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
#Alitak, AK : 08/15/2026 04:22:48 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/13 12Z,  -1.50,  -2.86,  -2.71,  99.90,   1.65,  (max)
08/13 13Z,  -1.50,  -5.54,  -5.17,  99.90,   1.87,
08/13 14Z,  -1.50,  -9.15,  -8.86,  99.90,   1.79,
08/13 15Z,  -1.50, -12.89, -12.75,  99.90,   1.64,
08/13 16Z,  -1.50, -15.99, -15.87,  99.90,   1.62,
08/13 17Z,  -1.60, -17.79, -17.67,  99.90,   1.72,
08/13 18Z,  -1.60, -17.93, -17.89,  99.90,   1.64,  (min)
08/13 19Z,  -1.60, -16.28, -16.51,  99.90,   1.37,
08/13 20Z,  -1.60, -13.03, -13.50,  99.90,   1.13,
08/13 21Z,  -1.60,  -9.03,  -9.29,  99.90,   1.34,
08/13 22Z,  -1.60,  -5.54,  -5.49,  99.90,   1.65,
08/13 23Z,  -1.60,  -3.48,  -3.29,  99.90,   1.79,
08/14 00Z,  -1.50,  -3.17,  -2.96,  99.90,   1.71,  (max)
08/14 01Z,  -1.50,  -4.50,  -4.23,  99.90,   1.77,
08/14 02Z,  -1.50,  -6.99,  -6.63,  99.90,   1.86,
08/14 03Z,  -1.50,  -9.90,  -9.68,  99.90,   1.72,
08/14 04Z,  -1.50, -12.50, -12.42,  99.90,   1.58,
08/14 05Z,  -1.50, -14.14, -14.04,  99.90,   1.60,
08/14 06Z,  -1.50, -14.45, -14.30,  99.90,   1.65,  (min)
08/14 07Z,  -1.50, -13.28, -13.22,  99.90,   1.56,
08/14 08Z,  -1.50, -10.70, -10.80,  99.90,   1.40,
08/14 09Z,  -1.40,  -7.26,  -7.34,  99.90,   1.32,
08/14 10Z,  -1.40,  -4.07,  -4.09,  99.90,   1.38,
08/14 11Z,  -1.30,  -2.18,  -2.10,  99.90,   1.38,
08/14 12Z,  -1.40,  -2.04,  -1.97,  99.90,   1.47,  (max)
08/14 13Z,  -1.40,  -3.64,  -3.40,  99.90,   1.64,
08/14 14Z,  -1.30,  -6.60,  -6.23,  99.90,   1.67,
08/14 15Z,  -1.30, -10.24,  -9.98,  99.90,   1.56,
08/14 16Z,  -1.30, -13.74, -13.57,  99.90,   1.47,
08/14 17Z,  -1.30, -16.36, -16.27,  99.90,   1.39,
08/14 18Z,  -1.20, -17.54, -17.44,  99.90,   1.30,  (min)
08/14 19Z,  -1.20, -17.00, -16.90,  99.90,   1.30,
08/14 20Z,  -1.20, -14.72, -14.93,  99.90,   0.99,
08/14 21Z,  -1.10, -11.10, -11.26,  99.90,   0.94,
08/14 22Z,  -1.10,  -7.16,  -7.07,  99.90,   1.19,
08/14 23Z,  -1.00,  -4.12,  -3.86,  99.90,   1.26,
08/15 00Z,  -1.00,  -2.75,  -2.45,  99.90,   1.30,  (max)
08/15 01Z,  -1.00,  -3.16,  -2.96,  99.90,   1.20,
08/15 02Z,  -1.00,  -5.10,  -4.74,  99.90,   1.36,
08/15 03Z,  -1.00,  -7.97,  -7.74,  99.90,   1.23,
08/15 04Z,  -1.00, -11.00, -10.93,  99.90,   1.07,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/15 05Z,  -1.00, -13.48,  99.90, -13.41,   1.07,
08/15 06Z,  -0.90, -14.83,  99.90, -14.66,   1.08,  (min)
08/15 07Z,  -0.90, -14.74,  99.90, -14.56,   1.08,
08/15 08Z,  -0.80, -13.13,  99.90, -12.85,   1.09,
08/15 09Z,  -0.80, -10.25,  99.90,  -9.96,   1.09,
08/15 10Z,  -0.70,  -6.80,  99.90,  -6.41,   1.10,
08/15 11Z,  -0.70,  -3.95,  99.90,  -3.55,   1.10,
08/15 12Z,  -0.70,  -2.57,  99.90,  -2.16,   1.11,  (max)
08/15 13Z,  -0.70,  -2.93,  99.90,  -2.52,   1.11,
08/15 14Z,  -0.70,  -4.87,  99.90,  -4.46,   1.11,
08/15 15Z,  -0.80,  -7.88,  99.90,  -7.56,   1.12,
08/15 16Z,  -0.80, -11.25,  99.90, -10.93,   1.12,
08/15 17Z,  -0.80, -14.23,  99.90, -13.91,   1.12,
08/15 18Z,  -0.80, -16.16,  99.90, -15.83,   1.12,
08/15 19Z,  -0.70, -16.57,  99.90, -16.15,   1.12,  (min)
08/15 20Z,  -0.70, -15.35,  99.90, -14.93,   1.12,
08/15 21Z,  -0.70, -12.64,  99.90, -12.21,   1.12,
08/15 22Z,  -0.70,  -8.99,  99.90,  -8.56,   1.12,
08/15 23Z,  -0.70,  -5.48,  99.90,  -5.05,   1.12,
08/16 00Z,  -0.70,  -3.19,  99.90,  -2.76,   1.12,
08/16 01Z,  -0.80,  -2.62,  99.90,  -2.30,   1.12,  (max)
08/16 02Z,  -0.80,  -3.72,  99.90,  -3.39,   1.12,
08/16 03Z,  -0.80,  -6.08,  99.90,  -5.75,   1.12,
08/16 04Z,  -0.90,  -9.07,  99.90,  -8.84,   1.12,
08/16 05Z,  -0.90, -11.97,  99.90, -11.75,   1.12,
08/16 06Z,  -1.00, -14.13,  99.90, -14.01,   1.12,
08/16 07Z,  -1.00, -15.05,  99.90, -14.92,   1.12,  (min)
08/16 08Z,  -1.00, -14.51,  99.90, -14.39,   1.12,
08/16 09Z,  -0.90, -12.60,  99.90, -12.38,   1.12,
08/16 10Z,  -0.70,  -9.67,  99.90,  -9.25,   1.12,
08/16 11Z,  -0.60,  -6.53,  99.90,  -6.00,   1.12,
08/16 12Z,  -0.50,  -4.23,  99.90,  -3.61,   1.12,
08/16 13Z,  -0.50,  -3.45,  99.90,  -2.83,   1.12,  (max)
08/16 14Z,  -0.50,  -4.24,  99.90,  -3.62,   1.12,
08/16 15Z,  -0.50,  -6.30,  99.90,  -5.67,   1.12,
08/16 16Z,  -0.50,  -9.08,  99.90,  -8.46,   1.12,
08/16 17Z,  -0.50, -11.94,  99.90, -11.31,   1.12,
08/16 18Z,  -0.50, -14.19,  99.90, -13.57,   1.12,
08/16 19Z,  -0.50, -15.30,  99.90, -14.68,   1.12,  (min)
08/16 20Z,  -0.50, -14.97,  99.90, -14.35,   1.12,
08/16 21Z,  -0.50, -13.25,  99.90, -12.63,   1.12,
08/16 22Z,  -0.50, -10.42,  99.90,  -9.80,   1.12,
08/16 23Z,  -0.60,  -7.11,  99.90,  -6.58,   1.12,
08/17 00Z,  -0.60,  -4.32,  99.90,  -3.80,   1.12,
08/17 01Z,  -0.60,  -2.91,  99.90,  -2.39,   1.12,  (max)
08/17 02Z,  -0.50,  -3.11,  99.90,  -2.49,   1.12,
08/17 03Z,  -0.50,  -4.69,  99.90,  -4.07,   1.12,
08/17 04Z,  -0.40,  -7.21,  99.90,  -6.49,   1.12,
08/17 05Z,  -0.30, -10.07,  99.90,  -9.25,   1.12,
08/17 06Z,  -0.20, -12.64,  99.90, -11.72,   1.12,
08/17 07Z,  -0.10, -14.34,  99.90, -13.31,   1.12,
08/17 08Z,  -0.10, -14.77,  99.90, -13.75,   1.12,  (min)
08/17 09Z,  -0.10, -13.90,  99.90, -12.87,   1.12,
08/17 10Z,  -0.10, -11.91,  99.90, -10.88,   1.12,
08/17 11Z,  -0.10,  -9.20,  99.90,  -8.18,   1.12,
08/17 12Z,  -0.10,  -6.58,  99.90,  -5.56,   1.12,
08/17 13Z,  -0.10,  -4.94,  99.90,  -3.91,   1.12,
08/17 14Z,  -0.20,  -4.68,  99.90,  -3.76,   1.12,  (max)
08/17 15Z,  -0.20,  -5.69,  99.90,  -4.77,   1.12,
08/17 16Z,  -0.30,  -7.61,  99.90,  -6.79,   1.12,
08/17 17Z,  -0.20,  -9.95,  99.90,  -9.02,   1.12,
08/17 18Z,  -0.20, -12.12,  99.90, -11.19,   1.12,
08/17 19Z,  -0.10, -13.57,  99.90, -12.54,   1.12,
08/17 20Z,  -0.10, -13.89,  99.90, -12.87,   1.12,  (min)
08/17 21Z,  -0.10, -13.00,  99.90, -11.98,   1.12,
08/17 22Z,  -0.10, -11.09,  99.90, -10.06,   1.12,
08/17 23Z,  -0.20,  -8.48,  99.90,  -7.56,   1.12,
08/18 00Z,  -0.20,  -5.79,  99.90,  -4.86,   1.12,
08/18 01Z,  -0.30,  -3.86,  99.90,  -3.04,   1.12,
08/18 02Z,  -0.30,  -3.28,  99.90,  -2.46,   1.12,  (max)
08/18 03Z,  -0.30,  -4.03,  99.90,  -3.21,   1.12,
08/18 04Z,  -0.40,  -5.82,  99.90,  -5.10,   1.12,
08/18 05Z,  -0.40,  -8.25,  99.90,  -7.53,   1.12,
08/18 06Z,  -0.40, -10.79,  99.90, -10.07,   1.12,
08/18 07Z,  -0.40, -12.89,  99.90, -12.17,   1.12,
08/18 08Z,  -0.40, -14.08,  99.90, -13.36,   1.12,
08/18 09Z,  -0.40, -14.13,  99.90, -13.41,   1.12,  (min)
08/18 10Z,  -0.40, -13.13,  99.90, -12.41,   1.12,
08/18 11Z,  -0.40, -11.30,  99.90, -10.57,   1.12,
08/18 12Z,  -0.50,  -9.02,  99.90,  -8.40,   1.12,
08/18 13Z,  -0.50,  -7.01,  99.90,  -6.39,   1.12,
08/18 14Z,  -0.50,  -5.95,  99.90,  -5.33,   1.12,  (max)
08/18 15Z,  -0.60,  -6.02,  99.90,  -5.49,   1.12,
08/18 16Z,  -0.60,  -6.99,  99.90,  -6.47,   1.12,
08/18 17Z,  -0.60,  -8.57,  99.90,  -8.04,   1.12,
08/18 18Z,  -0.60, -10.32,  99.90,  -9.79,   1.12,
08/18 19Z,  99.90, -11.75,  99.90,  99.90,   1.12,
08/18 20Z,  99.90, -12.46,  99.90,  99.90,   1.12,
08/18 21Z,  99.90, -12.20,  99.90,  99.90,   1.12,
08/18 22Z,  99.90, -11.05,  99.90,  99.90,   1.12,
08/18 23Z,  99.90,  -9.26,  99.90,  99.90,   1.12,
08/19 00Z,  99.90,  -7.14,  99.90,  99.90,   1.12,