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 : 10/17/2026 02:22:59 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/15 06Z,  -1.20, -12.17, -12.97,  99.90,   0.40,
10/15 07Z,  -1.30, -16.63, -16.84,  99.90,   1.09,
10/15 08Z,  -1.30, -20.58, -20.53,  99.90,   1.35,
10/15 09Z,  -1.30, -23.48, -23.80,  99.90,   0.98,
10/15 10Z,  -1.30, -24.94, -25.38,  99.90,   0.86,  (min)
10/15 11Z,  -1.30, -24.05, -24.28,  99.90,   1.07,
10/15 12Z,  -1.30, -20.58, -20.47,  99.90,   1.41,
10/15 13Z,  -1.30, -15.99, -16.38,  99.90,   0.91,
10/15 14Z,  -1.30, -11.91, -12.57,  99.90,   0.64,
10/15 15Z,  -1.30,  -8.90,  -9.39,  99.90,   0.81,
10/15 16Z,  -1.30,  -7.16,  -7.47,  99.90,   0.99,
10/15 17Z,  -1.20,  -7.14,  -7.27,  99.90,   1.07,  (max)
10/15 18Z,  -1.10,  -8.95,  -8.84,  99.90,   1.21,
10/15 19Z,  -1.00, -11.96, -11.77,  99.90,   1.19,
10/15 20Z,  -0.90, -15.03, -14.79,  99.90,   1.14,
10/15 21Z,  -0.90, -17.29, -17.06,  99.90,   1.13,
10/15 22Z,  -0.90, -18.39, -18.19,  99.90,   1.10,  (min)
10/15 23Z,  -0.70, -17.80, -17.28,  99.90,   1.22,
10/16 00Z,  -0.40, -15.08, -14.43,  99.90,   1.05,
10/16 01Z,  -0.30, -11.26, -11.42,  99.90,   0.14,
10/16 02Z,  -0.20,  -8.19,  -8.63,  99.90,  -0.24,
10/16 03Z,  -0.10,  -6.66,  -6.67,  99.90,   0.09,
10/16 04Z,   0.00,  -6.49,  -6.16,  99.90,   0.33,  (max)
10/16 05Z,   0.00,  -7.65,  -7.26,  99.90,   0.39,
10/16 06Z,   0.00, -10.24,  -9.90,  99.90,   0.34,
10/16 07Z,   0.10, -13.86, -13.34,  99.90,   0.42,
10/16 08Z,   0.20, -17.61, -16.74,  99.90,   0.67,
10/16 09Z,   0.30, -20.64, -20.07,  99.90,   0.27,
10/16 10Z,   0.30, -22.65, -22.62,  99.90,  -0.27,
10/16 11Z,   0.30, -23.38, -23.40,  99.90,  -0.32,  (min)
10/16 12Z,   0.30, -22.12, -21.62,  99.90,   0.20,
10/16 13Z,   0.30, -18.89, -18.16,  99.90,   0.43,
10/16 14Z,   0.40, -15.15, -14.70,  99.90,   0.05,
10/16 15Z,   0.40, -12.06, -11.57,  99.90,   0.09,
10/16 16Z,   0.40,  -9.75,  -9.17,  99.90,   0.18,
10/16 17Z,   0.40,  -8.36,  -7.97,  99.90,  -0.01,  (max)
10/16 18Z,   0.30,  -8.39,  -8.17,  99.90,  -0.08,
10/16 19Z,   0.40,  -9.97,  -9.85,  99.90,  -0.28,
10/16 20Z,   0.50, -12.46, -12.17,  99.90,  -0.21,
10/16 21Z,   0.50, -14.80, -14.45,  99.90,  -0.15,
10/16 22Z,   0.50, -16.32, -16.15,  99.90,  -0.33,
10/16 23Z,   0.40, -16.90, -16.80,  99.90,  -0.30,  (min)
10/17 00Z,   0.40, -16.11, -15.79,  99.90,  -0.08,
10/17 01Z,   0.40, -13.71, -13.69,  99.90,  -0.38,
10/17 02Z,   0.40, -10.80, -11.47,  99.90,  -1.07,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/17 03Z,   0.40,  -8.86,  99.90,  -9.44,  -0.99,
10/17 04Z,   0.40,  -8.15,  99.90,  -8.65,  -0.90,  (max)
10/17 05Z,   0.40,  -8.33,  99.90,  -8.74,  -0.82,
10/17 06Z,   0.40,  -9.45,  99.90,  -9.78,  -0.73,
10/17 07Z,   0.40, -11.68,  99.90, -11.93,  -0.64,
10/17 08Z,   0.40, -14.69,  99.90, -14.84,  -0.56,
10/17 09Z,   0.40, -17.64,  99.90, -17.71,  -0.47,
10/17 10Z,   0.30, -19.87,  99.90, -19.96,  -0.38,
10/17 11Z,   0.30, -21.32,  99.90, -21.32,  -0.30,
10/17 12Z,   0.30, -21.80,  99.90, -21.71,  -0.21,  (min)
10/17 13Z,   0.20, -20.64,  99.90, -20.57,  -0.13,
10/17 14Z,   0.20, -18.01,  99.90, -17.85,  -0.04,
10/17 15Z,   0.20, -15.16,  99.90, -15.00,  -0.04,
10/17 16Z,   0.10, -12.81,  99.90, -12.75,  -0.04,
10/17 17Z,   0.10, -10.82,  99.90, -10.76,  -0.04,
10/17 18Z,   0.10,  -9.41,  99.90,  -9.35,  -0.04,
10/17 19Z,   0.00,  -9.22,  99.90,  -9.26,  -0.04,  (max)
10/17 20Z,   0.00, -10.39,  99.90, -10.43,  -0.04,
10/17 21Z,   0.10, -12.31,  99.90, -12.25,  -0.04,
10/17 22Z,   0.10, -14.04,  99.90, -13.98,  -0.04,
10/17 23Z,   0.20, -15.16,  99.90, -15.00,  -0.04,
10/18 00Z,   0.30, -15.68,  99.90, -15.42,  -0.04,  (min)
10/18 01Z,   0.30, -15.16,  99.90, -14.90,  -0.04,
10/18 02Z,   0.30, -13.39,  99.90, -13.13,  -0.04,
10/18 03Z,   0.20, -11.41,  99.90, -11.25,  -0.04,
10/18 04Z,   0.20, -10.27,  99.90, -10.11,  -0.04,
10/18 05Z,   0.10,  -9.88,  99.90,  -9.82,  -0.04,  (max)
10/18 06Z,   0.10,  -9.90,  99.90,  -9.84,  -0.04,
10/18 07Z,   0.10, -10.61,  99.90, -10.55,  -0.04,
10/18 08Z,   0.10, -12.29,  99.90, -12.23,  -0.04,
10/18 09Z,   0.10, -14.63,  99.90, -14.57,  -0.04,
10/18 10Z,   0.10, -16.92,  99.90, -16.86,  -0.04,
10/18 11Z,   0.10, -18.68,  99.90, -18.62,  -0.04,
10/18 12Z,   0.10, -20.02,  99.90, -19.96,  -0.04,
10/18 13Z,   0.10, -20.68,  99.90, -20.62,  -0.04,  (min)
10/18 14Z,   0.10, -19.94,  99.90, -19.88,  -0.04,
10/18 15Z,   0.00, -17.96,  99.90, -18.00,  -0.04,
10/18 16Z,   0.00, -15.76,  99.90, -15.80,  -0.04,
10/18 17Z,   0.00, -13.71,  99.90, -13.75,  -0.04,
10/18 18Z,   0.00, -11.62,  99.90, -11.66,  -0.04,
10/18 19Z,   0.00,  -9.93,  99.90,  -9.97,  -0.04,
10/18 20Z,   0.00,  -9.39,  99.90,  -9.43,  -0.04,  (max)
10/18 21Z,  -0.10, -10.17,  99.90, -10.31,  -0.04,
10/18 22Z,  -0.10, -11.67,  99.90, -11.81,  -0.04,
10/18 23Z,  -0.10, -13.11,  99.90, -13.25,  -0.04,
10/19 00Z,  -0.10, -14.29,  99.90, -14.43,  -0.04,
10/19 01Z,  -0.10, -15.18,  99.90, -15.32,  -0.04,
10/19 02Z,  -0.10, -15.20,  99.90, -15.34,  -0.04,  (min)
10/19 03Z,  -0.10, -14.09,  99.90, -14.23,  -0.04,
10/19 04Z,  -0.20, -12.75,  99.90, -12.99,  -0.04,
10/19 05Z,  -0.20, -11.91,  99.90, -12.15,  -0.04,
10/19 06Z,  -0.20, -11.30,  99.90, -11.54,  -0.04,
10/19 07Z,  -0.30, -10.81,  99.90, -11.15,  -0.04,  (max)
10/19 08Z,  -0.30, -10.93,  99.90, -11.27,  -0.04,
10/19 09Z,  -0.30, -12.05,  99.90, -12.39,  -0.04,
10/19 10Z,  -0.30, -13.91,  99.90, -14.25,  -0.04,
10/19 11Z,  -0.30, -15.86,  99.90, -16.20,  -0.04,
10/19 12Z,  -0.30, -17.59,  99.90, -17.93,  -0.04,
10/19 13Z,  -0.30, -19.24,  99.90, -19.58,  -0.04,
10/19 14Z,  -0.40, -20.33,  99.90, -20.77,  -0.04,  (min)
10/19 15Z,  -0.50, -20.01,  99.90, -20.55,  -0.04,
10/19 16Z,  -0.50, -18.43,  99.90, -18.97,  -0.04,
10/19 17Z,  -0.50, -16.45,  99.90, -16.99,  -0.04,
10/19 18Z,  -0.60, -14.25,  99.90, -14.89,  -0.04,
10/19 19Z,  -0.60, -11.76,  99.90, -12.40,  -0.04,
10/19 20Z,  -0.60,  -9.68,  99.90, -10.32,  -0.04,
10/19 21Z,  -0.60,  -8.87,  99.90,  -9.51,  -0.04,  (max)
10/19 22Z,  -0.60,  -9.48,  99.90, -10.12,  -0.04,
10/19 23Z,  -0.60, -10.92,  99.90, -11.56,  -0.04,
10/20 00Z,  -0.50, -12.51,  99.90, -13.05,  -0.04,
10/20 01Z,  -0.50, -14.16,  99.90, -14.70,  -0.04,
10/20 02Z,  -0.50, -15.69,  99.90, -16.23,  -0.04,
10/20 03Z,  -0.50, -16.25,  99.90, -16.79,  -0.04,  (min)
10/20 04Z,  -0.50, -15.52,  99.90, -16.06,  -0.04,
10/20 05Z,  -0.60, -14.34,  99.90, -14.98,  -0.04,
10/20 06Z,  -0.60, -13.24,  99.90, -13.88,  -0.04,
10/20 07Z,  -0.60, -12.00,  99.90, -12.64,  -0.04,
10/20 08Z,  -0.60, -10.80,  99.90, -11.44,  -0.04,
10/20 09Z,  -0.60, -10.39,  99.90, -11.03,  -0.04,  (max)
10/20 10Z,  -0.50, -11.20,  99.90, -11.74,  -0.04,
10/20 11Z,  -0.50, -12.93,  99.90, -13.47,  -0.04,
10/20 12Z,  -0.60, -14.97,  99.90, -15.61,  -0.04,
10/20 13Z,  -0.60, -17.07,  99.90, -17.71,  -0.04,
10/20 14Z,  -0.70, -19.25,  99.90, -19.99,  -0.04,
10/20 15Z,  -0.80, -20.73,  99.90, -21.57,  -0.04,  (min)
10/20 16Z,  -0.90, -20.55,  99.90, -21.49,  -0.04,
10/20 17Z,  -1.00, -18.94,  99.90, -19.98,  -0.04,
10/20 18Z,  -1.20, -16.69,  99.90, -17.93,  -0.04,