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 : 12/17/2025 13:22:43 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/15 18Z,   0.80,  -4.02,  -4.11,  99.90,  -0.89,
12/15 19Z,   0.80,  -2.18,  -2.21,  99.90,  -0.83,
12/15 20Z,   0.80,  -1.50,  -1.53,  99.90,  -0.83,  (max)
12/15 21Z,   0.80,  -2.12,  -2.21,  99.90,  -0.89,
12/15 22Z,   0.80,  -3.96,  -4.05,  99.90,  -0.89,
12/15 23Z,   0.80,  -6.75,  -6.78,  99.90,  -0.83,
12/16 00Z,   0.90, -10.07, -10.04,  99.90,  -0.87,
12/16 01Z,   0.90, -13.17, -13.08,  99.90,  -0.81,
12/16 02Z,   0.90, -15.20, -15.12,  99.90,  -0.82,
12/16 03Z,   0.80, -15.79, -15.79,  99.90,  -0.80,  (min)
12/16 04Z,   0.70, -14.92, -15.01,  99.90,  -0.79,
12/16 05Z,   0.70, -12.76, -12.99,  99.90,  -0.93,
12/16 06Z,   0.80,  -9.80, -10.14,  99.90,  -1.14,
12/16 07Z,   0.70,  -6.87,  -7.21,  99.90,  -1.04,
12/16 08Z,   0.70,  -4.70,  -4.90,  99.90,  -0.90,
12/16 09Z,   0.70,  -3.70,  -3.64,  99.90,  -0.64,  (max)
12/16 10Z,   0.70,  -3.97,  -3.72,  99.90,  -0.45,
12/16 11Z,   0.70,  -5.35,  -5.06,  99.90,  -0.41,
12/16 12Z,   0.80,  -7.50,  -7.20,  99.90,  -0.50,
12/16 13Z,   0.60,  -9.75,  -9.40,  99.90,  -0.25,
12/16 14Z,   0.30, -11.25, -11.29,  99.90,  -0.34,
12/16 15Z,   0.00, -11.45, -11.96,  99.90,  -0.51,  (min)
12/16 16Z,   0.00, -10.36, -10.81,  99.90,  -0.45,
12/16 17Z,   0.00,  -8.24,  -8.50,  99.90,  -0.26,
12/16 18Z,   0.30,  -5.53,  -5.85,  99.90,  -0.62,
12/16 19Z,   0.20,  -3.01,  -3.35,  99.90,  -0.54,
12/16 20Z,   0.10,  -1.42,  -1.60,  99.90,  -0.28,
12/16 21Z,   0.00,  -1.15,  -1.19,  99.90,  -0.04,  (max)
12/16 22Z,   0.00,  -2.28,  -2.33,  99.90,  -0.05,
12/16 23Z,   0.00,  -4.65,  -4.81,  99.90,  -0.16,
12/17 00Z,   0.10,  -7.93,  -7.98,  99.90,  -0.15,
12/17 01Z,   0.00, -11.58, -11.46,  99.90,   0.12,
12/17 02Z,  -0.10, -14.73, -14.61,  99.90,   0.22,
12/17 03Z,  -0.20, -16.53, -16.48,  99.90,   0.25,
12/17 04Z,  -0.30, -16.64, -16.67,  99.90,   0.27,  (min)
12/17 05Z,  -0.40, -15.16, -15.32,  99.90,   0.24,
12/17 06Z,  -0.20, -12.36, -12.88,  99.90,  -0.32,
12/17 07Z,  -0.30,  -8.93,  -9.64,  99.90,  -0.41,
12/17 08Z,  -0.20,  -5.78,  -6.31,  99.90,  -0.33,
12/17 09Z,  -0.20,  -3.63,  -3.95,  99.90,  -0.12,
12/17 10Z,  -0.20,  -2.85,  -3.01,  99.90,   0.04,  (max)
12/17 11Z,  -0.20,  -3.48,  -3.36,  99.90,   0.32,
12/17 12Z,  -0.10,  -5.28,  -5.01,  99.90,   0.37,
12/17 13Z,  -0.10,  -7.79,  -7.45,  99.90,   0.44,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/17 14Z,   0.00, -10.20,  99.90,  -9.82,   0.38,
12/17 15Z,   0.00, -11.55,  99.90, -11.24,   0.32,  (min)
12/17 16Z,   0.10, -11.38,  99.90, -11.03,   0.26,
12/17 17Z,   0.10,  -9.82,  99.90,  -9.53,   0.19,
12/17 18Z,   0.00,  -7.26,  99.90,  -7.13,   0.13,
12/17 19Z,  -0.10,  -4.34,  99.90,  -4.37,   0.07,
12/17 20Z,  -0.30,  -1.91,  99.90,  -2.20,   0.01,
12/17 21Z,  -0.40,  -0.67,  99.90,  -1.13,  -0.06,  (max)
12/17 22Z,  -0.50,  -0.95,  99.90,  -1.56,  -0.12,
12/17 23Z,  -0.40,  -2.70,  99.90,  -3.29,  -0.18,
12/18 00Z,  -0.40,  -5.69,  99.90,  -6.33,  -0.24,
12/18 01Z,  -0.40,  -9.48,  99.90, -10.19,  -0.31,
12/18 02Z,  -0.30, -13.37,  99.90, -13.98,  -0.31,
12/18 03Z,  -0.30, -16.37,  99.90, -16.97,  -0.31,
12/18 04Z,  -0.40, -17.65,  99.90, -18.36,  -0.31,  (min)
12/18 05Z,  -0.40, -17.06,  99.90, -17.76,  -0.31,
12/18 06Z,  -0.40, -14.80,  99.90, -15.50,  -0.31,
12/18 07Z,  -0.20, -11.35,  99.90, -11.86,  -0.31,
12/18 08Z,  -0.10,  -7.56,  99.90,  -7.97,  -0.31,
12/18 09Z,   0.00,  -4.38,  99.90,  -4.69,  -0.31,
12/18 10Z,  -0.10,  -2.48,  99.90,  -2.89,  -0.31,
12/18 11Z,  -0.20,  -2.15,  99.90,  -2.66,  -0.31,  (max)
12/18 12Z,  -0.20,  -3.34,  99.90,  -3.85,  -0.31,
12/18 13Z,  -0.20,  -5.70,  99.90,  -6.20,  -0.31,
12/18 14Z,  -0.20,  -8.58,  99.90,  -9.09,  -0.31,
12/18 15Z,  -0.30, -11.00,  99.90, -11.61,  -0.31,
12/18 16Z,  -0.60, -12.00,  99.90, -12.91,  -0.31,  (min)
12/18 17Z,  -0.60, -11.26,  99.90, -12.16,  -0.31,
12/18 18Z,  -0.60,  -9.10,  99.90, -10.00,  -0.31,
12/18 19Z,  -0.50,  -6.10,  99.90,  -6.90,  -0.31,
12/18 20Z,  -0.30,  -3.04,  99.90,  -3.64,  -0.31,
12/18 21Z,  -0.20,  -0.82,  99.90,  -1.33,  -0.31,
12/18 22Z,   0.00,  -0.08,  99.90,  -0.38,  -0.31,  (max)
12/18 23Z,   0.00,  -1.01,  99.90,  -1.31,  -0.31,
12/19 00Z,   0.00,  -3.48,  99.90,  -3.79,  -0.31,
12/19 01Z,   0.00,  -7.12,  99.90,  -7.42,  -0.31,
12/19 02Z,  -0.10, -11.33,  99.90, -11.74,  -0.31,
12/19 03Z,  -0.20, -15.26,  99.90, -15.77,  -0.31,
12/19 04Z,  -0.30, -17.83,  99.90, -18.44,  -0.31,
12/19 05Z,  -0.20, -18.36,  99.90, -18.86,  -0.31,  (min)
12/19 06Z,  -0.10, -16.89,  99.90, -17.29,  -0.31,
12/19 07Z,   0.00, -13.85,  99.90, -14.15,  -0.31,
12/19 08Z,   0.10,  -9.89,  99.90, -10.09,  -0.31,
12/19 09Z,   0.20,  -5.95,  99.90,  -6.05,  -0.31,
12/19 10Z,   0.20,  -2.96,  99.90,  -3.07,  -0.31,
12/19 11Z,   0.10,  -1.53,  99.90,  -1.73,  -0.31,  (max)
12/19 12Z,   0.10,  -1.83,  99.90,  -2.04,  -0.31,
12/19 13Z,   0.10,  -3.70,  99.90,  -3.91,  -0.31,
12/19 14Z,   0.10,  -6.61,  99.90,  -6.82,  -0.31,
12/19 15Z,   0.10,  -9.72,  99.90,  -9.93,  -0.31,
12/19 16Z,   0.00, -11.92,  99.90, -12.23,  -0.31,
12/19 17Z,   0.00, -12.33,  99.90, -12.64,  -0.31,  (min)
12/19 18Z,   0.00, -10.88,  99.90, -11.18,  -0.31,
12/19 19Z,   0.00,  -8.11,  99.90,  -8.42,  -0.31,
12/19 20Z,   0.00,  -4.78,  99.90,  -5.08,  -0.31,
12/19 21Z,   0.00,  -1.75,  99.90,  -2.05,  -0.31,
12/19 22Z,   0.00,   0.09,  99.90,  -0.22,  -0.31,
12/19 23Z,   0.00,   0.21,  99.90,  -0.09,  -0.31,  (max)
12/20 00Z,  -0.10,  -1.46,  99.90,  -1.87,  -0.31,
12/20 01Z,  -0.20,  -4.67,  99.90,  -5.18,  -0.31,
12/20 02Z,  -0.30,  -8.89,  99.90,  -9.49,  -0.31,
12/20 03Z,  -0.30, -13.34,  99.90, -13.95,  -0.31,
12/20 04Z,  -0.40, -17.02,  99.90, -17.73,  -0.31,
12/20 05Z,  -0.30, -18.88,  99.90, -19.49,  -0.31,  (min)
12/20 06Z,  -0.20, -18.47,  99.90, -18.98,  -0.31,
12/20 07Z,  -0.10, -16.12,  99.90, -16.52,  -0.31,
12/20 08Z,  -0.10, -12.42,  99.90, -12.83,  -0.31,
12/20 09Z,  -0.20,  -8.16,  99.90,  -8.67,  -0.31,
12/20 10Z,  -0.30,  -4.32,  99.90,  -4.93,  -0.31,
12/20 11Z,  -0.40,  -1.77,  99.90,  -2.47,  -0.31,
12/20 12Z,  -0.50,  -0.98,  99.90,  -1.79,  -0.31,  (max)
12/20 13Z,  -0.50,  -2.03,  99.90,  -2.84,  -0.31,
12/20 14Z,  -0.60,  -4.58,  99.90,  -5.48,  -0.31,
12/20 15Z,  -0.60,  -7.89,  99.90,  -8.80,  -0.31,
12/20 16Z,  -0.60, -10.98,  99.90, -11.88,  -0.31,
12/20 17Z,  -0.60, -12.68,  99.90, -13.59,  -0.31,  (min)
12/20 18Z,  -0.60, -12.33,  99.90, -13.23,  -0.31,
12/20 19Z,  -0.40, -10.14,  99.90, -10.85,  -0.31,
12/20 20Z,  -0.30,  -6.89,  99.90,  -7.50,  -0.31,
12/20 21Z,  -0.20,  -3.42,  99.90,  -3.92,  -0.31,
12/20 22Z,  -0.20,  -0.63,  99.90,  -1.14,  -0.31,
12/20 23Z,  -0.20,   0.66,  99.90,   0.15,  -0.31,  (max)
12/21 00Z,  -0.30,   0.06,  99.90,  -0.55,  -0.31,
12/21 01Z,  -0.50,  -2.40,  99.90,  -3.20,  -0.31,
12/21 02Z,  -0.60,  -6.29,  99.90,  -7.19,  -0.31,
12/21 03Z,  -0.70, -10.89,  99.90, -11.89,  -0.31,
12/21 04Z,  -0.70, -15.29,  99.90, -16.30,  -0.31,
12/21 05Z,  -0.70, -18.40,  99.90, -19.41,  -0.31,
12/21 06Z,  -0.60, -19.33,  99.90, -20.23,  -0.31,