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
#Nikiski, AK : 08/11/2026 04:22:57 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/09 12Z,  -0.40, -10.66, -11.64,  99.90,  -0.58,
08/09 13Z,  -0.30, -14.19, -15.18,  99.90,  -0.69,
08/09 14Z,  -0.30, -17.88, -18.71,  99.90,  -0.53,
08/09 15Z,  -0.40, -21.56, -22.25,  99.90,  -0.29,
08/09 16Z,  -0.40, -24.65, -25.26,  99.90,  -0.21,
08/09 17Z,  -0.40, -25.72, -26.86,  99.90,  -0.74,  (min)
08/09 18Z,  -0.40, -24.11, -25.66,  99.90,  -1.15,
08/09 19Z,  -0.40, -20.76, -21.92,  99.90,  -0.76,
08/09 20Z,  -0.40, -16.77, -17.78,  99.90,  -0.61,
08/09 21Z,  -0.50, -12.70, -14.02,  99.90,  -0.82,
08/09 22Z,  -0.50,  -9.39, -10.81,  99.90,  -0.92,
08/09 23Z,  -0.50,  -7.78,  -8.86,  99.90,  -0.58,
08/10 00Z,  -0.50,  -8.13,  -8.52,  99.90,   0.11,  (max)
08/10 01Z,  -0.50,  -9.91,  -9.99,  99.90,   0.42,
08/10 02Z,  -0.50, -12.31, -12.65,  99.90,   0.16,
08/10 03Z,  -0.50, -14.90, -15.43,  99.90,  -0.03,
08/10 04Z,  -0.50, -17.39, -17.65,  99.90,   0.24,
08/10 05Z,  -0.50, -18.63, -18.92,  99.90,   0.21,  (min)
08/10 06Z,  -0.50, -17.54, -18.17,  99.90,  -0.13,
08/10 07Z,  -0.50, -14.63, -15.43,  99.90,  -0.30,
08/10 08Z,  -0.50, -11.27, -12.21,  99.90,  -0.44,
08/10 09Z,  -0.50,  -8.20,  -9.14,  99.90,  -0.44,
08/10 10Z,  -0.50,  -5.96,  -6.89,  99.90,  -0.43,
08/10 11Z,  -0.50,  -5.30,  -6.14,  99.90,  -0.34,  (max)
08/10 12Z,  -0.40,  -6.67,  -7.53,  99.90,  -0.46,
08/10 13Z,  -0.40,  -9.74, -10.74,  99.90,  -0.60,
08/10 14Z,  -0.40, -13.77, -14.88,  99.90,  -0.71,
08/10 15Z,  -0.40, -18.18, -19.00,  99.90,  -0.42,
08/10 16Z,  -0.40, -22.70, -23.10,  99.90,   0.00,
08/10 17Z,  -0.50, -26.34, -26.68,  99.90,   0.16,
08/10 18Z,  -0.50, -27.39, -28.55,  99.90,  -0.66,  (min)
08/10 19Z,  -0.50, -25.29, -26.97,  99.90,  -1.18,
08/10 20Z,  -0.50, -21.16, -22.20,  99.90,  -0.54,
08/10 21Z,  -0.50, -16.24, -17.14,  99.90,  -0.40,
08/10 22Z,  -0.50, -11.37, -12.66,  99.90,  -0.79,
08/10 23Z,  -0.50,  -7.67,  -9.00,  99.90,  -0.83,
08/11 00Z,  -0.50,  -6.12,  -7.01,  99.90,  -0.39,  (max)
08/11 01Z,  -0.50,  -6.86,  -7.15,  99.90,   0.21,
08/11 02Z,  -0.50,  -9.23,  -9.51,  99.90,   0.22,
08/11 03Z,  -0.50, -12.39, -13.12,  99.90,  -0.23,
08/11 04Z,  -0.50, -15.88, -16.57,  99.90,  -0.19,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/11 05Z,  -0.50, -19.09,  99.90, -19.80,  -0.21,
08/11 06Z,  -0.50, -20.53,  99.90, -21.26,  -0.23,  (min)
08/11 07Z,  -0.50, -19.08,  99.90, -19.82,  -0.24,
08/11 08Z,  -0.40, -15.51,  99.90, -16.17,  -0.26,
08/11 09Z,  -0.40, -11.32,  99.90, -11.99,  -0.27,
08/11 10Z,  -0.40,  -7.44,  99.90,  -8.13,  -0.29,
08/11 11Z,  -0.40,  -4.71,  99.90,  -5.42,  -0.31,
08/11 12Z,  -0.30,  -4.02,  99.90,  -4.64,  -0.32,  (max)
08/11 13Z,  -0.30,  -5.71,  99.90,  -6.35,  -0.34,
08/11 14Z,  -0.30,  -9.33,  99.90,  -9.98,  -0.35,
08/11 15Z,  -0.30, -14.02,  99.90, -14.69,  -0.37,
08/11 16Z,  -0.30, -19.19,  99.90, -19.88,  -0.39,
08/11 17Z,  -0.30, -24.35,  99.90, -25.03,  -0.39,
08/11 18Z,  -0.30, -28.09,  99.90, -28.78,  -0.39,
08/11 19Z,  -0.30, -28.58,  99.90, -29.27,  -0.39,  (min)
08/11 20Z,  -0.30, -25.56,  99.90, -26.25,  -0.39,
08/11 21Z,  -0.20, -20.45,  99.90, -21.04,  -0.39,
08/11 22Z,  -0.20, -14.67,  99.90, -15.26,  -0.39,
08/11 23Z,  -0.20,  -9.34,  99.90,  -9.93,  -0.39,
08/12 00Z,  -0.20,  -5.73,  99.90,  -6.31,  -0.39,
08/12 01Z,  -0.20,  -4.70,  99.90,  -5.28,  -0.39,  (max)
08/12 02Z,  -0.10,  -6.18,  99.90,  -6.67,  -0.39,
08/12 03Z,  -0.10,  -9.37,  99.90,  -9.85,  -0.39,
08/12 04Z,  -0.10, -13.38,  99.90, -13.87,  -0.39,
08/12 05Z,  -0.10, -17.67,  99.90, -18.16,  -0.39,
08/12 06Z,  -0.10, -21.29,  99.90, -21.78,  -0.39,
08/12 07Z,  -0.10, -22.45,  99.90, -22.94,  -0.39,  (min)
08/12 08Z,  -0.10, -20.23,  99.90, -20.72,  -0.39,
08/12 09Z,  -0.10, -15.75,  99.90, -16.24,  -0.39,
08/12 10Z,  -0.10, -10.73,  99.90, -11.22,  -0.39,
08/12 11Z,  -0.10,  -6.29,  99.90,  -6.78,  -0.39,
08/12 12Z,  -0.10,  -3.45,  99.90,  -3.93,  -0.39,
08/12 13Z,  -0.10,  -3.08,  99.90,  -3.57,  -0.39,  (max)
08/12 14Z,  -0.20,  -5.36,  99.90,  -5.94,  -0.39,
08/12 15Z,  -0.20,  -9.63,  99.90, -10.22,  -0.39,
08/12 16Z,  -0.30, -14.98,  99.90, -15.67,  -0.39,
08/12 17Z,  -0.30, -20.73,  99.90, -21.42,  -0.39,
08/12 18Z,  -0.40, -26.12,  99.90, -26.91,  -0.39,
08/12 19Z,  -0.40, -29.42,  99.90, -30.20,  -0.39,  (min)
08/12 20Z,  -0.40, -28.86,  99.90, -29.65,  -0.39,
08/12 21Z,  -0.50, -24.67,  99.90, -25.56,  -0.39,
08/12 22Z,  -0.50, -18.64,  99.90, -19.52,  -0.39,
08/12 23Z,  -0.50, -12.35,  99.90, -13.23,  -0.39,
08/13 00Z,  -0.50,  -7.05,  99.90,  -7.94,  -0.39,
08/13 01Z,  -0.60,  -4.00,  99.90,  -4.99,  -0.39,
08/13 02Z,  -0.60,  -3.84,  99.90,  -4.83,  -0.39,  (max)
08/13 03Z,  -0.60,  -6.26,  99.90,  -7.25,  -0.39,
08/13 04Z,  -0.70, -10.32,  99.90, -11.41,  -0.39,
08/13 05Z,  -0.70, -15.10,  99.90, -16.19,  -0.39,
08/13 06Z,  -0.70, -19.91,  99.90, -21.00,  -0.39,
08/13 07Z,  -0.70, -23.47,  99.90, -24.56,  -0.39,
08/13 08Z,  -0.70, -23.90,  99.90, -24.98,  -0.39,  (min)
08/13 09Z,  -0.70, -20.65,  99.90, -21.74,  -0.39,
08/13 10Z,  -0.80, -15.30,  99.90, -16.48,  -0.39,
08/13 11Z,  -0.80,  -9.72,  99.90, -10.90,  -0.39,
08/13 12Z,  -0.70,  -5.13,  99.90,  -6.21,  -0.39,
08/13 13Z,  -0.70,  -2.57,  99.90,  -3.66,  -0.39,  (max)
08/13 14Z,  -0.80,  -2.81,  99.90,  -4.00,  -0.39,
08/13 15Z,  -0.80,  -5.77,  99.90,  -6.96,  -0.39,
08/13 16Z,  -0.80, -10.67,  99.90, -11.86,  -0.39,
08/13 17Z,  -0.80, -16.50,  99.90, -17.69,  -0.39,
08/13 18Z,  -0.80, -22.47,  99.90, -23.65,  -0.39,
08/13 19Z,  -0.90, -27.56,  99.90, -28.85,  -0.39,
08/13 20Z,  -0.90, -29.86,  99.90, -31.15,  -0.39,  (min)
08/13 21Z,  -0.90, -27.94,  99.90, -29.23,  -0.39,
08/13 22Z,  -0.90, -22.62,  99.90, -23.91,  -0.39,
08/13 23Z,  -0.90, -16.00,  99.90, -17.29,  -0.39,
08/14 00Z,  -0.90,  -9.71,  99.90, -11.00,  -0.39,
08/14 01Z,  -0.90,  -4.97,  99.90,  -6.26,  -0.39,
08/14 02Z,  -0.90,  -2.86,  99.90,  -4.15,  -0.39,  (max)
08/14 03Z,  -0.90,  -3.75,  99.90,  -5.04,  -0.39,
08/14 04Z,  -0.90,  -7.14,  99.90,  -8.42,  -0.39,
08/14 05Z,  -0.90, -11.96,  99.90, -13.24,  -0.39,
08/14 06Z,  -0.90, -17.24,  99.90, -18.52,  -0.39,
08/14 07Z,  -0.80, -22.14,  99.90, -23.33,  -0.39,
08/14 08Z,  -0.80, -25.16,  99.90, -26.35,  -0.39,  (min)
08/14 09Z,  -0.80, -24.53,  99.90, -25.72,  -0.39,
08/14 10Z,  -0.70, -20.26,  99.90, -21.35,  -0.39,
08/14 11Z,  -0.70, -14.33,  99.90, -15.42,  -0.39,
08/14 12Z,  -0.60,  -8.64,  99.90,  -9.63,  -0.39,
08/14 13Z,  -0.60,  -4.34,  99.90,  -5.32,  -0.39,
08/14 14Z,  -0.60,  -2.38,  99.90,  -3.37,  -0.39,  (max)
08/14 15Z,  -0.60,  -3.33,  99.90,  -4.32,  -0.39,
08/14 16Z,  -0.60,  -6.94,  99.90,  -7.93,  -0.39,
08/14 17Z,  -0.70, -12.28,  99.90, -13.36,  -0.39,
08/14 18Z,  -0.70, -18.24,  99.90, -19.33,  -0.39,
08/14 19Z,  99.90, -23.95,  99.90,  99.90,  -0.39,
08/14 20Z,  99.90, -28.20,  99.90,  99.90,  -0.39,
08/14 21Z,  99.90, -29.12,  99.90,  99.90,  -0.39,
08/14 22Z,  99.90, -25.81,  99.90,  99.90,  -0.39,
08/14 23Z,  99.90, -19.70,  99.90,  99.90,  -0.39,
08/15 00Z,  99.90, -13.04,  99.90,  99.90,  -0.39,