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 : 07/16/2026 21:23:34 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/15 06Z,  -0.40,  -7.51,  -7.56,  99.90,   0.35,
07/15 07Z,  -0.40,  -3.52,  -3.52,  99.90,   0.40,
07/15 08Z,  -0.50,   0.04,   0.06,  99.90,   0.52,
07/15 09Z,  -0.50,   2.28,   2.32,  99.90,   0.54,
07/15 10Z,  -0.50,   2.51,   2.45,  99.90,   0.44,  (max)
07/15 11Z,  -0.40,   0.48,   0.40,  99.90,   0.32,
07/15 12Z,  -0.40,  -3.56,  -3.67,  99.90,   0.29,
07/15 13Z,  -0.40,  -8.79,  -8.91,  99.90,   0.28,
07/15 14Z,  -0.50, -14.00, -14.06,  99.90,   0.44,
07/15 15Z,  -0.50, -17.92, -17.90,  99.90,   0.52,
07/15 16Z,  -0.50, -19.65, -19.56,  99.90,   0.59,  (min)
07/15 17Z,  -0.40, -18.85, -18.75,  99.90,   0.50,
07/15 18Z,  -0.40, -15.87, -15.89,  99.90,   0.38,
07/15 19Z,  -0.40, -11.49, -11.64,  99.90,   0.25,
07/15 20Z,  -0.40,  -6.78,  -7.04,  99.90,   0.14,
07/15 21Z,  -0.40,  -2.77,  -3.00,  99.90,   0.17,
07/15 22Z,  -0.40,  -0.36,  -0.50,  99.90,   0.26,
07/15 23Z,  -0.40,  -0.06,  -0.01,  99.90,   0.45,  (max)
07/16 00Z,  -0.30,  -1.86,  -1.72,  99.90,   0.44,
07/16 01Z,  -0.40,  -5.22,  -5.00,  99.90,   0.62,
07/16 02Z,  -0.40,  -9.10,  -8.94,  99.90,   0.56,
07/16 03Z,  -0.40, -12.32, -12.34,  99.90,   0.38,
07/16 04Z,  -0.40, -13.91, -14.05,  99.90,   0.26,  (min)
07/16 05Z,  -0.40, -13.43, -13.55,  99.90,   0.28,
07/16 06Z,  -0.40, -11.01, -11.03,  99.90,   0.38,
07/16 07Z,  -0.50,  -7.30,  -7.18,  99.90,   0.62,
07/16 08Z,  -0.50,  -3.20,  -3.02,  99.90,   0.68,
07/16 09Z,  -0.50,   0.28,   0.36,  99.90,   0.58,
07/16 10Z,  -0.50,   2.25,   2.20,  99.90,   0.45,  (max)
07/16 11Z,  -0.50,   2.09,   1.92,  99.90,   0.33,
07/16 12Z,  -0.50,  -0.38,  -0.57,  99.90,   0.31,
07/16 13Z,  -0.50,  -4.74,  -4.85,  99.90,   0.39,
07/16 14Z,  -0.50, -10.04,  -9.99,  99.90,   0.55,
07/16 15Z,  -0.50, -14.98, -14.79,  99.90,   0.69,
07/16 16Z,  -0.50, -18.36, -18.16,  99.90,   0.70,
07/16 17Z,  -0.50, -19.40, -19.17,  99.90,   0.73,  (min)
07/16 18Z,  -0.50, -17.95, -17.91,  99.90,   0.54,
07/16 19Z,  -0.50, -14.50, -14.62,  99.90,   0.38,
07/16 20Z,  -0.50,  -9.91, -10.11,  99.90,   0.30,
07/16 21Z,  -0.40,  -5.26,  -5.45,  99.90,   0.21,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 22Z,  -0.40,  -1.60,  99.90,  -1.77,   0.23,
07/16 23Z,  -0.40,   0.27,  99.90,   0.11,   0.24,  (max)
07/17 00Z,  -0.30,  -0.06,  99.90,  -0.11,   0.25,
07/17 01Z,  -0.30,  -2.45,  99.90,  -2.49,   0.27,
07/17 02Z,  -0.30,  -6.17,  99.90,  -6.19,   0.28,
07/17 03Z,  -0.40, -10.11,  99.90, -10.22,   0.29,
07/17 04Z,  -0.40, -13.12,  99.90, -13.21,   0.30,
07/17 05Z,  -0.40, -14.34,  99.90, -14.43,   0.32,  (min)
07/17 06Z,  -0.40, -13.49,  99.90, -13.55,   0.33,
07/17 07Z,  -0.40, -10.81,  99.90, -10.87,   0.34,
07/17 08Z,  -0.40,  -7.03,  99.90,  -7.07,   0.36,
07/17 09Z,  -0.40,  -3.06,  99.90,  -3.09,   0.37,
07/17 10Z,  -0.40,   0.11,  99.90,   0.08,   0.37,
07/17 11Z,  -0.30,   1.65,  99.90,   1.72,   0.37,  (max)
07/17 12Z,  -0.40,   1.03,  99.90,   1.00,   0.37,
07/17 13Z,  -0.40,  -1.77,  99.90,  -1.80,   0.37,
07/17 14Z,  -0.30,  -6.20,  99.90,  -6.13,   0.37,
07/17 15Z,  -0.30, -11.21,  99.90, -11.14,   0.37,
07/17 16Z,  -0.30, -15.54,  99.90, -15.47,   0.37,
07/17 17Z,  -0.30, -18.13,  99.90, -18.06,   0.37,
07/17 18Z,  -0.30, -18.41,  99.90, -18.34,   0.37,  (min)
07/17 19Z,  -0.30, -16.39,  99.90, -16.32,   0.37,
07/17 20Z,  -0.30, -12.66,  99.90, -12.59,   0.37,
07/17 21Z,  -0.30,  -8.12,  99.90,  -8.05,   0.37,
07/17 22Z,  -0.30,  -3.82,  99.90,  -3.75,   0.37,
07/17 23Z,  -0.20,  -0.74,  99.90,  -0.57,   0.37,
07/18 00Z,  -0.10,   0.43,  99.90,   0.70,   0.37,  (max)
07/18 01Z,  -0.10,  -0.55,  99.90,  -0.28,   0.37,
07/18 02Z,   0.00,  -3.37,  99.90,  -3.00,   0.37,
07/18 03Z,  -0.10,  -7.21,  99.90,  -6.94,   0.37,
07/18 04Z,  -0.10, -10.95,  99.90, -10.68,   0.37,
07/18 05Z,  -0.10, -13.57,  99.90, -13.30,   0.37,
07/18 06Z,  -0.20, -14.37,  99.90, -14.20,   0.37,  (min)
07/18 07Z,  -0.20, -13.22,  99.90, -13.05,   0.37,
07/18 08Z,  -0.30, -10.47,  99.90, -10.40,   0.37,
07/18 09Z,  -0.30,  -6.83,  99.90,  -6.76,   0.37,
07/18 10Z,  -0.30,  -3.22,  99.90,  -3.15,   0.37,
07/18 11Z,  -0.30,  -0.54,  99.90,  -0.47,   0.37,
07/18 12Z,  -0.20,   0.49,  99.90,   0.66,   0.37,  (max)
07/18 13Z,  -0.20,  -0.53,  99.90,  -0.36,   0.37,
07/18 14Z,  -0.20,  -3.45,  99.90,  -3.28,   0.37,
07/18 15Z,  -0.30,  -7.63,  99.90,  -7.55,   0.37,
07/18 16Z,  -0.30, -12.01,  99.90, -11.94,   0.37,
07/18 17Z,  -0.30, -15.49,  99.90, -15.42,   0.37,
07/18 18Z,  -0.40, -17.21,  99.90, -17.24,   0.37,  (min)
07/18 19Z,  -0.40, -16.78,  99.90, -16.81,   0.37,
07/18 20Z,  -0.50, -14.37,  99.90, -14.50,   0.37,
07/18 21Z,  -0.50, -10.62,  99.90, -10.74,   0.37,
07/18 22Z,  -0.40,  -6.40,  99.90,  -6.43,   0.37,
07/18 23Z,  -0.40,  -2.70,  99.90,  -2.73,   0.37,
07/19 00Z,  -0.40,  -0.36,  99.90,  -0.39,   0.37,
07/19 01Z,  -0.40,   0.09,  99.90,   0.06,   0.37,  (max)
07/19 02Z,  -0.40,  -1.42,  99.90,  -1.44,   0.37,
07/19 03Z,  -0.40,  -4.44,  99.90,  -4.47,   0.37,
07/19 04Z,  -0.50,  -8.13,  99.90,  -8.25,   0.37,
07/19 05Z,  -0.50, -11.48,  99.90, -11.61,   0.37,
07/19 06Z,  -0.60, -13.62,  99.90, -13.85,   0.37,
07/19 07Z,  -0.60, -14.06,  99.90, -14.29,   0.37,  (min)
07/19 08Z,  -0.70, -12.76,  99.90, -13.09,   0.37,
07/19 09Z,  -0.70, -10.13,  99.90, -10.46,   0.37,
07/19 10Z,  -0.70,  -6.85,  99.90,  -7.18,   0.37,
07/19 11Z,  -0.70,  -3.75,  99.90,  -4.08,   0.37,
07/19 12Z,  -0.60,  -1.63,  99.90,  -1.86,   0.37,
07/19 13Z,  -0.60,  -1.08,  99.90,  -1.31,   0.37,  (max)
07/19 14Z,  -0.60,  -2.30,  99.90,  -2.53,   0.37,
07/19 15Z,  -0.60,  -5.07,  99.90,  -5.30,   0.37,
07/19 16Z,  -0.60,  -8.69,  99.90,  -8.92,   0.37,
07/19 17Z,  -0.60, -12.24,  99.90, -12.47,   0.37,
07/19 18Z,  -0.70, -14.79,  99.90, -15.12,   0.37,
07/19 19Z,  -0.70, -15.69,  99.90, -16.02,   0.37,  (min)
07/19 20Z,  -0.80, -14.74,  99.90, -15.17,   0.37,
07/19 21Z,  -0.80, -12.20,  99.90, -12.63,   0.37,
07/19 22Z,  -0.70,  -8.68,  99.90,  -9.01,   0.37,
07/19 23Z,  -0.70,  -5.02,  99.90,  -5.35,   0.37,
07/20 00Z,  -0.60,  -2.06,  99.90,  -2.29,   0.37,
07/20 01Z,  -0.50,  -0.48,  99.90,  -0.61,   0.37,  (max)
07/20 02Z,  -0.50,  -0.63,  99.90,  -0.76,   0.37,
07/20 03Z,  -0.50,  -2.44,  99.90,  -2.57,   0.37,
07/20 04Z,  -0.50,  -5.42,  99.90,  -5.54,   0.37,
07/20 05Z,  -0.60,  -8.76,  99.90,  -8.99,   0.37,
07/20 06Z,  -0.60, -11.64,  99.90, -11.87,   0.37,
07/20 07Z,  -0.70, -13.35,  99.90, -13.68,   0.37,
07/20 08Z,  -0.80, -13.55,  99.90, -13.98,   0.37,  (min)
07/20 09Z,  -0.80, -12.29,  99.90, -12.72,   0.37,
07/20 10Z,  -0.80,  -9.95,  99.90, -10.38,   0.37,
07/20 11Z,  -0.70,  -7.16,  99.90,  -7.49,   0.37,
07/20 12Z,  -0.60,  -4.63,  99.90,  -4.86,   0.37,
07/20 13Z,  99.90,  -3.02,  99.90,  99.90,   0.37,
07/20 14Z,  99.90,  -2.76,  99.90,  99.90,   0.37,
07/20 15Z,  99.90,  -3.95,  99.90,  99.90,   0.37,
07/20 16Z,  99.90,  -6.30,  99.90,  99.90,   0.37,
07/20 17Z,  99.90,  -9.19,  99.90,  99.90,   0.37,
07/20 18Z,  99.90, -11.85,  99.90,  99.90,   0.37,