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 : 08/14/2026 20:23:33 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/13 00Z,  -0.70,  -9.79,  -9.81,  99.90,   0.68,
08/13 01Z,  -0.60, -13.74, -13.79,  99.90,   0.55,
08/13 02Z,  -0.60, -17.02, -17.24,  99.90,   0.38,
08/13 03Z,  -0.60, -18.68, -19.10,  99.90,   0.18,  (min)
08/13 04Z,  -0.60, -18.24, -18.69,  99.90,   0.15,
08/13 05Z,  -0.60, -15.82, -16.20,  99.90,   0.22,
08/13 06Z,  -0.70, -12.05, -12.28,  99.90,   0.47,
08/13 07Z,  -0.70,  -7.86,  -8.08,  99.90,   0.48,
08/13 08Z,  -0.70,  -4.28,  -4.48,  99.90,   0.50,
08/13 09Z,  -0.70,  -2.22,  -2.46,  99.90,   0.46,  (max)
08/13 10Z,  -0.70,  -2.31,  -2.62,  99.90,   0.39,
08/13 11Z,  -0.70,  -4.72,  -5.02,  99.90,   0.40,
08/13 12Z,  -0.70,  -9.03,  -9.27,  99.90,   0.46,
08/13 13Z,  -0.70, -14.26, -14.50,  99.90,   0.46,
08/13 14Z,  -0.70, -19.13, -19.32,  99.90,   0.51,
08/13 15Z,  -0.70, -22.40, -22.59,  99.90,   0.51,
08/13 16Z,  -0.70, -23.30, -23.49,  99.90,   0.51,  (min)
08/13 17Z,  -0.70, -21.68, -21.93,  99.90,   0.45,
08/13 18Z,  -0.70, -18.07, -18.36,  99.90,   0.41,
08/13 19Z,  -0.70, -13.37, -13.71,  99.90,   0.36,
08/13 20Z,  -0.60,  -8.73,  -9.02,  99.90,   0.31,
08/13 21Z,  -0.60,  -5.18,  -5.42,  99.90,   0.36,
08/13 22Z,  -0.60,  -3.54,  -3.65,  99.90,   0.49,  (max)
08/13 23Z,  -0.50,  -4.20,  -4.19,  99.90,   0.51,
08/14 00Z,  -0.40,  -6.94,  -6.85,  99.90,   0.49,
08/14 01Z,  -0.40, -11.02, -10.90,  99.90,   0.52,
08/14 02Z,  -0.40, -15.25, -15.25,  99.90,   0.40,
08/14 03Z,  -0.30, -18.43, -18.55,  99.90,   0.18,
08/14 04Z,  -0.30, -19.66, -19.93,  99.90,   0.03,  (min)
08/14 05Z,  -0.30, -18.64, -18.88,  99.90,   0.06,
08/14 06Z,  -0.30, -15.67, -15.83,  99.90,   0.14,
08/14 07Z,  -0.30, -11.53, -11.57,  99.90,   0.26,
08/14 08Z,  -0.30,  -7.24,  -7.29,  99.90,   0.25,
08/14 09Z,  -0.30,  -3.85,  -3.91,  99.90,   0.24,
08/14 10Z,  -0.20,  -2.24,  -2.38,  99.90,   0.06,  (max)
08/14 11Z,  -0.20,  -2.92,  -3.02,  99.90,   0.10,
08/14 12Z,  -0.30,  -5.90,  -5.97,  99.90,   0.23,
08/14 13Z,  -0.30, -10.55, -10.58,  99.90,   0.27,
08/14 14Z,  -0.30, -15.74, -15.76,  99.90,   0.28,
08/14 15Z,  -0.30, -20.13, -20.19,  99.90,   0.24,
08/14 16Z,  -0.20, -22.61, -22.66,  99.90,   0.15,  (min)
08/14 17Z,  -0.20, -22.59, -22.61,  99.90,   0.18,
08/14 18Z,  -0.20, -20.17, -20.24,  99.90,   0.13,
08/14 19Z,  -0.20, -16.04, -16.02,  99.90,   0.22,
08/14 20Z,  -0.20, -11.22, -11.17,  99.90,   0.25,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
08/14 21Z,  -0.10,  -6.85,  99.90,  -6.70,   0.26,
08/14 22Z,  -0.10,  -3.93,  99.90,  -3.78,   0.26,
08/14 23Z,  -0.10,  -3.15,  99.90,  -2.99,   0.26,  (max)
08/15 00Z,  -0.10,  -4.68,  99.90,  -4.52,   0.26,
08/15 01Z,   0.00,  -8.13,  99.90,  -7.87,   0.26,
08/15 02Z,   0.00, -12.55,  99.90, -12.28,   0.27,
08/15 03Z,   0.00, -16.70,  99.90, -16.43,   0.27,
08/15 04Z,   0.00, -19.43,  99.90, -19.16,   0.27,
08/15 05Z,  -0.10, -20.04,  99.90, -19.87,   0.27,  (min)
08/15 06Z,  -0.10, -18.43,  99.90, -18.26,   0.28,
08/15 07Z,  -0.20, -15.08,  99.90, -15.00,   0.28,
08/15 08Z,  -0.20, -10.86,  99.90, -10.78,   0.28,
08/15 09Z,  -0.20,  -6.79,  99.90,  -6.71,   0.28,
08/15 10Z,  -0.20,  -3.89,  99.90,  -3.81,   0.28,
08/15 11Z,  -0.20,  -2.91,  99.90,  -2.83,   0.28,  (max)
08/15 12Z,  -0.20,  -4.21,  99.90,  -4.13,   0.28,
08/15 13Z,  -0.20,  -7.59,  99.90,  -7.51,   0.28,
08/15 14Z,  -0.20, -12.23,  99.90, -12.15,   0.28,
08/15 15Z,  -0.20, -16.95,  99.90, -16.87,   0.28,
08/15 16Z,  -0.20, -20.50,  99.90, -20.42,   0.28,
08/15 17Z,  -0.20, -21.96,  99.90, -21.88,   0.28,  (min)
08/15 18Z,  -0.20, -21.01,  99.90, -20.93,   0.28,
08/15 19Z,  -0.20, -17.98,  99.90, -17.90,   0.28,
08/15 20Z,  -0.30, -13.67,  99.90, -13.69,   0.28,
08/15 21Z,  -0.30,  -9.11,  99.90,  -9.13,   0.28,
08/15 22Z,  -0.20,  -5.38,  99.90,  -5.30,   0.28,
08/15 23Z,  -0.20,  -3.35,  99.90,  -3.27,   0.28,  (max)
08/16 00Z,  -0.20,  -3.51,  99.90,  -3.43,   0.28,
08/16 01Z,  -0.10,  -5.82,  99.90,  -5.65,   0.28,
08/16 02Z,  -0.10,  -9.69,  99.90,  -9.51,   0.28,
08/16 03Z,  -0.10, -14.07,  99.90, -13.89,   0.28,
08/16 04Z,  -0.10, -17.77,  99.90, -17.59,   0.28,
08/16 05Z,  -0.20, -19.83,  99.90, -19.75,   0.28,
08/16 06Z,  -0.30, -19.78,  99.90, -19.80,   0.28,  (min)
08/16 07Z,  -0.30, -17.72,  99.90, -17.74,   0.28,
08/16 08Z,  -0.40, -14.25,  99.90, -14.37,   0.28,
08/16 09Z,  -0.40, -10.25,  99.90, -10.37,   0.28,
08/16 10Z,  -0.40,  -6.70,  99.90,  -6.82,   0.28,
08/16 11Z,  -0.30,  -4.48,  99.90,  -4.50,   0.28,
08/16 12Z,  -0.30,  -4.19,  99.90,  -4.21,   0.28,  (max)
08/16 13Z,  -0.30,  -5.97,  99.90,  -5.99,   0.28,
08/16 14Z,  -0.30,  -9.43,  99.90,  -9.45,   0.28,
08/16 15Z,  -0.20, -13.68,  99.90, -13.60,   0.28,
08/16 16Z,  -0.20, -17.57,  99.90, -17.49,   0.28,
08/16 17Z,  -0.20, -20.05,  99.90, -19.97,   0.28,
08/16 18Z,  -0.30, -20.49,  99.90, -20.51,   0.28,  (min)
08/16 19Z,  -0.30, -18.81,  99.90, -18.84,   0.28,
08/16 20Z,  -0.40, -15.49,  99.90, -15.61,   0.28,
08/16 21Z,  -0.40, -11.36,  99.90, -11.49,   0.28,
08/16 22Z,  -0.40,  -7.42,  99.90,  -7.54,   0.28,
08/16 23Z,  -0.30,  -4.58,  99.90,  -4.60,   0.28,
08/17 00Z,  -0.30,  -3.54,  99.90,  -3.56,   0.28,  (max)
08/17 01Z,  -0.20,  -4.55,  99.90,  -4.47,   0.28,
08/17 02Z,  -0.20,  -7.37,  99.90,  -7.29,   0.28,
08/17 03Z,  -0.20, -11.28,  99.90, -11.20,   0.28,
08/17 04Z,  -0.20, -15.24,  99.90, -15.16,   0.28,
08/17 05Z,  -0.30, -18.25,  99.90, -18.27,   0.28,
08/17 06Z,  -0.30, -19.58,  99.90, -19.60,   0.28,  (min)
08/17 07Z,  -0.40, -18.99,  99.90, -19.11,   0.28,
08/17 08Z,  -0.40, -16.73,  99.90, -16.85,   0.28,
08/17 09Z,  -0.40, -13.43,  99.90, -13.55,   0.28,
08/17 10Z,  -0.40,  -9.92,  99.90, -10.05,   0.28,
08/17 11Z,  -0.30,  -7.08,  99.90,  -7.10,   0.28,
08/17 12Z,  -0.30,  -5.59,  99.90,  -5.62,   0.28,  (max)
08/17 13Z,  -0.20,  -5.87,  99.90,  -5.79,   0.28,
08/17 14Z,  -0.20,  -7.86,  99.90,  -7.78,   0.28,
08/17 15Z,  -0.20, -11.04,  99.90, -10.96,   0.28,
08/17 16Z,  -0.30, -14.55,  99.90, -14.57,   0.28,
08/17 17Z,  -0.30, -17.42,  99.90, -17.44,   0.28,
08/17 18Z,  -0.40, -18.84,  99.90, -18.96,   0.28,  (min)
08/17 19Z,  -0.40, -18.46,  99.90, -18.58,   0.28,
08/17 20Z,  -0.50, -16.37,  99.90, -16.60,   0.28,
08/17 21Z,  -0.50, -13.13,  99.90, -13.35,   0.28,
08/17 22Z,  -0.40,  -9.53,  99.90,  -9.65,   0.28,
08/17 23Z,  -0.30,  -6.43,  99.90,  -6.45,   0.28,
08/18 00Z,  -0.20,  -4.57,  99.90,  -4.49,   0.28,
08/18 01Z,  -0.20,  -4.41,  99.90,  -4.33,   0.28,  (max)
08/18 02Z,  -0.20,  -6.00,  99.90,  -5.92,   0.28,
08/18 03Z,  -0.20,  -8.96,  99.90,  -8.88,   0.28,
08/18 04Z,  -0.20, -12.54,  99.90, -12.46,   0.28,
08/18 05Z,  -0.30, -15.86,  99.90, -15.88,   0.28,
08/18 06Z,  -0.40, -18.11,  99.90, -18.23,   0.28,
08/18 07Z,  -0.50, -18.82,  99.90, -19.04,   0.28,  (min)
08/18 08Z,  -0.50, -17.93,  99.90, -18.15,   0.28,
08/18 09Z,  -0.50, -15.74,  99.90, -15.96,   0.28,
08/18 10Z,  -0.40, -12.87,  99.90, -12.99,   0.28,
08/18 11Z,  -0.40, -10.03,  99.90, -10.15,   0.28,
08/18 12Z,  -0.30,  -7.91,  99.90,  -7.94,   0.28,