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
#Valdez, AK : 05/18/2026 06:23:28 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 12Z,   0.40,  -4.97,  -6.08,  99.90,  -1.51,
05/16 13Z,   0.30,  -8.90,  -9.97,  99.90,  -1.37,
05/16 14Z,   0.20, -12.43, -13.35,  99.90,  -1.12,
05/16 15Z,   0.10, -14.70, -15.54,  99.90,  -0.94,
05/16 16Z,   0.20, -15.09, -15.93,  99.90,  -1.04,  (min)
05/16 17Z,   0.20, -13.53, -14.40,  99.90,  -1.07,
05/16 18Z,   0.20, -10.58, -11.47,  99.90,  -1.09,
05/16 19Z,   0.20,  -7.16,  -8.21,  99.90,  -1.25,
05/16 20Z,   0.30,  -4.13,  -5.26,  99.90,  -1.43,
05/16 21Z,   0.40,  -2.04,  -3.24,  99.90,  -1.60,
05/16 22Z,   0.50,  -1.20,  -2.44,  99.90,  -1.74,  (max)
05/16 23Z,   0.50,  -1.66,  -2.91,  99.90,  -1.75,
05/17 00Z,   0.20,  -3.28,  -4.59,  99.90,  -1.51,
05/17 01Z,   0.20,  -5.63,  -7.01,  99.90,  -1.58,
05/17 02Z,   0.30,  -8.03,  -9.42,  99.90,  -1.69,
05/17 03Z,   0.30,  -9.66, -10.81,  99.90,  -1.45,
05/17 04Z,   0.40,  -9.85, -10.86,  99.90,  -1.41,  (min)
05/17 05Z,   0.30,  -8.35,  -9.29,  99.90,  -1.24,
05/17 06Z,   0.30,  -5.54,  -6.39,  99.90,  -1.15,
05/17 07Z,   0.40,  -2.28,  -3.11,  99.90,  -1.23,
05/17 08Z,   0.50,   0.49,  -0.37,  99.90,  -1.36,
05/17 09Z,   0.60,   2.11,   1.35,  99.90,  -1.36,
05/17 10Z,   0.50,   2.23,   1.50,  99.90,  -1.23,  (max)
05/17 11Z,   0.50,   0.78,   0.11,  99.90,  -1.17,
05/17 12Z,   1.00,  -2.10,  -2.65,  99.90,  -1.55,
05/17 13Z,   1.00,  -5.98,  -6.37,  99.90,  -1.39,
05/17 14Z,   0.90, -10.13, -10.35,  99.90,  -1.12,
05/17 15Z,   0.80, -13.62, -13.67,  99.90,  -0.85,
05/17 16Z,   0.80, -15.56, -15.56,  99.90,  -0.80,  (min)
05/17 17Z,   0.90, -15.45, -15.49,  99.90,  -0.94,
05/17 18Z,   1.50, -13.40, -13.51,  99.90,  -1.61,
05/17 19Z,   1.40, -10.13, -10.37,  99.90,  -1.64,
05/17 20Z,   1.20,  -6.60,  -7.01,  99.90,  -1.61,
05/17 21Z,   1.10,  -3.63,  -4.23,  99.90,  -1.70,
05/17 22Z,   1.00,  -1.71,  -2.49,  99.90,  -1.78,
05/17 23Z,   0.80,  -1.08,  -2.00,  99.90,  -1.72,  (max)
05/18 00Z,   1.00,  -1.76,  -2.74,  99.90,  -1.98,
05/18 01Z,   0.90,  -3.57,  -4.51,  99.90,  -1.84,
05/18 02Z,   0.80,  -5.99,  -6.81,  99.90,  -1.62,
05/18 03Z,   0.80,  -8.29,  -9.00,  99.90,  -1.51,
05/18 04Z,   0.60,  -9.64, -10.35,  99.90,  -1.31,  (min)
05/18 05Z,   0.50,  -9.42, -10.04,  99.90,  -1.12,
05/18 06Z,   0.40,  -7.55,  -8.14,  99.90,  -0.99,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 07Z,   0.50,  -4.55,  99.90,  -5.09,  -1.04,
05/18 08Z,   0.70,  -1.36,  99.90,  -1.75,  -1.09,
05/18 09Z,   0.90,   1.15,  99.90,   0.91,  -1.13,
05/18 10Z,   1.00,   2.39,  99.90,   2.21,  -1.18,  (max)
05/18 11Z,   1.00,   2.11,  99.90,   1.88,  -1.23,
05/18 12Z,   1.00,   0.27,  99.90,   0.00,  -1.27,
05/18 13Z,   0.90,  -2.91,  99.90,  -3.33,  -1.32,
05/18 14Z,   0.70,  -6.95,  99.90,  -7.62,  -1.36,
05/18 15Z,   0.50, -11.06,  99.90, -11.97,  -1.41,
05/18 16Z,   0.30, -14.29,  99.90, -15.44,  -1.46,
05/18 17Z,   0.30, -15.81,  99.90, -17.01,  -1.50,  (min)
05/18 18Z,   0.30, -15.25,  99.90, -16.50,  -1.55,
05/18 19Z,   0.50, -12.88,  99.90, -13.93,  -1.55,
05/18 20Z,   0.60,  -9.50,  99.90, -10.45,  -1.55,
05/18 21Z,   0.70,  -6.07,  99.90,  -6.92,  -1.55,
05/18 22Z,   0.70,  -3.31,  99.90,  -4.16,  -1.55,
05/18 23Z,   0.80,  -1.64,  99.90,  -2.39,  -1.55,
05/19 00Z,   0.90,  -1.23,  99.90,  -1.88,  -1.55,  (max)
05/19 01Z,   0.90,  -2.08,  99.90,  -2.73,  -1.55,
05/19 02Z,   0.80,  -3.96,  99.90,  -4.71,  -1.55,
05/19 03Z,   0.70,  -6.32,  99.90,  -7.17,  -1.55,
05/19 04Z,   0.70,  -8.41,  99.90,  -9.26,  -1.55,
05/19 05Z,   0.70,  -9.44,  99.90, -10.29,  -1.55,  (min)
05/19 06Z,   0.60,  -8.90,  99.90,  -9.85,  -1.55,
05/19 07Z,   0.60,  -6.82,  99.90,  -7.77,  -1.55,
05/19 08Z,   0.60,  -3.84,  99.90,  -4.79,  -1.55,
05/19 09Z,   0.60,  -0.88,  99.90,  -1.83,  -1.55,
05/19 10Z,   0.60,   1.26,  99.90,   0.31,  -1.55,
05/19 11Z,   0.60,   2.13,  99.90,   1.18,  -1.55,  (max)
05/19 12Z,   0.70,   1.53,  99.90,   0.68,  -1.55,
05/19 13Z,   0.70,  -0.52,  99.90,  -1.36,  -1.55,
05/19 14Z,   0.80,  -3.77,  99.90,  -4.52,  -1.55,
05/19 15Z,   0.80,  -7.71,  99.90,  -8.46,  -1.55,
05/19 16Z,   0.70, -11.56,  99.90, -12.40,  -1.55,
05/19 17Z,   0.70, -14.40,  99.90, -15.25,  -1.55,
05/19 18Z,   0.60, -15.50,  99.90, -16.45,  -1.55,  (min)
05/19 19Z,   0.60, -14.61,  99.90, -15.56,  -1.55,
05/19 20Z,   0.50, -12.10,  99.90, -13.15,  -1.55,
05/19 21Z,   0.50,  -8.82,  99.90,  -9.87,  -1.55,
05/19 22Z,   0.50,  -5.65,  99.90,  -6.70,  -1.55,
05/19 23Z,   0.60,  -3.20,  99.90,  -4.15,  -1.55,
05/20 00Z,   0.60,  -1.80,  99.90,  -2.75,  -1.55,
05/20 01Z,   0.60,  -1.57,  99.90,  -2.52,  -1.55,  (max)
05/20 02Z,   0.50,  -2.48,  99.90,  -3.53,  -1.55,
05/20 03Z,   0.50,  -4.30,  99.90,  -5.35,  -1.55,
05/20 04Z,   0.40,  -6.50,  99.90,  -7.65,  -1.55,
05/20 05Z,   0.30,  -8.35,  99.90,  -9.60,  -1.55,
05/20 06Z,   0.30,  -9.12,  99.90, -10.37,  -1.55,  (min)
05/20 07Z,   0.40,  -8.39,  99.90,  -9.54,  -1.55,
05/20 08Z,   0.50,  -6.30,  99.90,  -7.35,  -1.55,
05/20 09Z,   0.60,  -3.53,  99.90,  -4.47,  -1.55,
05/20 10Z,   0.60,  -0.93,  99.90,  -1.88,  -1.55,
05/20 11Z,   0.60,   0.81,  99.90,  -0.14,  -1.55,
05/20 12Z,   0.60,   1.35,  99.90,   0.40,  -1.55,  (max)
05/20 13Z,   0.60,   0.59,  99.90,  -0.36,  -1.55,
05/20 14Z,   0.50,  -1.44,  99.90,  -2.49,  -1.55,
05/20 15Z,   0.50,  -4.52,  99.90,  -5.57,  -1.55,
05/20 16Z,   0.40,  -8.16,  99.90,  -9.31,  -1.55,
05/20 17Z,   0.50, -11.62,  99.90, -12.67,  -1.55,
05/20 18Z,   0.60, -14.04,  99.90, -14.99,  -1.55,
05/20 19Z,   0.70, -14.78,  99.90, -15.63,  -1.55,  (min)
05/20 20Z,   0.80, -13.69,  99.90, -14.44,  -1.55,
05/20 21Z,   1.00, -11.22,  99.90, -11.77,  -1.55,
05/20 22Z,   1.10,  -8.20,  99.90,  -8.65,  -1.55,
05/20 23Z,   1.10,  -5.39,  99.90,  -5.84,  -1.55,
05/21 00Z,   1.30,  -3.28,  99.90,  -3.53,  -1.55,
05/21 01Z,   1.40,  -2.09,  99.90,  -2.24,  -1.55,
05/21 02Z,   1.40,  -1.93,  99.90,  -2.07,  -1.55,  (max)
05/21 03Z,   1.30,  -2.79,  99.90,  -3.04,  -1.55,
05/21 04Z,   1.20,  -4.47,  99.90,  -4.82,  -1.55,
05/21 05Z,   1.10,  -6.49,  99.90,  -6.94,  -1.55,
05/21 06Z,   1.20,  -8.15,  99.90,  -8.49,  -1.55,
05/21 07Z,   1.30,  -8.76,  99.90,  -9.01,  -1.55,  (min)
05/21 08Z,   1.30,  -8.00,  99.90,  -8.25,  -1.55,
05/21 09Z,   1.30,  -6.08,  99.90,  -6.33,  -1.55,
05/21 10Z,   1.20,  -3.67,  99.90,  -4.02,  -1.55,
05/21 11Z,   1.10,  -1.52,  99.90,  -1.97,  -1.55,
05/21 12Z,   1.00,  -0.16,  99.90,  -0.70,  -1.55,
05/21 13Z,   0.80,   0.20,  99.90,  -0.55,  -1.55,  (max)
05/21 14Z,   0.80,  -0.52,  99.90,  -1.27,  -1.55,
05/21 15Z,   0.70,  -2.34,  99.90,  -3.18,  -1.55,
05/21 16Z,   0.70,  -5.08,  99.90,  -5.93,  -1.55,
05/21 17Z,   0.80,  -8.31,  99.90,  -9.06,  -1.55,
05/21 18Z,   0.80, -11.32,  99.90, -12.07,  -1.55,
05/21 19Z,   0.80, -13.34,  99.90, -14.09,  -1.55,
05/21 20Z,   0.80, -13.79,  99.90, -14.54,  -1.55,  (min)
05/21 21Z,   0.80, -12.64,  99.90, -13.39,  -1.55,
05/21 22Z,   0.80, -10.36,  99.90, -11.11,  -1.55,
05/21 23Z,   0.70,  -7.70,  99.90,  -8.55,  -1.55,
05/22 00Z,   0.60,  -5.28,  99.90,  -6.23,  -1.55,