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
#Ketchikan, AK : 10/11/2026 18:24:12 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/10 00Z,  -0.50,  -8.92,  -9.06,  99.90,   0.36,
10/10 01Z,  -0.50, -13.07, -13.23,  99.90,   0.34,
10/10 02Z,  -0.50, -15.79, -16.02,  99.90,   0.27,
10/10 03Z,  -0.60, -16.43, -16.66,  99.90,   0.37,  (min)
10/10 04Z,  -0.60, -14.88, -15.16,  99.90,   0.32,
10/10 05Z,  -0.70, -11.60, -11.91,  99.90,   0.39,
10/10 06Z,  -0.70,  -7.44,  -7.74,  99.90,   0.40,
10/10 07Z,  -0.80,  -3.42,  -3.76,  99.90,   0.46,
10/10 08Z,  -0.80,  -0.52,  -0.82,  99.90,   0.50,
10/10 09Z,  -0.90,   0.57,   0.30,  99.90,   0.63,  (max)
10/10 10Z,  -0.90,  -0.47,  -0.72,  99.90,   0.65,
10/10 11Z,  -0.90,  -3.41,  -3.56,  99.90,   0.75,
10/10 12Z,  -0.80,  -7.48,  -7.64,  99.90,   0.64,
10/10 13Z,  -0.80, -11.56, -11.80,  99.90,   0.56,
10/10 14Z,  -0.90, -14.48, -14.92,  99.90,   0.46,
10/10 15Z,  -1.00, -15.41, -15.94,  99.90,   0.47,  (min)
10/10 16Z,  -1.00, -14.10, -14.69,  99.90,   0.41,
10/10 17Z,  -1.00, -10.93, -11.51,  99.90,   0.42,
10/10 18Z,  -0.90,  -6.73,  -7.23,  99.90,   0.40,
10/10 19Z,  -0.90,  -2.56,  -2.94,  99.90,   0.52,
10/10 20Z,  -0.90,   0.58,   0.22,  99.90,   0.54,
10/10 21Z,  -0.90,   1.89,   1.61,  99.90,   0.62,  (max)
10/10 22Z,  -0.90,   1.01,   0.73,  99.90,   0.62,
10/10 23Z,  -0.80,  -1.94,  -2.15,  99.90,   0.59,
10/11 00Z,  -0.70,  -6.31,  -6.52,  99.90,   0.49,
10/11 01Z,  -0.70, -11.03, -11.23,  99.90,   0.50,
10/11 02Z,  -0.70, -14.90, -15.08,  99.90,   0.52,
10/11 03Z,  -0.70, -16.95, -17.13,  99.90,   0.52,  (min)
10/11 04Z,  -0.80, -16.71, -16.99,  99.90,   0.52,
10/11 05Z,  -0.80, -14.34, -14.74,  99.90,   0.40,
10/11 06Z,  -0.70, -10.51, -10.92,  99.90,   0.29,
10/11 07Z,  -0.70,  -6.18,  -6.62,  99.90,   0.26,
10/11 08Z,  -0.70,  -2.40,  -2.80,  99.90,   0.30,
10/11 09Z,  -0.70,  -0.04,  -0.25,  99.90,   0.49,
10/11 10Z,  -0.70,   0.33,   0.21,  99.90,   0.58,  (max)
10/11 11Z,  -0.60,  -1.39,  -1.47,  99.90,   0.52,
10/11 12Z,  -0.50,  -4.75,  -4.74,  99.90,   0.51,
10/11 13Z,  -0.50,  -8.82,  -8.76,  99.90,   0.56,
10/11 14Z,  -0.50, -12.42, -12.51,  99.90,   0.41,
10/11 15Z,  -0.50, -14.50, -14.73,  99.90,   0.27,  (min)
10/11 16Z,  -0.60, -14.45, -14.64,  99.90,   0.41,
10/11 17Z,  -0.60, -12.29, -12.57,  99.90,   0.32,
10/11 18Z,  -0.60,  -8.63,  -8.93,  99.90,   0.30,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/11 19Z,  -0.50,  -4.44,  99.90,  -4.62,   0.31,
10/11 20Z,  -0.50,  -0.74,  99.90,  -0.92,   0.32,
10/11 21Z,  -0.50,   1.54,  99.90,   1.37,   0.32,
10/11 22Z,  -0.40,   1.81,  99.90,   1.74,   0.33,  (max)
10/11 23Z,  -0.40,  -0.09,  99.90,  -0.15,   0.34,
10/12 00Z,  -0.40,  -3.81,  99.90,  -3.87,   0.34,
10/12 01Z,  -0.40,  -8.49,  99.90,  -8.54,   0.35,
10/12 02Z,  -0.40, -12.99,  99.90, -13.04,   0.35,
10/12 03Z,  -0.50, -16.17,  99.90, -16.31,   0.36,
10/12 04Z,  -0.50, -17.28,  99.90, -17.41,   0.37,  (min)
10/12 05Z,  -0.50, -16.12,  99.90, -16.25,   0.37,
10/12 06Z,  -0.50, -13.10,  99.90, -13.22,   0.38,
10/12 07Z,  -0.50,  -9.03,  99.90,  -9.15,   0.38,
10/12 08Z,  -0.40,  -4.90,  99.90,  -4.93,   0.38,
10/12 09Z,  -0.40,  -1.67,  99.90,  -1.69,   0.38,
10/12 10Z,  -0.40,  -0.07,  99.90,  -0.09,   0.38,  (max)
10/12 11Z,  -0.40,  -0.46,  99.90,  -0.48,   0.38,
10/12 12Z,  -0.30,  -2.73,  99.90,  -2.65,   0.38,
10/12 13Z,  -0.30,  -6.24,  99.90,  -6.16,   0.38,
10/12 14Z,  -0.30,  -9.96,  99.90,  -9.89,   0.38,
10/12 15Z,  -0.30, -12.79,  99.90, -12.71,   0.38,
10/12 16Z,  -0.30, -13.86,  99.90, -13.78,   0.38,  (min)
10/12 17Z,  -0.30, -12.86,  99.90, -12.79,   0.38,
10/12 18Z,  -0.40, -10.10,  99.90, -10.12,   0.38,
10/12 19Z,  -0.40,  -6.32,  99.90,  -6.34,   0.38,
10/12 20Z,  -0.40,  -2.50,  99.90,  -2.52,   0.38,
10/12 21Z,  -0.30,   0.41,  99.90,   0.48,   0.38,
10/12 22Z,  -0.20,   1.66,  99.90,   1.84,   0.38,  (max)
10/12 23Z,  -0.10,   0.89,  99.90,   1.17,   0.38,
10/13 00Z,   0.00,  -1.85,  99.90,  -1.47,   0.38,
10/13 01Z,   0.00,  -5.97,  99.90,  -5.60,   0.38,
10/13 02Z,  -0.10, -10.53,  99.90, -10.25,   0.38,
10/13 03Z,  -0.10, -14.40,  99.90, -14.12,   0.38,
10/13 04Z,  -0.20, -16.63,  99.90, -16.45,   0.38,
10/13 05Z,  -0.20, -16.75,  99.90, -16.57,   0.38,  (min)
10/13 06Z,  -0.30, -14.85,  99.90, -14.77,   0.38,
10/13 07Z,  -0.30, -11.49,  99.90, -11.41,   0.38,
10/13 08Z,  -0.30,  -7.53,  99.90,  -7.45,   0.38,
10/13 09Z,  -0.30,  -3.91,  99.90,  -3.84,   0.38,
10/13 10Z,  -0.20,  -1.44,  99.90,  -1.26,   0.38,
10/13 11Z,  -0.20,  -0.65,  99.90,  -0.47,   0.38,  (max)
10/13 12Z,  -0.20,  -1.70,  99.90,  -1.52,   0.38,
10/13 13Z,  -0.10,  -4.27,  99.90,  -3.99,   0.38,
10/13 14Z,  -0.10,  -7.59,  99.90,  -7.31,   0.38,
10/13 15Z,  -0.10, -10.65,  99.90, -10.38,   0.38,
10/13 16Z,  -0.20, -12.52,  99.90, -12.34,   0.38,
10/13 17Z,  -0.20, -12.62,  99.90, -12.44,   0.38,  (min)
10/13 18Z,  -0.20, -10.92,  99.90, -10.74,   0.38,
10/13 19Z,  -0.30,  -7.90,  99.90,  -7.82,   0.38,
10/13 20Z,  -0.30,  -4.37,  99.90,  -4.29,   0.38,
10/13 21Z,  -0.20,  -1.23,  99.90,  -1.05,   0.38,
10/13 22Z,  -0.20,   0.72,  99.90,   0.90,   0.38,
10/13 23Z,  -0.10,   0.97,  99.90,   1.24,   0.38,  (max)
10/14 00Z,   0.00,  -0.67,  99.90,  -0.29,   0.38,
10/14 01Z,   0.00,  -3.90,  99.90,  -3.52,   0.38,
10/14 02Z,   0.10,  -8.01,  99.90,  -7.53,   0.38,
10/14 03Z,   0.10, -12.04,  99.90, -11.56,   0.38,
10/14 04Z,   0.10, -15.01,  99.90, -14.53,   0.38,
10/14 05Z,   0.00, -16.24,  99.90, -15.87,   0.38,  (min)
10/14 06Z,   0.00, -15.55,  99.90, -15.17,   0.38,
10/14 07Z,   0.00, -13.20,  99.90, -12.82,   0.38,
10/14 08Z,  -0.10,  -9.87,  99.90,  -9.59,   0.38,
10/14 09Z,   0.00,  -6.35,  99.90,  -5.97,   0.38,
10/14 10Z,   0.00,  -3.44,  99.90,  -3.06,   0.38,
10/14 11Z,   0.00,  -1.77,  99.90,  -1.39,   0.38,
10/14 12Z,   0.00,  -1.69,  99.90,  -1.31,   0.38,  (max)
10/14 13Z,   0.00,  -3.16,  99.90,  -2.78,   0.38,
10/14 14Z,   0.00,  -5.69,  99.90,  -5.32,   0.38,
10/14 15Z,   0.00,  -8.52,  99.90,  -8.14,   0.38,
10/14 16Z,  -0.10, -10.75,  99.90, -10.47,   0.38,
10/14 17Z,  -0.20, -11.69,  99.90, -11.51,   0.38,  (min)
10/14 18Z,  -0.30, -11.03,  99.90, -10.95,   0.38,
10/14 19Z,  -0.40,  -8.97,  99.90,  -8.99,   0.38,
10/14 20Z,  -0.40,  -6.07,  99.90,  -6.09,   0.38,
10/14 21Z,  -0.40,  -3.08,  99.90,  -3.10,   0.38,
10/14 22Z,  -0.40,  -0.77,  99.90,  -0.79,   0.38,
10/14 23Z,  -0.30,   0.25,  99.90,   0.33,   0.38,  (max)
10/15 00Z,  -0.30,  -0.34,  99.90,  -0.26,   0.38,
10/15 01Z,  -0.30,  -2.51,  99.90,  -2.43,   0.38,
10/15 02Z,  -0.30,  -5.82,  99.90,  -5.74,   0.38,
10/15 03Z,  -0.30,  -9.53,  99.90,  -9.46,   0.38,
10/15 04Z,  -0.40, -12.78,  99.90, -12.80,   0.38,
10/15 05Z,  -0.50, -14.81,  99.90, -14.93,   0.38,
10/15 06Z,  -0.50, -15.21,  99.90, -15.33,   0.38,  (min)
10/15 07Z,  -0.50, -14.01,  99.90, -14.13,   0.38,
10/15 08Z,  -0.50, -11.60,  99.90, -11.72,   0.38,
10/15 09Z,  -0.40,  -8.60,  99.90,  -8.62,   0.38,
10/15 10Z,  -0.40,  -5.70,  99.90,  -5.72,   0.38,
10/15 11Z,  -0.20,  -3.55,  99.90,  -3.37,   0.38,
10/15 12Z,  -0.10,  -2.58,  99.90,  -2.30,   0.38,