90,  -4.39,  -4.65,  99.90,  -1.16,
10/07 07Z,   0.90,  -3.80,  -4.06,  99.90,  -1.16,  (max)
10/07 08Z,   1.00,  -4.18,  -4.55,  99.90,  -1.37,
10/07 09Z,   1.00,  -5.53,  -5.93,  99.90,  -1.40,
10/07 10Z,   1.00,  -7.64,  -7.92,  99.90,  -1.28,
10/07 11Z,   0.90, -10.00, -10.37,  99.90,  -1.27,
10/07 12Z,   0.80, -12.02, -12.46,  99.90,  -1.24,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/07 13Z,   0.80, -13.23,  99.90, -13.66,  -1.24,
10/07 14Z,   0.70, -13.35,  99.90, -13.89,  -1.23,  (min)
10/07 15Z,   0.60, -12.37,  99.90, -13.00,  -1.23,
10/07 16Z,   0.50, -10.46,  99.90, -11.19,  -1.23,
10/07 17Z,   0.50,  -8.11,  99.90,  -8.84,  -1.23,
10/07 18Z,   0.50,  -5.89,  99.90,  -6.62,  -1.23,
10/07 19Z,   0.50,  -4.32,  99.90,  -5.05,  -1.22,
10/07 20Z,   0.40,  -3.72,  99.90,  -4.54,  -1.22,  (max)
10/07 21Z,   0.70,  -4.20,  99.90,  -4.72,  -1.22,
10/07 22Z,   0.70,  -5.68,  99.90,  -6.20,  -1.22,
10/07 23Z,   0.70,  -7.77,  99.90,  -8.29,  -1.22,
10/08 00Z,   0.70,  -9.88,  99.90, -10.40,  -1.21,
10/08 01Z,   0.70, -11.43,  99.90, -11.94,  -1.21,
10/08 02Z,   0.80, -12.01,  99.90, -12.43,  -1.21,  (min)
10/08 03Z,   0.60, -11.50,  99.90, -12.12,  -1.21,
10/08 04Z,   0.80,  -9.98,  99.90, -10.40,  -1.21,
10/08 05Z,   0.60,  -7.84,  99.90,  -8.46,  -1.21,
10/08 06Z,   0.60,  -5.67,  99.90,  -6.29,  -1.21,
10/08 07Z,   0.60,  -4.07,  99.90,  -4.68,  -1.21,
10/08 08Z,   0.60,  -3.42,  99.90,  -4.04,  -1.21,  (max)
10/08 09Z,   0.60,  -3.92,  99.90,  -4.53,  -1.21,
10/08 10Z,   0.50,  -5.50,  99.90,  -6.22,  -1.21,
10/08 11Z,   0.60,  -7.86,  99.90,  -8.48,  -1.21,
10/08 12Z,   0.60, -10.39,  99.90, -11.01,  -1.21,
10/08 13Z,   0.70, -12.42,  99.90, -12.94,  -1.21,
10/08 14Z,   0.60, -13.44,  99.90, -14.06,  -1.21,  (min)
10/08 15Z,   0.70, -13.21,  99.90, -13.72,  -1.21,
10/08 16Z,   0.70, -11.76,  99.90, -12.27,  -1.21,
10/08 17Z,   0.70,  -9.42,  99.90,  -9.93,  -1.21,
10/08 18Z,   0.40,  -6.78,  99.90,  -7.60,  -1.21,
10/08 19Z,   0.80,  -4.53,  99.90,  -4.94,  -1.21,
10/08 20Z,   0.70,  -3.18,  99.90,  -3.69,  -1.21,  (max)
10/08 21Z,   0.30,  -3.01,  99.90,  -3.93,  -1.21,
10/08 22Z,   0.50,  -4.08,  99.90,  -4.80,  -1.21,
10/08 23Z,   0.70,  -6.18,  99.90,  -6.69,  -1.21,
10/09 00Z,   0.60,  -8.78,  99.90,  -9.40,  -1.21,
10/09 01Z,   0.40, -11.19,  99.90, -12.00,  -1.21,
10/09 02Z,   0.40, -12.77,  99.90, -13.58,  -1.21,
10/09 03Z,   0.50, -13.14,  99.90, -13.85,  -1.21,  (min)
10/09 04Z,   0.50, -12.22,  99.90, -12.93,  -1.21,
10/09 05Z,   0.40, -10.23,  99.90, -11.04,  -1.21,
10/09 06Z,   0.50,  -7.69,  99.90,  -8.40,  -1.21,
10/09 07Z,   0.50,  -5.30,  99.90,  -6.02,  -1.21,
10/09 08Z,   0.50,  -3.69,  99.90,  -4.40,  -1.21,
10/09 09Z,   0.40,  -3.20,  99.90,  -4.02,  -1.21,  (max)
10/09 10Z,   0.50,  -3.97,  99.90,  -4.69,  -1.21,
10/09 11Z,   0.50,  -5.86,  99.90,  -6.57,  -1.21,
10/09 12Z,   0.50,  -8.41,  99.90,  -9.12,  -1.21,
10/09 13Z,   0.40, -10.94,  99.90, -11.75,  -1.21,
10/09 14Z,   0.30, -12.74,  99.90, -13.66,  -1.21,
10/09 15Z,   0.30, -13.34,  99.90, -14.25,  -1.21,  (min)
10/09 16Z,   0.30, -12.58,  99.90, -13.49,  -1.21,
10/09 17Z,   0.30, -10.62,  99.90, -11.53,  -1.21,
10/09 18Z,   0.30,  -7.93,  99.90,  -8.85,  -1.21,
10/09 19Z,   0.30,  -5.23,  99.90,  -6.15,  -1.21,
10/09 20Z,   0.30,  -3.21,  99.90,  -4.12,  -1.21,
10/09 21Z,   0.30,  -2.33,  99.90,  -3.25,  -1.21,  (max)
10/09 22Z,   0.30,  -2.79,  99.90,  -3.71,  -1.21,
10/09 23Z,   0.30,  -4.53,  99.90,  -5.44,  -1.21,
10/10 00Z,   0.30,  -7.18,  99.90,  -8.10,  -1.21,
10/10 01Z,   0.20, -10.12,  99.90, -11.13,  -1.21,
10/10 02Z,   0.20, -12.56,  99.90, -13.57,  -1.21,
10/10 03Z,   0.20, -13.89,  99.90, -14.90,  -1.21,  (min)
10/10 04Z,   0.20, -13.82,  99.90, -14.83,  -1.21,
10/10 05Z,   0.20, -12.39,  99.90, -13.40,  -1.21,
10/10 06Z,   0.30,  -9.96,  99.90, -10.87,  -1.21,
10/10 07Z,   0.30,  -7.18,  99.90,  -8.10,  -1.21,
10/10 08Z,   0.40,  -4.81,  99.90,  -5.62,  -1.21,
10/10 09Z,   0.40,  -3.40,  99.90,  -4.22,  -1.21,
10/10 10Z,   0.30,  -3.26,  99.90,  -4.17,  -1.21,  (max)
10/10 11Z,   0.30,  -4.38,  99.90,  -5.30,  -1.21,
10/10 12Z,   0.20,  -6.52,  99.90,  -7.53,  -1.21,
10/10 13Z,   0.20,  -9.11,  99.90, -10.13,  -1.21,
10/10 14Z,   0.20, -11.42,  99.90, -12.44,  -1.21,
10/10 15Z,   0.10, -12.77,  99.90, -13.89,  -1.21,  (min)
10/10 16Z,   0.20, -12.79,  99.90, -13.80,  -1.21,
10/10 17Z,   0.20, -11.45,  99.90, -12.47,  -1.21,
10/10 18Z,   0.20,  -9.08,  99.90, -10.09,  -1.21,
10/10 19Z,   0.30,  -6.26,  99.90,  -7.18,  -1.21,
10/10 20Z,   0.30,  -3.76,  99.90,  -4.67,  -1.21,
10/10 21Z,   0.40,  -2.22,  99.90,  -3.04,  -1.21,
10/10 22Z,   0.30,  -2.01,  99.90,  -2.93,  -1.21,  (max)
10/10 23Z,   0.40,  -3.17,  99.90,  -3.99,  -1.21,
10/11 00Z,   0.40,  -5.51,  99.90,  -6.32,  -1.21,