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 : 07/11/2025 15:22:56 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/10 00Z,  -0.20,  -6.78,  -6.86,  99.90,   0.12,
07/10 01Z,  -0.20,  -9.03,  -9.17,  99.90,   0.06,
07/10 02Z,  -0.20, -10.56, -10.76,  99.90,  -0.00,
07/10 03Z,  -0.20, -10.82, -11.04,  99.90,  -0.02,  (min)
07/10 04Z,  -0.10,  -9.69,  -9.87,  99.90,  -0.08,
07/10 05Z,  -0.10,  -7.44,  -7.51,  99.90,   0.03,
07/10 06Z,  -0.30,  -4.65,  -4.68,  99.90,   0.27,
07/10 07Z,  -0.30,  -2.07,  -2.00,  99.90,   0.37,
07/10 08Z,  -0.30,  -0.36,  -0.29,  99.90,   0.37,
07/10 09Z,  -0.30,  -0.04,  -0.09,  99.90,   0.25,  (max)
07/10 10Z,  -0.20,  -1.34,  -1.50,  99.90,   0.04,
07/10 11Z,  -0.20,  -4.12,  -4.44,  99.90,  -0.12,
07/10 12Z,  -0.30,  -7.86,  -8.25,  99.90,  -0.09,
07/10 13Z,  -0.30, -11.76, -12.10,  99.90,  -0.04,
07/10 14Z,  -0.20, -14.93, -15.11,  99.90,   0.02,
07/10 15Z,  -0.20, -16.63, -16.70,  99.90,   0.13,  (min)
07/10 16Z,  -0.20, -16.55, -16.50,  99.90,   0.25,
07/10 17Z,  -0.10, -14.79, -14.71,  99.90,   0.18,
07/10 18Z,  -0.30, -11.83, -11.82,  99.90,   0.31,
07/10 19Z,  -0.30,  -8.40,  -8.38,  99.90,   0.32,
07/10 20Z,  -0.20,  -5.25,  -5.23,  99.90,   0.22,
07/10 21Z,  -0.20,  -3.06,  -2.95,  99.90,   0.31,
07/10 22Z,  -0.10,  -2.29,  -2.22,  99.90,   0.17,  (max)
07/10 23Z,   0.00,  -3.07,  -3.03,  99.90,   0.04,
07/11 00Z,  -0.10,  -5.11,  -5.01,  99.90,   0.20,
07/11 01Z,   0.00,  -7.74,  -7.68,  99.90,   0.06,
07/11 02Z,   0.00, -10.08, -10.14,  99.90,  -0.06,
07/11 03Z,   0.00, -11.36, -11.37,  99.90,  -0.01,  (min)
07/11 04Z,   0.10, -11.13, -10.97,  99.90,   0.06,
07/11 05Z,   0.10,  -9.42,  -9.08,  99.90,   0.24,
07/11 06Z,   0.00,  -6.68,  -6.12,  99.90,   0.56,
07/11 07Z,   0.00,  -3.64,  -3.03,  99.90,   0.61,
07/11 08Z,   0.00,  -1.06,  -0.37,  99.90,   0.69,
07/11 09Z,   0.00,   0.35,   0.94,  99.90,   0.59,  (max)
07/11 10Z,   0.00,   0.13,   0.59,  99.90,   0.46,
07/11 11Z,   0.00,  -1.85,  -1.57,  99.90,   0.28,
07/11 12Z,   0.00,  -5.29,  -5.07,  99.90,   0.22,
07/11 13Z,   0.00,  -9.48,  -9.23,  99.90,   0.25,
07/11 14Z,   0.00, -13.47, -13.08,  99.90,   0.39,
07/11 15Z,   0.00, -16.31, -15.75,  99.90,   0.56,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/11 16Z,  -0.10, -17.37,  99.90, -16.94,   0.54,  (min)
07/11 17Z,  -0.20, -16.51,  99.90, -16.20,   0.52,
07/11 18Z,  -0.20, -14.03,  99.90, -13.73,   0.49,
07/11 19Z,  -0.20, -10.57,  99.90, -10.29,   0.47,
07/11 20Z,  -0.30,  -6.92,  99.90,  -6.77,   0.45,
07/11 21Z,  -0.30,  -3.88,  99.90,  -3.75,   0.43,
07/11 22Z,  -0.30,  -2.11,  99.90,  -1.99,   0.41,
07/11 23Z,  -0.20,  -1.97,  99.90,  -1.78,   0.39,  (max)
07/12 00Z,  -0.20,  -3.45,  99.90,  -3.27,   0.37,
07/12 01Z,  -0.20,  -6.05,  99.90,  -5.90,   0.35,
07/12 02Z,  -0.20,  -8.94,  99.90,  -8.81,   0.33,
07/12 03Z,  -0.20, -11.16,  99.90, -11.06,   0.31,
07/12 04Z,  -0.20, -12.01,  99.90, -11.90,   0.31,  (min)
07/12 05Z,  -0.30, -11.18,  99.90, -11.17,   0.31,
07/12 06Z,  -0.30,  -8.90,  99.90,  -8.89,   0.31,
07/12 07Z,  -0.40,  -5.78,  99.90,  -5.87,   0.31,
07/12 08Z,  -0.50,  -2.62,  99.90,  -2.81,   0.31,
07/12 09Z,  -0.50,  -0.23,  99.90,  -0.42,   0.31,
07/12 10Z,  -0.50,   0.71,  99.90,   0.52,   0.31,  (max)
07/12 11Z,  -0.50,  -0.17,  99.90,  -0.36,   0.31,
07/12 12Z,  -0.40,  -2.86,  99.90,  -2.95,   0.31,
07/12 13Z,  -0.30,  -6.85,  99.90,  -6.84,   0.31,
07/12 14Z,  -0.30, -11.25,  99.90, -11.24,   0.31,
07/12 15Z,  -0.30, -15.03,  99.90, -15.02,   0.31,
07/12 16Z,  -0.20, -17.29,  99.90, -17.18,   0.31,
07/12 17Z,  -0.20, -17.55,  99.90, -17.44,   0.31,  (min)
07/12 18Z,  -0.20, -15.88,  99.90, -15.77,   0.31,
07/12 19Z,  -0.20, -12.77,  99.90, -12.66,   0.31,
07/12 20Z,  -0.20,  -8.97,  99.90,  -8.86,   0.31,
07/12 21Z,  -0.20,  -5.32,  99.90,  -5.21,   0.31,
07/12 22Z,  -0.20,  -2.62,  99.90,  -2.51,   0.31,
07/12 23Z,  -0.10,  -1.45,  99.90,  -1.24,   0.31,  (max)
07/13 00Z,   0.00,  -2.05,  99.90,  -1.74,   0.31,
07/13 01Z,   0.00,  -4.21,  99.90,  -3.90,   0.31,
07/13 02Z,   0.00,  -7.24,  99.90,  -6.93,   0.31,
07/13 03Z,   0.00, -10.18,  99.90,  -9.87,   0.31,
07/13 04Z,   0.00, -12.10,  99.90, -11.79,   0.31,
07/13 05Z,  -0.10, -12.39,  99.90, -12.18,   0.31,  (min)
07/13 06Z,  -0.20, -10.97,  99.90, -10.87,   0.31,
07/13 07Z,  -0.30,  -8.23,  99.90,  -8.22,   0.31,
07/13 08Z,  -0.30,  -4.89,  99.90,  -4.89,   0.31,
07/13 09Z,  -0.30,  -1.81,  99.90,  -1.80,   0.31,
07/13 10Z,  -0.30,   0.22,  99.90,   0.22,   0.31,
07/13 11Z,  -0.30,   0.57,  99.90,   0.58,   0.31,  (max)
07/13 12Z,  -0.30,  -0.99,  99.90,  -0.98,   0.31,
07/13 13Z,  -0.20,  -4.27,  99.90,  -4.16,   0.31,
07/13 14Z,  -0.20,  -8.57,  99.90,  -8.46,   0.31,
07/13 15Z,  -0.30, -12.88,  99.90, -12.88,   0.31,
07/13 16Z,  -0.30, -16.16,  99.90, -16.15,   0.31,
07/13 17Z,  -0.40, -17.64,  99.90, -17.73,   0.31,  (min)
07/13 18Z,  -0.40, -17.06,  99.90, -17.15,   0.31,
07/13 19Z,  -0.50, -14.67,  99.90, -14.86,   0.31,
07/13 20Z,  -0.50, -11.10,  99.90, -11.29,   0.31,
07/13 21Z,  -0.50,  -7.18,  99.90,  -7.37,   0.31,
07/13 22Z,  -0.50,  -3.77,  99.90,  -3.96,   0.31,
07/13 23Z,  -0.40,  -1.61,  99.90,  -1.70,   0.31,
07/14 00Z,  -0.30,  -1.16,  99.90,  -1.15,   0.31,  (max)
07/14 01Z,  -0.30,  -2.51,  99.90,  -2.50,   0.31,
07/14 02Z,  -0.30,  -5.22,  99.90,  -5.21,   0.31,
07/14 03Z,  -0.30,  -8.48,  99.90,  -8.47,   0.31,
07/14 04Z,  -0.40, -11.28,  99.90, -11.37,   0.31,
07/14 05Z,  -0.50, -12.77,  99.90, -12.97,   0.31,  (min)
07/14 06Z,  -0.60, -12.53,  99.90, -12.82,   0.31,
07/14 07Z,  -0.70, -10.63,  99.90, -11.02,   0.31,
07/14 08Z,  -0.70,  -7.61,  99.90,  -8.00,   0.31,
07/14 09Z,  -0.70,  -4.25,  99.90,  -4.64,   0.31,
07/14 10Z,  -0.70,  -1.41,  99.90,  -1.80,   0.31,
07/14 11Z,  -0.70,   0.14,  99.90,  -0.25,   0.31,  (max)
07/14 12Z,  -0.70,  -0.10,  99.90,  -0.49,   0.31,
07/14 13Z,  -0.60,  -2.23,  99.90,  -2.52,   0.31,
07/14 14Z,  -0.60,  -5.85,  99.90,  -6.14,   0.31,
07/14 15Z,  -0.70, -10.15,  99.90, -10.54,   0.31,
07/14 16Z,  -0.70, -14.06,  99.90, -14.45,   0.31,
07/14 17Z,  -0.80, -16.63,  99.90, -17.12,   0.31,
07/14 18Z,  -0.90, -17.27,  99.90, -17.86,   0.31,  (min)
07/14 19Z,  -0.90, -15.92,  99.90, -16.51,   0.31,
07/14 20Z,  -1.00, -12.99,  99.90, -13.68,   0.31,
07/14 21Z,  -0.90,  -9.21,  99.90,  -9.80,   0.31,
07/14 22Z,  -0.90,  -5.42,  99.90,  -6.01,   0.31,
07/14 23Z,  -0.80,  -2.46,  99.90,  -2.95,   0.31,
07/15 00Z,  -0.70,  -0.95,  99.90,  -1.35,   0.31,  (max)
07/15 01Z,  -0.70,  -1.24,  99.90,  -1.63,   0.31,
07/15 02Z,  -0.60,  -3.21,  99.90,  -3.50,   0.31,
07/15 03Z,  -0.70,  -6.29,  99.90,  -6.68,   0.31,
07/15 04Z,  -0.70,  -9.58,  99.90,  -9.97,   0.31,
07/15 05Z,  -0.80, -12.12,  99.90, -12.61,   0.31,
07/15 06Z,  -0.90, -13.18,  99.90, -13.77,   0.31,
07/15 07Z,  99.90, -12.51,  99.90,  99.90,   0.31,
07/15 08Z,  99.90, -10.32,  99.90,  99.90,   0.31,
07/15 09Z,  99.90,  -7.22,  99.90,  99.90,   0.31,
07/15 10Z,  99.90,  -4.02,  99.90,  99.90,   0.31,
07/15 11Z,  99.90,  -1.55,  99.90,  99.90,   0.31,
07/15 12Z,  99.90,  -0.48,  99.90,  99.90,   0.31,