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 : 05/18/2026 05:23:52 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 12Z,   0.00, -16.14, -15.60,  99.90,   0.54,
05/16 13Z,   0.00,  -8.91,  -9.59,  99.90,  -0.68,
05/16 14Z,   0.00,  -4.40,  -5.11,  99.90,  -0.71,
05/16 15Z,   0.00,  -2.97,  -3.10,  99.90,  -0.13,  (max)
05/16 16Z,   0.00,  -4.98,  -5.32,  99.90,  -0.34,
05/16 17Z,   0.00,  -9.59, -10.05,  99.90,  -0.46,
05/16 18Z,   0.00, -15.40, -15.80,  99.90,  -0.40,
05/16 19Z,   0.00, -21.48, -21.59,  99.90,  -0.11,
05/16 20Z,  -0.10, -27.32, -26.98,  99.90,   0.44,
05/16 21Z,  -0.10, -32.82, -32.07,  99.90,   0.85,
05/16 22Z,  -0.20, -36.50, -36.81,  99.90,  -0.11,
05/16 23Z,  -0.20, -35.04, -36.96,  99.90,  -1.72,  (min)
05/17 00Z,  -0.30, -27.91, -26.30,  99.90,   1.91,
05/17 01Z,  -0.30, -18.98, -18.37,  99.90,   0.91,
05/17 02Z,  -0.30, -11.48, -12.04,  99.90,  -0.26,
05/17 03Z,  -0.40,  -6.40,  -7.46,  99.90,  -0.66,
05/17 04Z,  -0.40,  -4.65,  -5.02,  99.90,   0.03,  (max)
05/17 05Z,  -0.40,  -6.36,  -6.49,  99.90,   0.27,
05/17 06Z,  -0.50, -10.35, -10.84,  99.90,   0.01,
05/17 07Z,  -0.60, -15.39, -16.41,  99.90,  -0.42,
05/17 08Z,  -0.60, -20.54, -21.80,  99.90,  -0.66,
05/17 09Z,  -0.60, -25.23, -26.77,  99.90,  -0.94,
05/17 10Z,  -0.70, -28.72, -30.75,  99.90,  -1.33,  (min)
05/17 11Z,  -0.70, -28.31, -29.20,  99.90,  -0.19,
05/17 12Z,  -0.70, -22.22, -20.14,  99.90,   2.78,
05/17 13Z,  -0.70, -13.48, -13.27,  99.90,   0.91,
05/17 14Z,  -0.70,  -6.53,  -7.50,  99.90,  -0.27,
05/17 15Z,  -0.70,  -2.89,  -3.52,  99.90,   0.07,
05/17 16Z,  -0.70,  -2.67,  -2.47,  99.90,   0.90,  (max)
05/17 17Z,  -0.80,  -5.80,  -5.83,  99.90,   0.77,
05/17 18Z,  -0.80, -11.03, -11.35,  99.90,   0.48,
05/17 19Z,  -0.80, -17.06, -17.23,  99.90,   0.63,
05/17 20Z,  -0.80, -23.25, -22.98,  99.90,   1.07,
05/17 21Z,  -0.80, -29.21, -28.42,  99.90,   1.59,
05/17 22Z,  -0.80, -34.67, -33.44,  99.90,   2.03,
05/17 23Z,  -0.80, -37.56, -37.83,  99.90,   0.53,  (min)
05/18 00Z,  -0.70, -34.57, -34.22,  99.90,   1.05,
05/18 01Z,  -0.60, -26.24, -23.79,  99.90,   3.05,
05/18 02Z,  -0.50, -17.02, -16.22,  99.90,   1.30,
05/18 03Z,  -0.50,  -9.86, -10.34,  99.90,   0.02,
05/18 04Z,  -0.40,  -5.49,  -6.04,  99.90,  -0.15,
05/18 05Z,  -0.30,  -4.54,  -4.52,  99.90,   0.32,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/18 06Z,  -0.20,  -6.75,  99.90,  -6.65,   0.30,
05/18 07Z,  -0.20, -10.88,  99.90, -10.81,   0.27,
05/18 08Z,  -0.20, -16.00,  99.90, -15.95,   0.25,
05/18 09Z,  -0.10, -21.24,  99.90, -21.11,   0.22,
05/18 10Z,  -0.10, -25.98,  99.90, -25.88,   0.20,
05/18 11Z,  -0.10, -29.03,  99.90, -28.95,   0.17,  (min)
05/18 12Z,  -0.10, -27.42,  99.90, -27.37,   0.15,
05/18 13Z,  -0.10, -20.17,  99.90, -20.15,   0.12,
05/18 14Z,  -0.20, -11.27,  99.90, -11.37,   0.10,
05/18 15Z,  -0.20,  -5.01,  99.90,  -5.14,   0.07,
05/18 16Z,  -0.20,  -2.36,  99.90,  -2.51,   0.05,  (max)
05/18 17Z,  -0.20,  -3.16,  99.90,  -3.34,   0.02,
05/18 18Z,  -0.20,  -6.96,  99.90,  -7.14,   0.02,
05/18 19Z,  -0.10, -12.41,  99.90, -12.49,   0.02,
05/18 20Z,  -0.10, -18.52,  99.90, -18.59,   0.02,
05/18 21Z,  -0.20, -24.78,  99.90, -24.96,   0.02,
05/18 22Z,  -0.20, -30.81,  99.90, -30.99,   0.02,
05/18 23Z,  -0.20, -36.00,  99.90, -36.17,   0.02,
05/19 00Z,  -0.30, -37.79,  99.90, -38.07,   0.02,  (min)
05/19 01Z,  -0.30, -33.32,  99.90, -33.60,   0.02,
05/19 02Z,  -0.40, -24.24,  99.90, -24.62,   0.02,
05/19 03Z,  -0.40, -15.28,  99.90, -15.66,   0.02,
05/19 04Z,  -0.40,  -8.82,  99.90,  -9.20,   0.02,
05/19 05Z,  -0.40,  -5.22,  99.90,  -5.60,   0.02,
05/19 06Z,  -0.40,  -4.87,  99.90,  -5.25,   0.02,  (max)
05/19 07Z,  -0.30,  -7.33,  99.90,  -7.61,   0.02,
05/19 08Z,  -0.30, -11.56,  99.90, -11.84,   0.02,
05/19 09Z,  -0.20, -16.80,  99.90, -16.98,   0.02,
05/19 10Z,  -0.20, -22.15,  99.90, -22.33,   0.02,
05/19 11Z,  -0.20, -26.83,  99.90, -27.01,   0.02,
05/19 12Z,  -0.20, -29.21,  99.90, -29.39,   0.02,  (min)
05/19 13Z,  -0.20, -26.39,  99.90, -26.56,   0.02,
05/19 14Z,  -0.20, -18.40,  99.90, -18.57,   0.02,
05/19 15Z,  -0.20,  -9.88,  99.90, -10.06,   0.02,
05/19 16Z,  -0.20,  -4.57,  99.90,  -4.75,   0.02,
05/19 17Z,  -0.10,  -2.79,  99.90,  -2.87,   0.02,  (max)
05/19 18Z,  -0.10,  -4.20,  99.90,  -4.27,   0.02,
05/19 19Z,  -0.10,  -8.21,  99.90,  -8.28,   0.02,
05/19 20Z,  -0.10, -13.63,  99.90, -13.71,   0.02,
05/19 21Z,  -0.10, -19.74,  99.90, -19.82,   0.02,
05/19 22Z,  -0.20, -26.04,  99.90, -26.22,   0.02,
05/19 23Z,  -0.20, -31.95,  99.90, -32.13,   0.02,
05/20 00Z,  -0.20, -36.57,  99.90, -36.74,   0.02,
05/20 01Z,  -0.30, -37.13,  99.90, -37.41,   0.02,  (min)
05/20 02Z,  -0.30, -31.48,  99.90, -31.76,   0.02,
05/20 03Z,  -0.30, -22.28,  99.90, -22.56,   0.02,
05/20 04Z,  -0.30, -14.08,  99.90, -14.36,   0.02,
05/20 05Z,  -0.30,  -8.45,  99.90,  -8.73,   0.02,
05/20 06Z,  -0.30,  -5.47,  99.90,  -5.74,   0.02,
05/20 07Z,  -0.30,  -5.46,  99.90,  -5.74,   0.02,  (max)
05/20 08Z,  -0.30,  -8.03,  99.90,  -8.30,   0.02,
05/20 09Z,  -0.30, -12.37,  99.90, -12.65,   0.02,
05/20 10Z,  -0.40, -17.76,  99.90, -18.13,   0.02,
05/20 11Z,  -0.40, -23.12,  99.90, -23.49,   0.02,
05/20 12Z,  -0.50, -27.52,  99.90, -27.99,   0.02,
05/20 13Z,  -0.50, -29.12,  99.90, -29.60,   0.02,  (min)
05/20 14Z,  -0.50, -25.34,  99.90, -25.81,   0.02,
05/20 15Z,  -0.50, -17.21,  99.90, -17.68,   0.02,
05/20 16Z,  -0.50,  -9.56,  99.90, -10.03,   0.02,
05/20 17Z,  -0.50,  -5.23,  99.90,  -5.71,   0.02,
05/20 18Z,  -0.50,  -4.00,  99.90,  -4.48,   0.02,  (max)
05/20 19Z,  -0.60,  -5.54,  99.90,  -6.12,   0.02,
05/20 20Z,  -0.60,  -9.41,  99.90,  -9.99,   0.02,
05/20 21Z,  -0.70, -14.67,  99.90, -15.35,   0.02,
05/20 22Z,  -0.80, -20.72,  99.90, -21.50,   0.02,
05/20 23Z,  -0.80, -26.87,  99.90, -27.65,   0.02,
05/21 00Z,  -0.80, -32.39,  99.90, -33.17,   0.02,
05/21 01Z,  -0.80, -36.23,  99.90, -37.01,   0.02,  (min)
05/21 02Z,  -0.80, -35.69,  99.90, -36.46,   0.02,
05/21 03Z,  -0.70, -29.41,  99.90, -30.09,   0.02,
05/21 04Z,  -0.70, -20.73,  99.90, -21.41,   0.02,
05/21 05Z,  -0.60, -13.56,  99.90, -14.14,   0.02,
05/21 06Z,  -0.50,  -8.67,  99.90,  -9.15,   0.02,
05/21 07Z,  -0.40,  -6.04,  99.90,  -6.42,   0.02,  (max)
05/21 08Z,  -0.30,  -6.17,  99.90,  -6.45,   0.02,
05/21 09Z,  -0.20,  -8.78,  99.90,  -8.96,   0.02,
05/21 10Z,  -0.20, -13.24,  99.90, -13.42,   0.02,
05/21 11Z,  -0.10, -18.65,  99.90, -18.73,   0.02,
05/21 12Z,   0.00, -23.81,  99.90, -23.79,   0.02,
05/21 13Z,   0.00, -27.80,  99.90, -27.78,   0.02,
05/21 14Z,   0.00, -28.76,  99.90, -28.73,   0.02,  (min)
05/21 15Z,   0.10, -24.53,  99.90, -24.41,   0.02,
05/21 16Z,   0.20, -16.90,  99.90, -16.68,   0.02,
05/21 17Z,   0.20, -10.40,  99.90, -10.17,   0.02,
05/21 18Z,   0.20,  -6.84,  99.90,  -6.62,   0.02,
05/21 19Z,   0.20,  -5.71,  99.90,  -5.49,   0.02,  (max)
05/21 20Z,   0.10,  -6.99,  99.90,  -6.87,   0.02,
05/21 21Z,   0.00, -10.49,  99.90, -10.47,   0.02,
05/21 22Z,   0.00, -15.49,  99.90, -15.47,   0.02,
05/21 23Z,  -0.10, -21.32,  99.90, -21.40,   0.02,
05/22 00Z,  -0.10, -27.05,  99.90, -27.13,   0.02,