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
#Seldovia, AK : 07/16/2026 23:24:29 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/15 06Z,  -0.10, -15.66, -15.80,  99.90,  -0.04,  (min)
07/15 07Z,   0.00, -12.83, -12.79,  99.90,   0.04,
07/15 08Z,   0.00,  -8.42,  -8.46,  99.90,  -0.04,
07/15 09Z,   0.00,  -3.53,  -3.65,  99.90,  -0.12,
07/15 10Z,   0.00,   0.61,   0.53,  99.90,  -0.08,
07/15 11Z,   0.00,   2.89,   2.97,  99.90,   0.08,  (max)
07/15 12Z,   0.00,   2.69,   2.64,  99.90,  -0.05,
07/15 13Z,   0.00,  -0.11,  -0.37,  99.90,  -0.26,
07/15 14Z,  -0.10,  -5.08,  -5.31,  99.90,  -0.13,
07/15 15Z,  -0.10, -11.29, -11.20,  99.90,   0.19,
07/15 16Z,  -0.10, -17.41, -17.19,  99.90,   0.32,
07/15 17Z,  -0.10, -21.83, -21.69,  99.90,   0.24,
07/15 18Z,  -0.10, -23.33, -23.33,  99.90,   0.10,  (min)
07/15 19Z,   0.00, -21.73, -21.98,  99.90,  -0.25,
07/15 20Z,   0.00, -17.68, -18.16,  99.90,  -0.48,
07/15 21Z,   0.00, -12.16, -12.70,  99.90,  -0.54,
07/15 22Z,   0.00,  -6.39,  -6.76,  99.90,  -0.37,
07/15 23Z,   0.00,  -1.67,  -2.05,  99.90,  -0.38,
07/16 00Z,   0.00,   0.99,   0.47,  99.90,  -0.52,
07/16 01Z,   0.00,   1.05,   0.60,  99.90,  -0.45,  (max)
07/16 02Z,   0.00,  -1.44,  -1.80,  99.90,  -0.36,
07/16 03Z,  -0.10,  -5.82,  -6.13,  99.90,  -0.21,
07/16 04Z,  -0.10, -10.91, -11.12,  99.90,  -0.11,
07/16 05Z,  -0.20, -15.15, -15.43,  99.90,  -0.08,
07/16 06Z,  -0.20, -17.08, -17.72,  99.90,  -0.44,  (min)
07/16 07Z,  -0.20, -16.12, -16.65,  99.90,  -0.33,
07/16 08Z,  -0.20, -12.76, -13.00,  99.90,  -0.04,
07/16 09Z,  -0.20,  -8.00,  -8.21,  99.90,  -0.01,
07/16 10Z,  -0.20,  -2.97,  -3.41,  99.90,  -0.24,
07/16 11Z,  -0.20,   1.04,   0.64,  99.90,  -0.20,
07/16 12Z,  -0.30,   2.98,   2.71,  99.90,   0.03,  (max)
07/16 13Z,  -0.30,   2.29,   1.86,  99.90,  -0.13,
07/16 14Z,  -0.40,  -1.04,  -1.56,  99.90,  -0.12,
07/16 15Z,  -0.40,  -6.42,  -6.71,  99.90,   0.11,
07/16 16Z,  -0.40, -12.76, -12.64,  99.90,   0.52,
07/16 17Z,  -0.40, -18.56, -18.41,  99.90,   0.55,
07/16 18Z,  -0.40, -22.27, -22.20,  99.90,   0.47,
07/16 19Z,  -0.40, -22.86, -22.96,  99.90,   0.30,  (min)
07/16 20Z,  -0.40, -20.45, -20.74,  99.90,   0.11,
07/16 21Z,  -0.30, -15.86, -16.39,  99.90,  -0.23,
07/16 22Z,  -0.30, -10.14, -10.56,  99.90,  -0.12,
07/16 23Z,  -0.30,  -4.54,  -4.82,  99.90,   0.02,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 00Z,  -0.30,  -0.33,  99.90,  -0.61,   0.02,
07/17 01Z,  -0.30,   1.58,  99.90,   1.30,   0.01,  (max)
07/17 02Z,  -0.30,   0.81,  99.90,   0.52,   0.01,
07/17 03Z,  -0.40,  -2.42,  99.90,  -2.81,   0.00,
07/17 04Z,  -0.40,  -7.25,  99.90,  -7.65,  -0.00,
07/17 05Z,  -0.40, -12.37,  99.90, -12.78,  -0.01,
07/17 06Z,  -0.40, -16.23,  99.90, -16.64,  -0.01,
07/17 07Z,  -0.40, -17.54,  99.90, -17.96,  -0.02,  (min)
07/17 08Z,  -0.30, -16.02,  99.90, -16.34,  -0.02,
07/17 09Z,  -0.30, -12.34,  99.90, -12.66,  -0.03,
07/17 10Z,  -0.20,  -7.51,  99.90,  -7.74,  -0.03,
07/17 11Z,  -0.10,  -2.69,  99.90,  -2.82,  -0.04,
07/17 12Z,  -0.10,   0.92,  99.90,   0.78,  -0.04,
07/17 13Z,  -0.10,   2.32,  99.90,   2.19,  -0.04,  (max)
07/17 14Z,  -0.20,   1.09,  99.90,   0.86,  -0.04,
07/17 15Z,  -0.20,  -2.62,  99.90,  -2.86,  -0.04,
07/17 16Z,  -0.30,  -8.07,  99.90,  -8.40,  -0.04,
07/17 17Z,  -0.40, -14.05,  99.90, -14.48,  -0.04,
07/17 18Z,  -0.40, -19.08,  99.90, -19.52,  -0.04,
07/17 19Z,  -0.30, -21.76,  99.90, -22.10,  -0.04,  (min)
07/17 20Z,  -0.30, -21.39,  99.90, -21.73,  -0.04,
07/17 21Z,  -0.20, -18.34,  99.90, -18.58,  -0.04,
07/17 22Z,  -0.10, -13.53,  99.90, -13.67,  -0.04,
07/17 23Z,  -0.10,  -8.00,  99.90,  -8.13,  -0.04,
07/18 00Z,   0.00,  -2.95,  99.90,  -2.98,  -0.04,
07/18 01Z,   0.00,   0.46,  99.90,   0.42,  -0.04,
07/18 02Z,   0.00,   1.46,  99.90,   1.42,  -0.04,  (max)
07/18 03Z,  -0.10,  -0.12,  99.90,  -0.25,  -0.04,
07/18 04Z,  -0.20,  -3.85,  99.90,  -4.08,  -0.04,
07/18 05Z,  -0.20,  -8.75,  99.90,  -8.99,  -0.04,
07/18 06Z,  -0.20, -13.52,  99.90, -13.76,  -0.04,
07/18 07Z,  -0.10, -16.74,  99.90, -16.87,  -0.04,
07/18 08Z,  -0.10, -17.39,  99.90, -17.52,  -0.04,  (min)
07/18 09Z,   0.00, -15.46,  99.90, -15.50,  -0.04,
07/18 10Z,   0.00, -11.74,  99.90, -11.77,  -0.04,
07/18 11Z,   0.00,  -7.18,  99.90,  -7.21,  -0.04,
07/18 12Z,   0.00,  -2.85,  99.90,  -2.88,  -0.04,
07/18 13Z,   0.00,   0.13,  99.90,   0.09,  -0.04,
07/18 14Z,  -0.10,   0.93,  99.90,   0.79,  -0.04,  (max)
07/18 15Z,  -0.20,  -0.73,  99.90,  -0.96,  -0.04,
07/18 16Z,  -0.20,  -4.52,  99.90,  -4.76,  -0.04,
07/18 17Z,  -0.20,  -9.61,  99.90,  -9.85,  -0.04,
07/18 18Z,  -0.20, -14.80,  99.90, -15.03,  -0.04,
07/18 19Z,  -0.20, -18.75,  99.90, -18.99,  -0.04,
07/18 20Z,  -0.10, -20.32,  99.90, -20.45,  -0.04,  (min)
07/18 21Z,  -0.10, -19.13,  99.90, -19.26,  -0.04,
07/18 22Z,  -0.20, -15.74,  99.90, -15.98,  -0.04,
07/18 23Z,  -0.20, -11.07,  99.90, -11.30,  -0.04,
07/19 00Z,  -0.20,  -6.08,  99.90,  -6.31,  -0.04,
07/19 01Z,  -0.20,  -1.88,  99.90,  -2.11,  -0.04,
07/19 02Z,  -0.20,   0.54,  99.90,   0.30,  -0.04,
07/19 03Z,  -0.30,   0.65,  99.90,   0.31,  -0.04,  (max)
07/19 04Z,  -0.30,  -1.53,  99.90,  -1.87,  -0.04,
07/19 05Z,  -0.30,  -5.41,  99.90,  -5.75,  -0.04,
07/19 06Z,  -0.30, -10.01,  99.90, -10.35,  -0.04,
07/19 07Z,  -0.30, -14.15,  99.90, -14.48,  -0.04,
07/19 08Z,  -0.30, -16.63,  99.90, -16.96,  -0.04,
07/19 09Z,  -0.20, -16.73,  99.90, -16.97,  -0.04,  (min)
07/19 10Z,  -0.20, -14.67,  99.90, -14.91,  -0.04,
07/19 11Z,  -0.20, -11.21,  99.90, -11.44,  -0.04,
07/19 12Z,  -0.30,  -7.18,  99.90,  -7.52,  -0.04,
07/19 13Z,  -0.40,  -3.53,  99.90,  -3.97,  -0.04,
07/19 14Z,  -0.50,  -1.25,  99.90,  -1.79,  -0.04,
07/19 15Z,  -0.60,  -0.98,  99.90,  -1.61,  -0.04,  (max)
07/19 16Z,  -0.60,  -2.81,  99.90,  -3.44,  -0.04,
07/19 17Z,  -0.60,  -6.32,  99.90,  -6.96,  -0.04,
07/19 18Z,  -0.60, -10.66,  99.90, -11.30,  -0.04,
07/19 19Z,  -0.50, -14.78,  99.90, -15.31,  -0.04,
07/19 20Z,  -0.40, -17.56,  99.90, -18.00,  -0.04,
07/19 21Z,  -0.50, -18.15,  99.90, -18.68,  -0.04,  (min)
07/19 22Z,  -0.50, -16.43,  99.90, -16.97,  -0.04,
07/19 23Z,  -0.50, -13.06,  99.90, -13.60,  -0.04,
07/20 00Z,  -0.50,  -8.87,  99.90,  -9.40,  -0.04,
07/20 01Z,  -0.50,  -4.69,  99.90,  -5.23,  -0.04,
07/20 02Z,  -0.60,  -1.49,  99.90,  -2.13,  -0.04,
07/20 03Z,  -0.60,  -0.04,  99.90,  -0.68,  -0.04,  (max)
07/20 04Z,  -0.70,  -0.65,  99.90,  -1.39,  -0.04,
07/20 05Z,  -0.70,  -3.12,  99.90,  -3.85,  -0.04,
07/20 06Z,  -0.70,  -6.80,  99.90,  -7.54,  -0.04,
07/20 07Z,  -0.60, -10.82,  99.90, -11.46,  -0.04,
07/20 08Z,  -0.50, -14.22,  99.90, -14.75,  -0.04,
07/20 09Z,  -0.40, -16.04,  99.90, -16.48,  -0.04,  (min)
07/20 10Z,  -0.30, -15.84,  99.90, -16.17,  -0.04,
07/20 11Z,  -0.20, -13.91,  99.90, -14.15,  -0.04,
07/20 12Z,  -0.20, -10.94,  99.90, -11.18,  -0.04,
07/20 13Z,  -0.30,  -7.60,  99.90,  -7.94,  -0.04,
07/20 14Z,  -0.40,  -4.68,  99.90,  -5.12,  -0.04,
07/20 15Z,  -0.50,  -3.00,  99.90,  -3.54,  -0.04,  (max)
07/20 16Z,  -0.50,  -3.02,  99.90,  -3.55,  -0.04,
07/20 17Z,  -0.50,  -4.71,  99.90,  -5.24,  -0.04,
07/20 18Z,  -0.50,  -7.61,  99.90,  -8.15,  -0.04,