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 : 05/25/2025 05:24:00 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/23 12Z,   0.60, -12.55, -12.74,  99.90,  -0.79,
05/23 13Z,   0.60, -12.96, -13.17,  99.90,  -0.81,  (min)
05/23 14Z,   0.50, -12.40, -12.61,  99.90,  -0.71,
05/23 15Z,   0.50, -11.04, -11.22,  99.90,  -0.68,
05/23 16Z,   0.50,  -9.24,  -9.54,  99.90,  -0.80,
05/23 17Z,   0.60,  -7.45,  -7.73,  99.90,  -0.88,
05/23 18Z,   0.60,  -6.18,  -6.43,  99.90,  -0.85,
05/23 19Z,   0.60,  -5.74,  -5.95,  99.90,  -0.81,  (max)
05/23 20Z,   0.70,  -6.19,  -6.45,  99.90,  -0.96,
05/23 21Z,   0.70,  -7.40,  -7.64,  99.90,  -0.94,
05/23 22Z,   0.70,  -9.08,  -9.27,  99.90,  -0.89,
05/23 23Z,   0.60, -10.78, -11.09,  99.90,  -0.91,
05/24 00Z,   0.70, -11.95, -12.26,  99.90,  -1.01,
05/24 01Z,   0.60, -12.22, -12.46,  99.90,  -0.84,  (min)
05/24 02Z,   0.60, -11.46, -11.68,  99.90,  -0.82,
05/24 03Z,   0.70,  -9.82, -10.11,  99.90,  -0.99,
05/24 04Z,   0.70,  -7.63,  -7.86,  99.90,  -0.93,
05/24 05Z,   0.70,  -5.39,  -5.57,  99.90,  -0.88,
05/24 06Z,   0.70,  -3.67,  -3.91,  99.90,  -0.94,
05/24 07Z,   0.70,  -2.94,  -3.19,  99.90,  -0.95,  (max)
05/24 08Z,   0.80,  -3.39,  -3.68,  99.90,  -1.09,
05/24 09Z,   0.70,  -4.93,  -5.23,  99.90,  -1.00,
05/24 10Z,   0.70,  -7.29,  -7.52,  99.90,  -0.93,
05/24 11Z,   0.70, -10.01, -10.16,  99.90,  -0.85,
05/24 12Z,   0.70, -12.44, -12.54,  99.90,  -0.80,
05/24 13Z,   0.70, -14.02, -14.16,  99.90,  -0.84,
05/24 14Z,   0.70, -14.42, -14.37,  99.90,  -0.65,  (min)
05/24 15Z,   0.70, -13.63, -13.66,  99.90,  -0.73,
05/24 16Z,   0.60, -11.89, -12.00,  99.90,  -0.71,
05/24 17Z,   0.70,  -9.63,  -9.70,  99.90,  -0.77,
05/24 18Z,   0.80,  -7.44,  -7.43,  99.90,  -0.79,
05/24 19Z,   0.90,  -5.88,  -6.05,  99.90,  -1.07,
05/24 20Z,   0.90,  -5.29,  -5.52,  99.90,  -1.13,  (max)
05/24 21Z,   0.90,  -5.73,  -5.92,  99.90,  -1.09,
05/24 22Z,   0.90,  -7.02,  -7.22,  99.90,  -1.10,
05/24 23Z,   0.90,  -8.83,  -8.99,  99.90,  -1.06,
05/25 00Z,   1.00, -10.62, -10.73,  99.90,  -1.11,
05/25 01Z,   1.00, -11.78, -11.94,  99.90,  -1.16,
05/25 02Z,   1.00, -11.92, -12.06,  99.90,  -1.14,  (min)
05/25 03Z,   0.90, -10.92, -10.96,  99.90,  -0.94,
05/25 04Z,   0.90,  -8.99,  -9.01,  99.90,  -0.92,
05/25 05Z,   0.90,  -6.54,  -6.54,  99.90,  -0.90,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/25 06Z,   1.00,  -4.17,  99.90,  -4.08,  -0.91,
05/25 07Z,   1.10,  -2.52,  99.90,  -2.33,  -0.92,
05/25 08Z,   1.20,  -2.05,  99.90,  -1.78,  -0.93,  (max)
05/25 09Z,   1.20,  -2.91,  99.90,  -2.65,  -0.94,
05/25 10Z,   1.20,  -4.97,  99.90,  -4.72,  -0.95,
05/25 11Z,   1.20,  -7.88,  99.90,  -7.63,  -0.96,
05/25 12Z,   1.20, -11.04,  99.90, -10.81,  -0.97,
05/25 13Z,   1.10, -13.76,  99.90, -13.64,  -0.98,
05/25 14Z,   1.10, -15.39,  99.90, -15.28,  -0.99,
05/25 15Z,   1.00, -15.63,  99.90, -15.63,  -1.00,  (min)
05/25 16Z,   1.00, -14.50,  99.90, -14.51,  -1.01,
05/25 17Z,   1.00, -12.33,  99.90, -12.36,  -1.02,
05/25 18Z,   0.90,  -9.67,  99.90,  -9.79,  -1.02,
05/25 19Z,   0.90,  -7.18,  99.90,  -7.30,  -1.02,
05/25 20Z,   1.00,  -5.47,  99.90,  -5.49,  -1.02,
05/25 21Z,   1.00,  -4.86,  99.90,  -4.88,  -1.02,  (max)
05/25 22Z,   1.10,  -5.38,  99.90,  -5.30,  -1.02,
05/25 23Z,   1.10,  -6.81,  99.90,  -6.73,  -1.02,
05/26 00Z,   1.20,  -8.75,  99.90,  -8.57,  -1.02,
05/26 01Z,   1.10, -10.58,  99.90, -10.50,  -1.02,
05/26 02Z,   1.10, -11.66,  99.90, -11.58,  -1.02,  (min)
05/26 03Z,   1.10, -11.59,  99.90, -11.51,  -1.02,
05/26 04Z,   1.10, -10.32,  99.90, -10.24,  -1.02,
05/26 05Z,   1.10,  -8.11,  99.90,  -8.03,  -1.02,
05/26 06Z,   1.10,  -5.47,  99.90,  -5.39,  -1.02,
05/26 07Z,   1.00,  -3.08,  99.90,  -3.10,  -1.02,
05/26 08Z,   1.00,  -1.61,  99.90,  -1.63,  -1.02,
05/26 09Z,   1.00,  -1.48,  99.90,  -1.50,  -1.02,  (max)
05/26 10Z,   1.00,  -2.79,  99.90,  -2.81,  -1.02,
05/26 11Z,   1.10,  -5.33,  99.90,  -5.25,  -1.02,
05/26 12Z,   1.00,  -8.66,  99.90,  -8.68,  -1.02,
05/26 13Z,   1.10, -12.12,  99.90, -12.04,  -1.02,
05/26 14Z,   1.10, -14.92,  99.90, -14.84,  -1.02,
05/26 15Z,   1.10, -16.44,  99.90, -16.36,  -1.02,  (min)
05/26 16Z,   1.10, -16.40,  99.90, -16.32,  -1.02,
05/26 17Z,   1.10, -14.90,  99.90, -14.82,  -1.02,
05/26 18Z,   1.20, -12.36,  99.90, -12.18,  -1.02,
05/26 19Z,   1.20,  -9.41,  99.90,  -9.23,  -1.02,
05/26 20Z,   1.20,  -6.79,  99.90,  -6.61,  -1.02,
05/26 21Z,   1.20,  -5.08,  99.90,  -4.90,  -1.02,
05/26 22Z,   1.20,  -4.58,  99.90,  -4.40,  -1.02,  (max)
05/26 23Z,   1.20,  -5.24,  99.90,  -5.06,  -1.02,
05/27 00Z,   1.20,  -6.82,  99.90,  -6.64,  -1.02,
05/27 01Z,   1.20,  -8.84,  99.90,  -8.66,  -1.02,
05/27 02Z,   1.20, -10.63,  99.90, -10.45,  -1.02,
05/27 03Z,   1.20, -11.55,  99.90, -11.37,  -1.02,  (min)
05/27 04Z,   1.30, -11.23,  99.90, -10.95,  -1.02,
05/27 05Z,   1.40,  -9.68,  99.90,  -9.31,  -1.02,
05/27 06Z,   1.40,  -7.27,  99.90,  -6.89,  -1.02,
05/27 07Z,   1.40,  -4.56,  99.90,  -4.18,  -1.02,
05/27 08Z,   1.50,  -2.28,  99.90,  -1.80,  -1.02,
05/27 09Z,   1.50,  -1.08,  99.90,  -0.60,  -1.02,  (max)
05/27 10Z,   1.60,  -1.33,  99.90,  -0.75,  -1.02,
05/27 11Z,   1.60,  -3.03,  99.90,  -2.45,  -1.02,
05/27 12Z,   1.50,  -5.93,  99.90,  -5.45,  -1.02,
05/27 13Z,   1.60,  -9.52,  99.90,  -8.94,  -1.02,
05/27 14Z,   1.60, -13.06,  99.90, -12.49,  -1.02,
05/27 15Z,   1.50, -15.77,  99.90, -15.29,  -1.02,
05/27 16Z,   1.40, -17.02,  99.90, -16.64,  -1.02,  (min)
05/27 17Z,   1.30, -16.64,  99.90, -16.36,  -1.02,
05/27 18Z,   1.30, -14.81,  99.90, -14.53,  -1.02,
05/27 19Z,   1.20, -12.02,  99.90, -11.84,  -1.02,
05/27 20Z,   1.20,  -8.97,  99.90,  -8.79,  -1.02,
05/27 21Z,   1.20,  -6.39,  99.90,  -6.21,  -1.02,
05/27 22Z,   1.30,  -4.83,  99.90,  -4.55,  -1.02,
05/27 23Z,   1.30,  -4.50,  99.90,  -4.22,  -1.02,  (max)
05/28 00Z,   1.30,  -5.33,  99.90,  -5.05,  -1.02,
05/28 01Z,   1.30,  -7.02,  99.90,  -6.74,  -1.02,
05/28 02Z,   1.30,  -9.04,  99.90,  -8.76,  -1.02,
05/28 03Z,   1.30, -10.71,  99.90, -10.43,  -1.02,
05/28 04Z,   1.20, -11.40,  99.90, -11.22,  -1.02,  (min)
05/28 05Z,   1.10, -10.82,  99.90, -10.74,  -1.02,
05/28 06Z,   1.10,  -9.07,  99.90,  -8.99,  -1.02,
05/28 07Z,   1.00,  -6.56,  99.90,  -6.58,  -1.02,
05/28 08Z,   1.00,  -3.93,  99.90,  -3.95,  -1.02,
05/28 09Z,   1.00,  -1.87,  99.90,  -1.89,  -1.02,
05/28 10Z,   1.00,  -1.00,  99.90,  -1.02,  -1.02,  (max)
05/28 11Z,   1.00,  -1.60,  99.90,  -1.62,  -1.02,
05/28 12Z,   1.00,  -3.60,  99.90,  -3.62,  -1.02,
05/28 13Z,   1.10,  -6.69,  99.90,  -6.61,  -1.02,
05/28 14Z,   1.10, -10.33,  99.90, -10.25,  -1.02,
05/28 15Z,   1.20, -13.75,  99.90, -13.58,  -1.02,
05/28 16Z,   1.30, -16.19,  99.90, -15.91,  -1.02,
05/28 17Z,   1.40, -17.10,  99.90, -16.72,  -1.02,  (min)
05/28 18Z,   1.40, -16.39,  99.90, -16.01,  -1.02,
05/28 19Z,   1.40, -14.33,  99.90, -13.95,  -1.02,
05/28 20Z,   1.50, -11.45,  99.90, -10.98,  -1.02,
05/28 21Z,   1.50,  -8.48,  99.90,  -8.00,  -1.02,
05/28 22Z,   1.50,  -6.09,  99.90,  -5.61,  -1.02,
05/28 23Z,   1.50,  -4.77,  99.90,  -4.29,  -1.02,
05/29 00Z,   1.40,  -4.64,  99.90,  -4.27,  -1.02,