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
#Adak Island, AK : 08/19/2026 23:23:58 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/18 06Z,  -0.40,  -0.54,  -0.41,  99.90,   0.53,
08/18 07Z,  -0.40,  -0.47,  -0.39,  99.90,   0.48,  (max)
08/18 08Z,  -0.40,  -0.62,  -0.61,  99.90,   0.41,
08/18 09Z,  -0.40,  -0.99,  -1.04,  99.90,   0.35,
08/18 10Z,  -0.40,  -1.52,  -1.52,  99.90,   0.40,
08/18 11Z,  -0.40,  -2.13,  -2.18,  99.90,   0.35,
08/18 12Z,  -0.40,  -2.70,  -2.81,  99.90,   0.29,
08/18 13Z,  -0.40,  -3.13,  -3.23,  99.90,   0.30,
08/18 14Z,  -0.40,  -3.35,  -3.40,  99.90,   0.35,
08/18 15Z,  -0.40,  -3.31,  -3.46,  99.90,   0.25,  (min)
08/18 16Z,  -0.40,  -3.05,  -3.19,  99.90,   0.26,
08/18 17Z,  -0.40,  -2.63,  -2.71,  99.90,   0.32,
08/18 18Z,  -0.50,  -2.15,  -2.24,  99.90,   0.41,
08/18 19Z,  -0.50,  -1.70,  -1.83,  99.90,   0.37,
08/18 20Z,  -0.50,  -1.37,  -1.57,  99.90,   0.30,
08/18 21Z,  -0.50,  -1.20,  -1.40,  99.90,   0.30,  (max)
08/18 22Z,  -0.50,  -1.19,  -1.42,  99.90,   0.27,
08/18 23Z,  -0.50,  -1.28,  -1.54,  99.90,   0.24,
08/19 00Z,  -0.50,  -1.40,  -1.60,  99.90,   0.30,
08/19 01Z,  -0.50,  -1.47,  -1.72,  99.90,   0.25,  (min)
08/19 02Z,  -0.50,  -1.43,  -1.68,  99.90,   0.25,
08/19 03Z,  -0.50,  -1.27,  -1.46,  99.90,   0.31,
08/19 04Z,  -0.60,  -1.01,  -1.15,  99.90,   0.46,
08/19 05Z,  -0.50,  -0.72,  -0.86,  99.90,   0.36,
08/19 06Z,  -0.50,  -0.46,  -0.66,  99.90,   0.30,
08/19 07Z,  -0.50,  -0.34,  -0.49,  99.90,   0.35,  (max)
08/19 08Z,  -0.60,  -0.42,  -0.65,  99.90,   0.37,
08/19 09Z,  -0.60,  -0.72,  -0.99,  99.90,   0.33,
08/19 10Z,  -0.60,  -1.22,  -1.41,  99.90,   0.41,
08/19 11Z,  -0.60,  -1.86,  -2.14,  99.90,   0.32,
08/19 12Z,  -0.60,  -2.54,  -2.83,  99.90,   0.31,
08/19 13Z,  -0.60,  -3.14,  -3.43,  99.90,   0.31,
08/19 14Z,  -0.60,  -3.57,  -3.85,  99.90,   0.32,
08/19 15Z,  -0.60,  -3.75,  -3.99,  99.90,   0.36,  (min)
08/19 16Z,  -0.60,  -3.66,  -3.94,  99.90,   0.32,
08/19 17Z,  -0.60,  -3.33,  -3.63,  99.90,   0.30,
08/19 18Z,  -0.70,  -2.83,  -3.18,  99.90,   0.35,
08/19 19Z,  -0.70,  -2.27,  -2.60,  99.90,   0.37,
08/19 20Z,  -0.70,  -1.75,  -2.08,  99.90,   0.37,
08/19 21Z,  -0.70,  -1.35,  -1.79,  99.90,   0.26,
08/19 22Z,  -0.70,  -1.11,  -1.49,  99.90,   0.32,
08/19 23Z,  -0.70,  -1.02,  -1.41,  99.90,   0.31,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/20 00Z,  -0.70,  -1.04,  99.90,  -1.43,   0.31,
08/20 01Z,  -0.70,  -1.08,  99.90,  -1.48,   0.31,
08/20 02Z,  -0.70,  -1.09,  99.90,  -1.49,   0.30,  (min)
08/20 03Z,  -0.70,  -1.02,  99.90,  -1.42,   0.30,
08/20 04Z,  -0.70,  -0.85,  99.90,  -1.25,   0.30,
08/20 05Z,  -0.70,  -0.62,  99.90,  -1.03,   0.29,
08/20 06Z,  -0.70,  -0.39,  99.90,  -0.80,   0.29,
08/20 07Z,  -0.70,  -0.24,  99.90,  -0.66,   0.28,  (max)
08/20 08Z,  -0.70,  -0.25,  99.90,  -0.67,   0.28,
08/20 09Z,  -0.70,  -0.46,  99.90,  -0.89,   0.28,
08/20 10Z,  -0.70,  -0.89,  99.90,  -1.32,   0.27,
08/20 11Z,  -0.80,  -1.50,  99.90,  -2.03,   0.27,
08/20 12Z,  -0.80,  -2.21,  99.90,  -2.74,   0.27,
08/20 13Z,  -0.80,  -2.92,  99.90,  -3.45,   0.27,
08/20 14Z,  -0.80,  -3.51,  99.90,  -4.04,   0.27,
08/20 15Z,  -0.70,  -3.90,  99.90,  -4.33,   0.27,
08/20 16Z,  -0.70,  -4.01,  99.90,  -4.45,   0.27,  (min)
08/20 17Z,  -0.70,  -3.85,  99.90,  -4.28,   0.27,
08/20 18Z,  -0.70,  -3.46,  99.90,  -3.89,   0.27,
08/20 19Z,  -0.70,  -2.90,  99.90,  -3.33,   0.27,
08/20 20Z,  -0.70,  -2.30,  99.90,  -2.73,   0.27,
08/20 21Z,  -0.70,  -1.75,  99.90,  -2.18,   0.27,
08/20 22Z,  -0.70,  -1.32,  99.90,  -1.75,   0.27,
08/20 23Z,  -0.70,  -1.04,  99.90,  -1.47,   0.27,
08/21 00Z,  -0.70,  -0.90,  99.90,  -1.33,   0.27,
08/21 01Z,  -0.60,  -0.86,  99.90,  -1.19,   0.27,
08/21 02Z,  -0.60,  -0.84,  99.90,  -1.17,   0.27,
08/21 03Z,  -0.60,  -0.80,  99.90,  -1.13,   0.27,
08/21 04Z,  -0.60,  -0.69,  99.90,  -1.02,   0.27,
08/21 05Z,  -0.60,  -0.51,  99.90,  -0.85,   0.27,
08/21 06Z,  -0.60,  -0.32,  99.90,  -0.65,   0.27,
08/21 07Z,  -0.60,  -0.16,  99.90,  -0.49,   0.27,
08/21 08Z,  -0.60,  -0.11,  99.90,  -0.45,   0.27,  (max)
08/21 09Z,  -0.60,  -0.24,  99.90,  -0.57,   0.27,
08/21 10Z,  -0.60,  -0.57,  99.90,  -0.90,   0.27,
08/21 11Z,  -0.60,  -1.10,  99.90,  -1.44,   0.27,
08/21 12Z,  -0.60,  -1.78,  99.90,  -2.11,   0.27,
08/21 13Z,  -0.60,  -2.53,  99.90,  -2.86,   0.27,
08/21 14Z,  -0.50,  -3.23,  99.90,  -3.46,   0.27,
08/21 15Z,  -0.50,  -3.78,  99.90,  -4.01,   0.27,
08/21 16Z,  -0.50,  -4.10,  99.90,  -4.33,   0.27,
08/21 17Z,  -0.60,  -4.14,  99.90,  -4.48,   0.27,  (min)
08/21 18Z,  -0.60,  -3.92,  99.90,  -4.25,   0.27,
08/21 19Z,  -0.60,  -3.47,  99.90,  -3.80,   0.27,
08/21 20Z,  -0.60,  -2.89,  99.90,  -3.22,   0.27,
08/21 21Z,  -0.60,  -2.28,  99.90,  -2.61,   0.27,
08/21 22Z,  -0.60,  -1.73,  99.90,  -2.06,   0.27,
08/21 23Z,  -0.60,  -1.29,  99.90,  -1.62,   0.27,
08/22 00Z,  -0.60,  -1.00,  99.90,  -1.33,   0.27,
08/22 01Z,  -0.60,  -0.83,  99.90,  -1.16,   0.27,
08/22 02Z,  -0.60,  -0.74,  99.90,  -1.07,   0.27,
08/22 03Z,  -0.60,  -0.67,  99.90,  -1.00,   0.27,
08/22 04Z,  -0.60,  -0.57,  99.90,  -0.90,   0.27,
08/22 05Z,  -0.60,  -0.43,  99.90,  -0.76,   0.27,
08/22 06Z,  -0.60,  -0.25,  99.90,  -0.59,   0.27,
08/22 07Z,  -0.60,  -0.09,  99.90,  -0.42,   0.27,  (max)
08/22 08Z,  -0.70,  -0.01,  99.90,  -0.44,   0.27,  (min)
08/22 09Z,  -0.60,  -0.06,  99.90,  -0.39,   0.27,  (max)
08/22 10Z,  -0.70,  -0.29,  99.90,  -0.72,   0.27,
08/22 11Z,  -0.70,  -0.72,  99.90,  -1.15,   0.27,
08/22 12Z,  -0.70,  -1.33,  99.90,  -1.76,   0.27,
08/22 13Z,  -0.70,  -2.05,  99.90,  -2.48,   0.27,
08/22 14Z,  -0.70,  -2.79,  99.90,  -3.23,   0.27,
08/22 15Z,  -0.70,  -3.46,  99.90,  -3.89,   0.27,
08/22 16Z,  -0.70,  -3.95,  99.90,  -4.38,   0.27,
08/22 17Z,  -0.60,  -4.19,  99.90,  -4.53,   0.27,  (min)
08/22 18Z,  -0.60,  -4.17,  99.90,  -4.50,   0.27,
08/22 19Z,  -0.60,  -3.89,  99.90,  -4.22,   0.27,
08/22 20Z,  -0.60,  -3.42,  99.90,  -3.75,   0.27,
08/22 21Z,  -0.60,  -2.83,  99.90,  -3.16,   0.27,
08/22 22Z,  -0.60,  -2.23,  99.90,  -2.57,   0.27,
08/22 23Z,  -0.60,  -1.70,  99.90,  -2.03,   0.27,
08/23 00Z,  -0.60,  -1.28,  99.90,  -1.61,   0.27,
08/23 01Z,  -0.60,  -0.99,  99.90,  -1.32,   0.27,
08/23 02Z,  -0.60,  -0.79,  99.90,  -1.12,   0.27,
08/23 03Z,  -0.60,  -0.66,  99.90,  -0.99,   0.27,
08/23 04Z,  -0.60,  -0.54,  99.90,  -0.87,   0.27,
08/23 05Z,  -0.60,  -0.40,  99.90,  -0.73,   0.27,
08/23 06Z,  -0.60,  -0.23,  99.90,  -0.56,   0.27,
08/23 07Z,  -0.60,  -0.06,  99.90,  -0.39,   0.27,
08/23 08Z,  -0.60,   0.06,  99.90,  -0.27,   0.27,
08/23 09Z,  -0.60,   0.08,  99.90,  -0.25,   0.27,  (max)
08/23 10Z,  -0.60,  -0.06,  99.90,  -0.39,   0.27,
08/23 11Z,  -0.50,  -0.39,  99.90,  -0.62,   0.27,
08/23 12Z,  -0.50,  -0.90,  99.90,  -1.13,   0.27,
08/23 13Z,  -0.50,  -1.56,  99.90,  -1.79,   0.27,
08/23 14Z,  -0.50,  -2.29,  99.90,  -2.52,   0.27,
08/23 15Z,  -0.50,  -3.01,  99.90,  -3.24,   0.27,
08/23 16Z,  -0.50,  -3.62,  99.90,  -3.85,   0.27,
08/23 17Z,  -0.50,  -4.03,  99.90,  -4.26,   0.27,
08/23 18Z,  -0.50,  -4.20,  99.90,  -4.43,   0.27,