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
#Anchorage, AK : 04/24/2025 17:24:38 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/23 00Z,  -0.30, -11.30, -12.08,  99.90,  -0.48,  (max)
04/23 01Z,  -0.30, -13.67, -14.37,  99.90,  -0.40,
04/23 02Z,  -0.30, -17.48, -18.28,  99.90,  -0.50,
04/23 03Z,  -0.30, -21.73, -22.48,  99.90,  -0.45,
04/23 04Z,  -0.30, -25.37, -26.30,  99.90,  -0.63,
04/23 05Z,  -0.30, -28.30, -29.71,  99.90,  -1.11,
04/23 06Z,  -0.30, -30.31, -31.91,  99.90,  -1.30,  (min)
04/23 07Z,  -0.40, -29.44, -30.35,  99.90,  -0.51,
04/23 08Z,  -0.40, -24.99, -25.02,  99.90,   0.37,
04/23 09Z,  -0.40, -19.58, -19.81,  99.90,   0.17,
04/23 10Z,  -0.40, -15.14, -15.31,  99.90,   0.23,
04/23 11Z,  -0.50, -11.42, -11.64,  99.90,   0.28,
04/23 12Z,  -0.50,  -8.99,  -9.30,  99.90,   0.19,
04/23 13Z,  -0.50,  -9.00,  -8.96,  99.90,   0.54,  (max)
04/23 14Z,  -0.50, -11.34, -11.08,  99.90,   0.76,
04/23 15Z,  -0.50, -15.14, -14.82,  99.90,   0.82,
04/23 16Z,  -0.50, -19.27, -19.19,  99.90,   0.58,
04/23 17Z,  -0.50, -23.00, -23.33,  99.90,   0.17,
04/23 18Z,  -0.50, -26.31, -26.80,  99.90,   0.01,
04/23 19Z,  -0.50, -27.64, -28.89,  99.90,  -0.75,  (min)
04/23 20Z,  -0.50, -25.03, -26.60,  99.90,  -1.07,
04/23 21Z,  -0.60, -19.94, -21.30,  99.90,  -0.76,
04/23 22Z,  -0.60, -15.33, -16.41,  99.90,  -0.48,
04/23 23Z,  -0.60, -11.80, -12.68,  99.90,  -0.28,
04/24 00Z,  -0.60,  -9.44, -10.23,  99.90,  -0.19,
04/24 01Z,  -0.60,  -9.38,  -9.94,  99.90,   0.04,  (max)
04/24 02Z,  -0.60, -11.85, -12.25,  99.90,   0.20,
04/24 03Z,  -0.50, -16.02, -16.18,  99.90,   0.34,
04/24 04Z,  -0.50, -20.75, -20.79,  99.90,   0.46,
04/24 05Z,  -0.40, -25.06, -25.19,  99.90,   0.27,
04/24 06Z,  -0.40, -28.85, -29.16,  99.90,   0.09,
04/24 07Z,  -0.40, -31.36, -32.15,  99.90,  -0.39,  (min)
04/24 08Z,  -0.40, -30.18, -31.16,  99.90,  -0.58,
04/24 09Z,  -0.40, -24.98, -24.67,  99.90,   0.71,
04/24 10Z,  -0.40, -18.76, -18.66,  99.90,   0.50,
04/24 11Z,  -0.40, -13.42, -13.52,  99.90,   0.30,
04/24 12Z,  -0.30,  -9.12,  -9.56,  99.90,  -0.14,
04/24 13Z,  -0.30,  -6.84,  -7.20,  99.90,  -0.06,  (max)
04/24 14Z,  -0.30,  -7.52,  -7.73,  99.90,   0.09,
04/24 15Z,  -0.20, -10.65, -10.86,  99.90,  -0.01,
04/24 16Z,  -0.20, -15.22, -15.55,  99.90,  -0.13,
04/24 17Z,  -0.10, -20.10, -20.34,  99.90,  -0.14,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/24 18Z,  -0.10, -24.78,  99.90, -25.02,  -0.14,
04/24 19Z,  -0.10, -28.93,  99.90, -29.17,  -0.14,
04/24 20Z,  -0.10, -30.32,  99.90, -30.56,  -0.14,  (min)
04/24 21Z,   0.00, -26.98,  99.90, -27.12,  -0.14,
04/24 22Z,   0.00, -20.86,  99.90, -21.00,  -0.15,
04/24 23Z,   0.00, -15.01,  99.90, -15.15,  -0.15,
04/25 00Z,   0.00, -10.26,  99.90, -10.41,  -0.15,
04/25 01Z,   0.00,  -7.30,  99.90,  -7.45,  -0.15,  (max)
04/25 02Z,   0.00,  -7.38,  99.90,  -7.53,  -0.15,
04/25 03Z,   0.00, -10.35,  99.90, -10.50,  -0.15,
04/25 04Z,   0.00, -15.12,  99.90, -15.27,  -0.15,
04/25 05Z,   0.00, -20.43,  99.90, -20.59,  -0.16,
04/25 06Z,   0.00, -25.37,  99.90, -25.52,  -0.16,
04/25 07Z,   0.00, -29.77,  99.90, -29.92,  -0.16,
04/25 08Z,   0.00, -32.28,  99.90, -32.43,  -0.16,  (min)
04/25 09Z,   0.00, -30.20,  99.90, -30.35,  -0.16,
04/25 10Z,   0.00, -23.84,  99.90, -23.99,  -0.16,
04/25 11Z,   0.00, -16.66,  99.90, -16.81,  -0.16,
04/25 12Z,   0.10, -10.63,  99.90, -10.69,  -0.16,
04/25 13Z,   0.00,  -6.28,  99.90,  -6.44,  -0.16,
04/25 14Z,   0.00,  -4.78,  99.90,  -4.94,  -0.16,  (max)
04/25 15Z,   0.00,  -6.59,  99.90,  -6.74,  -0.16,
04/25 16Z,   0.00, -10.76,  99.90, -10.92,  -0.16,
04/25 17Z,   0.00, -16.18,  99.90, -16.34,  -0.16,
04/25 18Z,   0.00, -21.80,  99.90, -21.96,  -0.16,
04/25 19Z,   0.00, -27.26,  99.90, -27.41,  -0.16,
04/25 20Z,   0.00, -31.83,  99.90, -31.99,  -0.16,
04/25 21Z,   0.00, -32.70,  99.90, -32.85,  -0.16,  (min)
04/25 22Z,   0.00, -28.14,  99.90, -28.29,  -0.16,
04/25 23Z,   0.00, -20.74,  99.90, -20.89,  -0.16,
04/26 00Z,   0.00, -13.72,  99.90, -13.87,  -0.16,
04/26 01Z,  -0.10,  -8.17,  99.90,  -8.42,  -0.16,
04/26 02Z,  -0.10,  -5.20,  99.90,  -5.46,  -0.16,  (max)
04/26 03Z,  -0.10,  -5.87,  99.90,  -6.12,  -0.16,
04/26 04Z,  -0.10,  -9.54,  99.90,  -9.80,  -0.16,
04/26 05Z,  -0.10, -14.90,  99.90, -15.15,  -0.16,
04/26 06Z,  -0.10, -20.65,  99.90, -20.91,  -0.16,
04/26 07Z,   0.00, -26.01,  99.90, -26.16,  -0.16,
04/26 08Z,   0.00, -30.64,  99.90, -30.80,  -0.16,
04/26 09Z,   0.00, -32.61,  99.90, -32.76,  -0.16,  (min)
04/26 10Z,   0.00, -29.20,  99.90, -29.35,  -0.16,
04/26 11Z,  -0.10, -21.55,  99.90, -21.80,  -0.16,
04/26 12Z,  -0.10, -13.60,  99.90, -13.85,  -0.16,
04/26 13Z,  -0.10,  -7.37,  99.90,  -7.63,  -0.16,
04/26 14Z,  -0.10,  -3.64,  99.90,  -3.90,  -0.16,
04/26 15Z,  -0.10,  -3.43,  99.90,  -3.69,  -0.16,  (max)
04/26 16Z,  -0.10,  -6.57,  99.90,  -6.83,  -0.16,
04/26 17Z,  -0.10, -11.77,  99.90, -12.02,  -0.16,
04/26 18Z,  -0.20, -17.87,  99.90, -18.23,  -0.16,
04/26 19Z,  -0.20, -24.04,  99.90, -24.39,  -0.16,
04/26 20Z,  -0.20, -29.99,  99.90, -30.35,  -0.16,
04/26 21Z,  -0.30, -34.52,  99.90, -34.98,  -0.16,  (min)
04/26 22Z,  -0.30, -34.34,  99.90, -34.79,  -0.16,
04/26 23Z,  -0.30, -28.28,  99.90, -28.74,  -0.16,
04/27 00Z,  -0.40, -19.68,  99.90, -20.23,  -0.16,
04/27 01Z,  -0.40, -11.87,  99.90, -12.42,  -0.16,
04/27 02Z,  -0.40,  -6.11,  99.90,  -6.67,  -0.16,
04/27 03Z,  -0.40,  -3.67,  99.90,  -4.23,  -0.16,  (max)
04/27 04Z,  -0.50,  -5.15,  99.90,  -5.80,  -0.16,
04/27 05Z,  -0.50,  -9.47,  99.90, -10.12,  -0.16,
04/27 06Z,  -0.50, -15.21,  99.90, -15.86,  -0.16,
04/27 07Z,  -0.50, -21.17,  99.90, -21.83,  -0.16,
04/27 08Z,  -0.50, -26.69,  99.90, -27.35,  -0.16,
04/27 09Z,  -0.50, -31.20,  99.90, -31.86,  -0.16,
04/27 10Z,  -0.50, -32.18,  99.90, -32.83,  -0.16,  (min)
04/27 11Z,  -0.50, -27.21,  99.90, -27.86,  -0.16,
04/27 12Z,  -0.50, -18.44,  99.90, -19.09,  -0.16,
04/27 13Z,  -0.50, -10.17,  99.90, -10.83,  -0.16,
04/27 14Z,  -0.40,  -4.38,  99.90,  -4.94,  -0.16,
04/27 15Z,  -0.40,  -1.82,  99.90,  -2.38,  -0.16,  (max)
04/27 16Z,  -0.30,  -3.13,  99.90,  -3.58,  -0.16,
04/27 17Z,  -0.30,  -7.48,  99.90,  -7.93,  -0.16,
04/27 18Z,  -0.30, -13.42,  99.90, -13.87,  -0.16,
04/27 19Z,  -0.30, -19.95,  99.90, -20.40,  -0.16,
04/27 20Z,  -0.40, -26.43,  99.90, -26.99,  -0.16,
04/27 21Z,  -0.40, -32.58,  99.90, -33.13,  -0.16,
04/27 22Z,  -0.40, -36.59,  99.90, -37.15,  -0.16,  (min)
04/27 23Z,  -0.40, -34.98,  99.90, -35.53,  -0.16,
04/28 00Z,  -0.50, -27.44,  99.90, -28.09,  -0.16,
04/28 01Z,  -0.40, -17.99,  99.90, -18.55,  -0.16,
04/28 02Z,  -0.40,  -9.96,  99.90, -10.51,  -0.16,
04/28 03Z,  -0.40,  -4.58,  99.90,  -5.14,  -0.16,
04/28 04Z,  -0.40,  -2.98,  99.90,  -3.53,  -0.16,  (max)
04/28 05Z,  -0.40,  -5.21,  99.90,  -5.77,  -0.16,
04/28 06Z,  -0.40,  -9.94,  99.90, -10.49,  -0.16,
04/28 07Z,  -0.40, -15.82,  99.90, -16.37,  -0.16,
04/28 08Z,  -0.40, -21.80,  99.90, -22.36,  -0.16,
04/28 09Z,  -0.40, -27.30,  99.90, -27.85,  -0.16,
04/28 10Z,  -0.30, -31.35,  99.90, -31.80,  -0.16,  (min)
04/28 11Z,  -0.30, -31.01,  99.90, -31.46,  -0.16,
04/28 12Z,  -0.30, -24.51,  99.90, -24.97,  -0.16,