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 : 03/17/2026 02:22:49 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/15 06Z,  -0.60, -10.68, -11.49,  99.90,  -0.21,
03/15 07Z,  -0.50,  -7.69,  -8.67,  99.90,  -0.48,
03/15 08Z,  -0.50,  -5.19,  -6.20,  99.90,  -0.51,
03/15 09Z,  -0.40,  -3.73,  -4.64,  99.90,  -0.51,
03/15 10Z,  -0.40,  -3.57,  -4.38,  99.90,  -0.41,  (max)
03/15 11Z,  -0.40,  -4.66,  -5.36,  99.90,  -0.30,
03/15 12Z,  -0.50,  -6.73,  -7.28,  99.90,  -0.05,
03/15 13Z,  -0.60,  -9.23,  -9.54,  99.90,   0.29,
03/15 14Z,  -0.60, -11.30, -11.66,  99.90,   0.24,
03/15 15Z,  -0.60, -12.20, -12.79,  99.90,   0.01,  (min)
03/15 16Z,  -0.60, -11.78, -12.50,  99.90,  -0.12,
03/15 17Z,  -0.60, -10.20, -10.88,  99.90,  -0.08,
03/15 18Z,  -0.70,  -7.79,  -8.47,  99.90,   0.02,
03/15 19Z,  -0.60,  -5.18,  -5.93,  99.90,  -0.15,
03/15 20Z,  -0.50,  -3.21,  -3.94,  99.90,  -0.23,
03/15 21Z,  -0.30,  -2.42,  -3.05,  99.90,  -0.33,  (max)
03/15 22Z,  -0.20,  -3.05,  -3.56,  99.90,  -0.31,
03/15 23Z,  -0.20,  -5.01,  -5.54,  99.90,  -0.33,
03/16 00Z,  -0.20,  -8.00,  -8.60,  99.90,  -0.40,
03/16 01Z,   0.00, -11.53, -12.12,  99.90,  -0.59,
03/16 02Z,   0.00, -14.76, -15.34,  99.90,  -0.58,
03/16 03Z,   0.00, -16.75, -17.34,  99.90,  -0.59,
03/16 04Z,   0.00, -17.04, -17.55,  99.90,  -0.51,  (min)
03/16 05Z,   0.00, -15.64, -16.06,  99.90,  -0.42,
03/16 06Z,   0.20, -12.81, -13.22,  99.90,  -0.61,
03/16 07Z,   0.20,  -9.12,  -9.64,  99.90,  -0.72,
03/16 08Z,   0.30,  -5.54,  -6.17,  99.90,  -0.93,
03/16 09Z,   0.40,  -2.95,  -3.60,  99.90,  -1.05,
03/16 10Z,   0.50,  -1.92,  -2.47,  99.90,  -1.05,  (max)
03/16 11Z,   0.50,  -2.61,  -2.98,  99.90,  -0.87,
03/16 12Z,   0.40,  -4.83,  -5.12,  99.90,  -0.69,
03/16 13Z,   0.30,  -8.05,  -8.11,  99.90,  -0.36,
03/16 14Z,   0.30, -11.39, -11.25,  99.90,  -0.16,
03/16 15Z,   0.30, -13.73, -13.78,  99.90,  -0.35,
03/16 16Z,   0.30, -14.31, -14.62,  99.90,  -0.61,  (min)
03/16 17Z,   0.30, -13.09, -13.39,  99.90,  -0.60,
03/16 18Z,   0.50, -10.44, -10.74,  99.90,  -0.80,
03/16 19Z,   0.40,  -6.98,  -7.38,  99.90,  -0.80,
03/16 20Z,   0.40,  -3.65,  -4.07,  99.90,  -0.82,
03/16 21Z,   0.30,  -1.42,  -1.72,  99.90,  -0.60,
03/16 22Z,   0.30,  -0.88,  -0.96,  99.90,  -0.38,  (max)
03/16 23Z,   0.30,  -2.20,  -2.15,  99.90,  -0.25,
03/17 00Z,   0.30,  -5.14,  -5.03,  99.90,  -0.19,
03/17 01Z,   0.40,  -9.18,  -9.06,  99.90,  -0.28,
03/17 02Z,   0.40, -13.49, -13.32,  99.90,  -0.23,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/17 03Z,   0.40, -16.92,  99.90, -16.77,  -0.25,
03/17 04Z,   0.40, -18.45,  99.90, -18.31,  -0.26,  (min)
03/17 05Z,   0.40, -17.75,  99.90, -17.62,  -0.28,
03/17 06Z,   0.30, -15.10,  99.90, -15.09,  -0.29,
03/17 07Z,   0.30, -11.09,  99.90, -11.10,  -0.31,
03/17 08Z,   0.50,  -6.63,  99.90,  -6.45,  -0.32,
03/17 09Z,   0.60,  -2.85,  99.90,  -2.59,  -0.34,
03/17 10Z,   0.70,  -0.68,  99.90,  -0.33,  -0.35,
03/17 11Z,   0.70,  -0.57,  99.90,  -0.23,  -0.37,  (max)
03/17 12Z,   0.70,  -2.52,  99.90,  -2.20,  -0.38,
03/17 13Z,   0.80,  -6.05,  99.90,  -5.65,  -0.39,
03/17 14Z,   0.80, -10.34,  99.90,  -9.95,  -0.41,
03/17 15Z,   0.60, -14.18,  99.90, -13.99,  -0.41,
03/17 16Z,   0.50, -16.31,  99.90, -16.22,  -0.41,  (min)
03/17 17Z,   0.40, -16.07,  99.90, -16.08,  -0.41,
03/17 18Z,   0.20, -13.69,  99.90, -13.90,  -0.41,
03/17 19Z,   0.10,  -9.86,  99.90, -10.17,  -0.41,
03/17 20Z,   0.10,  -5.50,  99.90,  -5.81,  -0.41,
03/17 21Z,   0.10,  -1.77,  99.90,  -2.08,  -0.41,
03/17 22Z,   0.30,   0.31,  99.90,   0.20,  -0.41,
03/17 23Z,   0.40,   0.21,  99.90,   0.20,  -0.41,  (max)
03/18 00Z,   0.40,  -2.08,  99.90,  -2.09,  -0.41,
03/18 01Z,   0.40,  -6.12,  99.90,  -6.12,  -0.41,
03/18 02Z,   0.30, -11.05,  99.90, -11.16,  -0.41,
03/18 03Z,   0.10, -15.74,  99.90, -16.05,  -0.41,
03/18 04Z,   0.00, -18.83,  99.90, -19.24,  -0.41,
03/18 05Z,   0.00, -19.36,  99.90, -19.77,  -0.41,  (min)
03/18 06Z,   0.10, -17.33,  99.90, -17.64,  -0.41,
03/18 07Z,   0.20, -13.38,  99.90, -13.59,  -0.41,
03/18 08Z,   0.20,  -8.42,  99.90,  -8.63,  -0.41,
03/18 09Z,   0.10,  -3.61,  99.90,  -3.92,  -0.41,
03/18 10Z,   0.10,  -0.17,  99.90,  -0.48,  -0.41,
03/18 11Z,   0.10,   1.09,  99.90,   0.78,  -0.41,  (max)
03/18 12Z,   0.00,  -0.10,  99.90,  -0.51,  -0.41,
03/18 13Z,   0.00,  -3.48,  99.90,  -3.89,  -0.41,
03/18 14Z,   0.00,  -8.26,  99.90,  -8.67,  -0.41,
03/18 15Z,   0.00, -13.28,  99.90, -13.69,  -0.41,
03/18 16Z,   0.00, -17.10,  99.90, -17.51,  -0.41,
03/18 17Z,   0.00, -18.48,  99.90, -18.89,  -0.41,  (min)
03/18 18Z,   0.10, -17.06,  99.90, -17.37,  -0.41,
03/18 19Z,   0.20, -13.44,  99.90, -13.65,  -0.41,
03/18 20Z,   0.40,  -8.59,  99.90,  -8.60,  -0.41,
03/18 21Z,   0.50,  -3.68,  99.90,  -3.59,  -0.41,
03/18 22Z,   0.60,   0.02,  99.90,   0.21,  -0.41,
03/18 23Z,   0.60,   1.56,  99.90,   1.75,  -0.41,  (max)
03/19 00Z,   0.60,   0.56,  99.90,   0.75,  -0.41,
03/19 01Z,   0.50,  -2.80,  99.90,  -2.71,  -0.41,
03/19 02Z,   0.40,  -7.77,  99.90,  -7.78,  -0.41,
03/19 03Z,   0.20, -13.22,  99.90, -13.43,  -0.41,
03/19 04Z,   0.10, -17.73,  99.90, -18.04,  -0.41,
03/19 05Z,   0.10, -19.92,  99.90, -20.23,  -0.41,  (min)
03/19 06Z,   0.10, -19.12,  99.90, -19.43,  -0.41,
03/19 07Z,   0.10, -15.71,  99.90, -16.02,  -0.41,
03/19 08Z,   0.10, -10.70,  99.90, -11.01,  -0.41,
03/19 09Z,   0.20,  -5.25,  99.90,  -5.46,  -0.41,
03/19 10Z,   0.20,  -0.66,  99.90,  -0.87,  -0.41,
03/19 11Z,   0.30,   1.94,  99.90,   1.83,  -0.41,  (max)
03/19 12Z,   0.30,   1.92,  99.90,   1.81,  -0.41,
03/19 13Z,   0.30,  -0.73,  99.90,  -0.84,  -0.41,
03/19 14Z,   0.20,  -5.44,  99.90,  -5.65,  -0.41,
03/19 15Z,   0.20, -11.10,  99.90, -11.31,  -0.41,
03/19 16Z,   0.10, -16.31,  99.90, -16.62,  -0.41,
03/19 17Z,   0.10, -19.56,  99.90, -19.87,  -0.41,
03/19 18Z,   0.10, -19.81,  99.90, -20.12,  -0.41,  (min)
03/19 19Z,   0.20, -17.11,  99.90, -17.32,  -0.41,
03/19 20Z,   0.30, -12.43,  99.90, -12.54,  -0.41,
03/19 21Z,   0.40,  -6.95,  99.90,  -6.96,  -0.41,
03/19 22Z,   0.50,  -1.97,  99.90,  -1.88,  -0.41,
03/19 23Z,   0.50,   1.29,  99.90,   1.38,  -0.41,
03/20 00Z,   0.50,   2.01,  99.90,   2.10,  -0.41,  (max)
03/20 01Z,   0.40,   0.02,  99.90,   0.01,  -0.41,
03/20 02Z,   0.30,  -4.25,  99.90,  -4.36,  -0.41,
03/20 03Z,   0.20,  -9.76,  99.90,  -9.97,  -0.41,
03/20 04Z,   0.10, -15.15,  99.90, -15.46,  -0.41,
03/20 05Z,   0.10, -18.93,  99.90, -19.24,  -0.41,
03/20 06Z,   0.20, -19.85,  99.90, -20.06,  -0.41,  (min)
03/20 07Z,   0.30, -17.64,  99.90, -17.75,  -0.41,
03/20 08Z,   0.50, -13.12,  99.90, -13.03,  -0.41,
03/20 09Z,   0.70,  -7.55,  99.90,  -7.26,  -0.41,
03/20 10Z,   0.90,  -2.20,  99.90,  -1.70,  -0.41,
03/20 11Z,   0.90,   1.66,  99.90,   2.15,  -0.41,
03/20 12Z,   0.80,   3.06,  99.90,   3.45,  -0.41,  (max)
03/20 13Z,   0.60,   1.62,  99.90,   1.81,  -0.41,
03/20 14Z,   0.40,  -2.37,  99.90,  -2.38,  -0.41,
03/20 15Z,   0.10,  -8.02,  99.90,  -8.33,  -0.41,
03/20 16Z,   0.00, -14.00,  99.90, -14.41,  -0.41,
03/20 17Z,  -0.10, -18.81,  99.90, -19.32,  -0.41,
03/20 18Z,  -0.10, -21.06,  99.90, -21.57,  -0.41,