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 : 07/16/2026 22:22:45 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/15 06Z,  -0.20, -17.88, -18.07,  99.90,   0.01,
07/15 07Z,  -0.20, -21.45, -21.44,  99.90,   0.21,
07/15 08Z,  -0.20, -22.61, -23.15,  99.90,  -0.34,  (min)
07/15 09Z,  -0.20, -20.19, -20.60,  99.90,  -0.21,
07/15 10Z,  -0.20, -15.20, -14.78,  99.90,   0.62,
07/15 11Z,  -0.10,  -9.77,  -9.53,  99.90,   0.34,
07/15 12Z,  -0.10,  -5.34,  -5.18,  99.90,   0.26,
07/15 13Z,  -0.10,  -2.76,  99.90,  99.90,  99.90,
07/15 14Z,   0.00,  -2.70,  99.90,  99.90,  99.90,
07/15 15Z,   0.00,  -5.29,  99.90,  99.90,  99.90,
07/15 16Z,   0.00,  -9.94,  99.90,  99.90,  99.90,
07/15 17Z,   0.00, -15.69,  99.90,  99.90,  99.90,
07/15 18Z,   0.00, -21.66,  99.90,  99.90,  99.90,
07/15 19Z,   0.00, -27.09,  99.90,  99.90,  99.90,
07/15 20Z,   0.10, -30.49,  99.90,  99.90,  99.90,
07/15 21Z,   0.10, -30.03,  99.90,  99.90,  99.90,
07/15 22Z,   0.10, -25.63,  99.90,  99.90,  99.90,
07/15 23Z,   0.20, -19.22,  99.90,  99.90,  99.90,
07/16 00Z,   0.20, -12.74,  99.90,  99.90,  99.90,
07/16 01Z,   0.20,  -7.40,  99.90,  99.90,  99.90,
07/16 02Z,   0.20,  -4.22,  99.90,  99.90,  99.90,
07/16 03Z,   0.20,  -3.84,  99.90,  99.90,  99.90,
07/16 04Z,   0.20,  -6.09,  99.90,  99.90,  99.90,
07/16 05Z,   0.20, -10.12,  99.90,  99.90,  99.90,
07/16 06Z,   0.10, -14.88,  99.90,  99.90,  99.90,
07/16 07Z,   0.10, -19.52,  99.90,  99.90,  99.90,
07/16 08Z,   0.10, -22.95,  99.90,  99.90,  99.90,
07/16 09Z,   0.10, -23.45,  99.90,  99.90,  99.90,
07/16 10Z,   0.10, -20.22,  99.90,  99.90,  99.90,
07/16 11Z,   0.00, -14.74,  99.90,  99.90,  99.90,
07/16 12Z,   0.00,  -9.22,  99.90,  99.90,  99.90,
07/16 13Z,   0.00,  -4.95,  99.90,  99.90,  99.90,
07/16 14Z,   0.00,  -2.70,  99.90,  99.90,  99.90,
07/16 15Z,   0.00,  -3.06,  99.90,  99.90,  99.90,  (max)
07/16 16Z,   0.00,  -6.05,  -6.43,  99.90,  -0.38,
07/16 17Z,  -0.10, -11.03, -11.71,  99.90,  -0.58,
07/16 18Z,  -0.10, -16.97, -16.89,  99.90,   0.18,
07/16 19Z,  -0.10, -22.91, -21.90,  99.90,   1.11,
07/16 20Z,  -0.20, -27.93, -26.55,  99.90,   1.58,
07/16 21Z,  -0.20, -30.40, -29.71,  99.90,   0.89,
07/16 22Z,  -0.20, -28.78, -29.90,  99.90,  -0.92,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 23Z,  -0.30, -23.56,  99.90, -24.70,  -0.84,
07/17 00Z,  -0.30, -16.95,  99.90, -18.01,  -0.76,
07/17 01Z,  -0.30, -10.75,  99.90, -11.73,  -0.68,
07/17 02Z,  -0.30,  -5.98,  99.90,  -6.88,  -0.59,
07/17 03Z,  -0.40,  -3.54,  99.90,  -4.45,  -0.51,  (max)
07/17 04Z,  -0.40,  -3.91,  99.90,  -4.74,  -0.43,
07/17 05Z,  -0.40,  -6.83,  99.90,  -7.58,  -0.34,
07/17 06Z,  -0.40, -11.36,  99.90, -12.02,  -0.26,
07/17 07Z,  -0.40, -16.39,  99.90, -16.96,  -0.18,
07/17 08Z,  -0.40, -20.99,  99.90, -21.49,  -0.09,
07/17 09Z,  -0.40, -23.97,  99.90, -24.38,  -0.01,  (min)
07/17 10Z,  -0.50, -23.67,  99.90, -24.10,   0.07,
07/17 11Z,  -0.50, -19.81,  99.90, -20.24,   0.07,
07/17 12Z,  -0.50, -14.21,  99.90, -14.64,   0.07,
07/17 13Z,  -0.50,  -8.96,  99.90,  -9.39,   0.07,
07/17 14Z,  -0.50,  -5.10,  99.90,  -5.53,   0.07,
07/17 15Z,  -0.50,  -3.27,  99.90,  -3.70,   0.07,  (max)
07/17 16Z,  -0.50,  -4.02,  99.90,  -4.45,   0.07,
07/17 17Z,  -0.60,  -7.32,  99.90,  -7.84,   0.07,
07/17 18Z,  -0.60, -12.43,  99.90, -12.95,   0.07,
07/17 19Z,  -0.60, -18.23,  99.90, -18.76,   0.07,
07/17 20Z,  -0.60, -23.74,  99.90, -24.26,   0.07,
07/17 21Z,  -0.60, -27.94,  99.90, -28.46,   0.07,
07/17 22Z,  -0.60, -29.25,  99.90, -29.78,   0.07,  (min)
07/17 23Z,  -0.50, -26.57,  99.90, -27.00,   0.07,
07/18 00Z,  -0.50, -20.94,  99.90, -21.37,   0.07,
07/18 01Z,  -0.50, -14.61,  99.90, -15.04,   0.07,
07/18 02Z,  -0.50,  -9.05,  99.90,  -9.48,   0.07,
07/18 03Z,  -0.40,  -5.07,  99.90,  -5.40,   0.07,
07/18 04Z,  -0.40,  -3.44,  99.90,  -3.76,   0.07,  (max)
07/18 05Z,  -0.40,  -4.54,  99.90,  -4.87,   0.07,
07/18 06Z,  -0.30,  -8.01,  99.90,  -8.24,   0.07,
07/18 07Z,  -0.30, -12.80,  99.90, -13.03,   0.07,
07/18 08Z,  -0.30, -17.76,  99.90, -17.99,   0.07,
07/18 09Z,  -0.30, -22.00,  99.90, -22.23,   0.07,
07/18 10Z,  -0.30, -24.31,  99.90, -24.54,   0.07,  (min)
07/18 11Z,  -0.20, -23.30,  99.90, -23.43,   0.07,
07/18 12Z,  -0.20, -19.16,  99.90, -19.28,   0.07,
07/18 13Z,  -0.20, -13.86,  99.90, -13.99,   0.07,
07/18 14Z,  -0.10,  -9.18,  99.90,  -9.21,   0.07,
07/18 15Z,  -0.10,  -5.85,  99.90,  -5.88,   0.07,
07/18 16Z,  -0.20,  -4.45,  99.90,  -4.57,   0.07,  (max)
07/18 17Z,  -0.20,  -5.49,  99.90,  -5.62,   0.07,
07/18 18Z,  -0.20,  -8.90,  99.90,  -9.03,   0.07,
07/18 19Z,  -0.20, -13.86,  99.90, -13.98,   0.07,
07/18 20Z,  -0.20, -19.15,  99.90, -19.28,   0.07,
07/18 21Z,  -0.20, -23.83,  99.90, -23.95,   0.07,
07/18 22Z,  -0.20, -26.95,  99.90, -27.08,   0.07,
07/18 23Z,  -0.20, -27.13,  99.90, -27.25,   0.07,  (min)
07/19 00Z,  -0.20, -23.74,  99.90, -23.87,   0.07,
07/19 01Z,  -0.20, -18.20,  99.90, -18.32,   0.07,
07/19 02Z,  -0.20, -12.55,  99.90, -12.68,   0.07,
07/19 03Z,  -0.20,  -7.88,  99.90,  -8.01,   0.07,
07/19 04Z,  -0.20,  -4.78,  99.90,  -4.90,   0.07,
07/19 05Z,  -0.20,  -3.94,  99.90,  -4.06,   0.07,  (max)
07/19 06Z,  -0.30,  -5.66,  99.90,  -5.89,   0.07,
07/19 07Z,  -0.30,  -9.44,  99.90,  -9.67,   0.07,
07/19 08Z,  -0.30, -14.16,  99.90, -14.39,   0.07,
07/19 09Z,  -0.40, -18.72,  99.90, -19.05,   0.07,
07/19 10Z,  -0.40, -22.36,  99.90, -22.69,   0.07,
07/19 11Z,  -0.40, -24.00,  99.90, -24.33,   0.07,  (min)
07/19 12Z,  -0.40, -22.55,  99.90, -22.88,   0.07,
07/19 13Z,  -0.40, -18.55,  99.90, -18.88,   0.07,
07/19 14Z,  -0.40, -13.91,  99.90, -14.24,   0.07,
07/19 15Z,  -0.50,  -9.95,  99.90, -10.38,   0.07,
07/19 16Z,  -0.60,  -7.14,  99.90,  -7.67,   0.07,
07/19 17Z,  -0.60,  -6.06,  99.90,  -6.59,   0.07,  (max)
07/19 18Z,  -0.70,  -7.24,  99.90,  -7.87,   0.07,
07/19 19Z,  -0.70, -10.52,  99.90, -11.15,   0.07,
07/19 20Z,  -0.70, -14.97,  99.90, -15.60,   0.07,
07/19 21Z,  -0.80, -19.40,  99.90, -20.13,   0.07,
07/19 22Z,  -0.80, -23.01,  99.90, -23.73,   0.07,
07/19 23Z,  -0.80, -25.03,  99.90, -25.76,   0.07,  (min)
07/20 00Z,  -0.80, -24.35,  99.90, -25.08,   0.07,
07/20 01Z,  -0.80, -20.73,  99.90, -21.46,   0.07,
07/20 02Z,  -0.90, -15.74,  99.90, -16.57,   0.07,
07/20 03Z,  -0.90, -11.07,  99.90, -11.90,   0.07,
07/20 04Z,  -0.90,  -7.37,  99.90,  -8.20,   0.07,
07/20 05Z,  -0.90,  -5.12,  99.90,  -5.94,   0.07,
07/20 06Z,  -1.00,  -4.95,  99.90,  -5.88,   0.07,  (max)
07/20 07Z,  -1.00,  -7.07,  99.90,  -8.00,   0.07,
07/20 08Z,  -1.00, -10.86,  99.90, -11.79,   0.07,
07/20 09Z,  -1.00, -15.16,  99.90, -16.09,   0.07,
07/20 10Z,  -1.00, -19.09,  99.90, -20.01,   0.07,
07/20 11Z,  -1.00, -22.10,  99.90, -23.02,   0.07,
07/20 12Z,  -0.90, -23.27,  99.90, -24.09,   0.07,
07/20 13Z,  99.90, -21.75,  99.90,  99.90,   0.07,
07/20 14Z,  99.90, -18.26,  99.90,  99.90,   0.07,
07/20 15Z,  99.90, -14.46,  99.90,  99.90,   0.07,
07/20 16Z,  99.90, -11.19,  99.90,  99.90,   0.07,
07/20 17Z,  99.90,  -8.77,  99.90,  99.90,   0.07,
07/20 18Z,  99.90,  -7.84,  99.90,  99.90,   0.07,