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 : 08/13/2026 14:23:32 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/11 18Z,   0.40,  -8.40,  -9.99,  99.90,  -1.99,
08/11 19Z,   0.40,  -5.43,  -7.00,  99.90,  -1.97,
08/11 20Z,   0.40,  -3.01,  -4.51,  99.90,  -1.90,
08/11 21Z,   0.40,  -1.56,  -2.94,  99.90,  -1.78,
08/11 22Z,   0.40,  -1.31,  -2.71,  99.90,  -1.80,  (max)
08/11 23Z,   0.40,  -2.28,  -3.73,  99.90,  -1.85,
08/12 00Z,   0.40,  -4.23,  -5.77,  99.90,  -1.94,
08/12 01Z,   0.40,  -6.61,  -8.21,  99.90,  -2.00,
08/12 02Z,   0.30,  -8.65, -10.20,  99.90,  -1.85,
08/12 03Z,   0.30,  -9.55, -11.01,  99.90,  -1.76,  (min)
08/12 04Z,   0.20,  -8.89, -10.38,  99.90,  -1.69,
08/12 05Z,   0.20,  -6.83,  -8.37,  99.90,  -1.74,
08/12 06Z,   0.40,  -4.00,  -5.64,  99.90,  -2.04,
08/12 07Z,   0.40,  -1.22,  -2.85,  99.90,  -2.03,
08/12 08Z,   0.40,   0.85,  -0.76,  99.90,  -2.01,
08/12 09Z,   0.40,   1.75,   0.27,  99.90,  -1.88,  (max)
08/12 10Z,   0.30,   1.22,  -0.27,  99.90,  -1.79,
08/12 11Z,   0.20,  -0.79,  -2.36,  99.90,  -1.77,
08/12 12Z,   0.30,  -4.03,  -5.68,  99.90,  -1.95,
08/12 13Z,   0.20,  -7.92,  -9.55,  99.90,  -1.83,
08/12 14Z,   0.20, -11.60, -13.19,  99.90,  -1.79,
08/12 15Z,   0.10, -14.10, -15.66,  99.90,  -1.66,
08/12 16Z,   0.00, -14.73, -16.33,  99.90,  -1.60,  (min)
08/12 17Z,   0.00, -13.40, -15.08,  99.90,  -1.68,
08/12 18Z,   0.20, -10.63, -12.43,  99.90,  -2.00,
08/12 19Z,   0.20,  -7.27,  -9.11,  99.90,  -2.04,
08/12 20Z,   0.20,  -4.11,  -5.92,  99.90,  -2.01,
08/12 21Z,   0.20,  -1.73,  -3.42,  99.90,  -1.89,
08/12 22Z,   0.10,  -0.53,  -2.05,  99.90,  -1.62,  (max)
08/12 23Z,   0.10,  -0.73,  -2.33,  99.90,  -1.70,
08/13 00Z,   0.20,  -2.29,  -4.10,  99.90,  -2.01,
08/13 01Z,   0.10,  -4.86,  -6.66,  99.90,  -1.90,
08/13 02Z,   0.10,  -7.70,  -9.39,  99.90,  -1.79,
08/13 03Z,   0.00,  -9.89, -11.53,  99.90,  -1.64,
08/13 04Z,   0.00, -10.59, -12.35,  99.90,  -1.76,  (min)
08/13 05Z,   0.00,  -9.51, -11.33,  99.90,  -1.82,
08/13 06Z,   0.10,  -6.99,  -8.82,  99.90,  -1.93,
08/13 07Z,   0.10,  -3.84,  -5.60,  99.90,  -1.86,
08/13 08Z,   0.10,  -0.91,  -2.59,  99.90,  -1.78,
08/13 09Z,   0.00,   1.14,  -0.50,  99.90,  -1.64,
08/13 10Z,   0.00,   1.87,   0.31,  99.90,  -1.56,  (max)
08/13 11Z,   0.00,   1.04,  -0.52,  99.90,  -1.56,
08/13 12Z,   0.00,  -1.35,  -2.95,  99.90,  -1.60,
08/13 13Z,   0.00,  -4.94,  -6.62,  99.90,  -1.68,
08/13 14Z,   0.00,  -9.01, -10.69,  99.90,  -1.68,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/13 15Z,   0.00, -12.56,  99.90, -14.24,  -1.68,
08/13 16Z,   0.00, -14.59,  99.90, -16.28,  -1.69,  (min)
08/13 17Z,   0.00, -14.54,  99.90, -16.23,  -1.69,
08/13 18Z,   0.00, -12.54,  99.90, -14.24,  -1.70,
08/13 19Z,   0.10,  -9.29,  99.90, -10.90,  -1.70,
08/13 20Z,   0.10,  -5.72,  99.90,  -7.33,  -1.71,
08/13 21Z,   0.20,  -2.62,  99.90,  -4.13,  -1.71,
08/13 22Z,   0.20,  -0.52,  99.90,  -2.04,  -1.72,
08/13 23Z,   0.20,   0.19,  99.90,  -1.33,  -1.72,  (max)
08/14 00Z,   0.20,  -0.63,  99.90,  -2.16,  -1.73,
08/14 01Z,   0.20,  -2.83,  99.90,  -4.36,  -1.73,
08/14 02Z,   0.20,  -5.88,  99.90,  -7.42,  -1.74,
08/14 03Z,   0.20,  -8.93,  99.90, -10.47,  -1.74,
08/14 04Z,   0.30, -10.97,  99.90, -12.41,  -1.74,
08/14 05Z,   0.40, -11.27,  99.90, -12.61,  -1.74,  (min)
08/14 06Z,   0.40,  -9.72,  99.90, -11.06,  -1.74,
08/14 07Z,   0.40,  -6.85,  99.90,  -8.18,  -1.74,
08/14 08Z,   0.40,  -3.55,  99.90,  -4.89,  -1.74,
08/14 09Z,   0.40,  -0.68,  99.90,  -2.02,  -1.74,
08/14 10Z,   0.40,   1.14,  99.90,  -0.20,  -1.74,
08/14 11Z,   0.30,   1.53,  99.90,   0.09,  -1.74,  (max)
08/14 12Z,   0.30,   0.30,  99.90,  -1.13,  -1.74,
08/14 13Z,   0.40,  -2.42,  99.90,  -3.75,  -1.74,
08/14 14Z,   0.50,  -6.15,  99.90,  -7.39,  -1.74,
08/14 15Z,   0.50, -10.07,  99.90, -11.31,  -1.74,
08/14 16Z,   0.50, -13.13,  99.90, -14.37,  -1.74,
08/14 17Z,   0.50, -14.43,  99.90, -15.67,  -1.74,  (min)
08/14 18Z,   0.60, -13.62,  99.90, -14.76,  -1.74,
08/14 19Z,   0.60, -11.03,  99.90, -12.17,  -1.74,
08/14 20Z,   0.60,  -7.51,  99.90,  -8.65,  -1.74,
08/14 21Z,   0.60,  -4.00,  99.90,  -5.14,  -1.74,
08/14 22Z,   0.60,  -1.22,  99.90,  -2.36,  -1.74,
08/14 23Z,   0.60,   0.33,  99.90,  -0.80,  -1.74,
08/15 00Z,   0.70,   0.40,  99.90,  -0.64,  -1.74,  (max)
08/15 01Z,   0.70,  -1.07,  99.90,  -2.11,  -1.74,
08/15 02Z,   0.70,  -3.78,  99.90,  -4.81,  -1.74,
08/15 03Z,   0.70,  -7.07,  99.90,  -8.11,  -1.74,
08/15 04Z,   0.60, -10.01,  99.90, -11.15,  -1.74,
08/15 05Z,   0.60, -11.68,  99.90, -12.81,  -1.74,  (min)
08/15 06Z,   0.60, -11.48,  99.90, -12.62,  -1.74,
08/15 07Z,   0.70,  -9.52,  99.90, -10.56,  -1.74,
08/15 08Z,   0.70,  -6.47,  99.90,  -7.51,  -1.74,
08/15 09Z,   0.80,  -3.26,  99.90,  -4.20,  -1.74,
08/15 10Z,   0.80,  -0.68,  99.90,  -1.62,  -1.74,
08/15 11Z,   0.90,   0.73,  99.90,  -0.11,  -1.74,  (max)
08/15 12Z,   0.90,   0.68,  99.90,  -0.16,  -1.74,
08/15 13Z,   0.80,  -0.89,  99.90,  -1.83,  -1.74,
08/15 14Z,   0.70,  -3.76,  99.90,  -4.80,  -1.74,
08/15 15Z,   0.60,  -7.35,  99.90,  -8.49,  -1.74,
08/15 16Z,   0.60, -10.78,  99.90, -11.92,  -1.74,
08/15 17Z,   0.60, -13.10,  99.90, -14.23,  -1.74,
08/15 18Z,   0.70, -13.57,  99.90, -14.60,  -1.74,  (min)
08/15 19Z,   0.70, -12.05,  99.90, -13.09,  -1.74,
08/15 20Z,   0.70,  -9.08,  99.90, -10.12,  -1.74,
08/15 21Z,   0.80,  -5.57,  99.90,  -6.51,  -1.74,
08/15 22Z,   0.80,  -2.41,  99.90,  -3.35,  -1.74,
08/15 23Z,   0.80,  -0.22,  99.90,  -1.15,  -1.74,
08/16 00Z,   0.70,   0.65,  99.90,  -0.39,  -1.74,  (max)
08/16 01Z,   0.70,   0.04,  99.90,  -1.00,  -1.74,
08/16 02Z,   0.70,  -1.95,  99.90,  -2.99,  -1.74,
08/16 03Z,   0.80,  -4.92,  99.90,  -5.86,  -1.74,
08/16 04Z,   0.70,  -8.16,  99.90,  -9.20,  -1.74,
08/16 05Z,   0.70, -10.76,  99.90, -11.79,  -1.74,
08/16 06Z,   0.70, -11.91,  99.90, -12.94,  -1.74,  (min)
08/16 07Z,   0.70, -11.23,  99.90, -12.27,  -1.74,
08/16 08Z,   0.70,  -9.01,  99.90, -10.04,  -1.74,
08/16 09Z,   0.70,  -6.00,  99.90,  -7.04,  -1.74,
08/16 10Z,   0.70,  -3.11,  99.90,  -4.15,  -1.74,
08/16 11Z,   0.80,  -1.02,  99.90,  -1.96,  -1.74,
08/16 12Z,   0.80,  -0.12,  99.90,  -1.06,  -1.74,  (max)
08/16 13Z,   0.70,  -0.56,  99.90,  -1.60,  -1.74,
08/16 14Z,   0.70,  -2.32,  99.90,  -3.36,  -1.74,
08/16 15Z,   0.50,  -5.08,  99.90,  -6.31,  -1.74,
08/16 16Z,   0.50,  -8.23,  99.90,  -9.47,  -1.74,
08/16 17Z,   0.50, -10.95,  99.90, -12.19,  -1.74,
08/16 18Z,   0.60, -12.40,  99.90, -13.54,  -1.74,  (min)
08/16 19Z,   0.60, -12.08,  99.90, -13.22,  -1.74,
08/16 20Z,   0.60, -10.06,  99.90, -11.20,  -1.74,
08/16 21Z,   0.70,  -6.99,  99.90,  -8.03,  -1.74,
08/16 22Z,   0.70,  -3.80,  99.90,  -4.84,  -1.74,
08/16 23Z,   0.60,  -1.25,  99.90,  -2.39,  -1.74,
08/17 00Z,   0.70,   0.21,  99.90,  -0.83,  -1.74,
08/17 01Z,   0.70,   0.37,  99.90,  -0.67,  -1.74,  (max)
08/17 02Z,   0.70,  -0.78,  99.90,  -1.82,  -1.74,
08/17 03Z,   0.60,  -3.06,  99.90,  -4.20,  -1.74,
08/17 04Z,   0.60,  -6.02,  99.90,  -7.16,  -1.74,
08/17 05Z,   0.60,  -8.95,  99.90, -10.09,  -1.74,
08/17 06Z,   0.80, -11.04,  99.90, -11.98,  -1.74,