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
#Alitak, AK : 09/11/2026 21:24:35 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/10 06Z,  -0.70,  -7.63,  -8.22,  99.90,   0.11,
09/10 07Z,  -0.70,  -4.70,  -5.39,  99.90,   0.01,
09/10 08Z,  -0.70,  -1.74,  -2.33,  99.90,   0.11,
09/10 09Z,  -0.70,   0.33,  -0.08,  99.90,   0.29,
09/10 10Z,  -0.70,   0.99,   0.44,  99.90,   0.15,  (max)
09/10 11Z,  -0.70,   0.06,  -0.43,  99.90,   0.21,
09/10 12Z,  -0.80,  -2.29,  -2.52,  99.90,   0.57,
09/10 13Z,  -0.80,  -5.50,  -5.85,  99.90,   0.45,
09/10 14Z,  -0.80,  -8.84,  -9.39,  99.90,   0.25,
09/10 15Z,  -0.90, -11.57, -12.17,  99.90,   0.30,
09/10 16Z,  -0.90, -13.08, -13.71,  99.90,   0.27,  (min)
09/10 17Z,  -0.90, -13.06, -13.67,  99.90,   0.29,
09/10 18Z,  -0.90, -11.39, -12.28,  99.90,   0.01,
09/10 19Z,  -0.90,  -8.28,  -9.27,  99.90,  -0.09,
09/10 20Z,  -0.90,  -4.60,  -5.37,  99.90,   0.13,
09/10 21Z,  -0.90,  -1.49,  -1.84,  99.90,   0.55,
09/10 22Z,  -0.90,   0.27,   0.04,  99.90,   0.67,  (max)
09/10 23Z,  -0.90,   0.37,  -0.08,  99.90,   0.45,
09/11 00Z,  -0.90,  -1.11,  -1.41,  99.90,   0.60,
09/11 01Z,  -0.90,  -3.71,  -3.90,  99.90,   0.71,
09/11 02Z,  -0.90,  -6.69,  -7.08,  99.90,   0.51,
09/11 03Z,  -0.90,  -9.32,  -9.79,  99.90,   0.43,
09/11 04Z,  -0.90, -10.98, -11.51,  99.90,   0.37,
09/11 05Z,  -0.90, -11.32, -11.76,  99.90,   0.46,  (min)
09/11 06Z,  -1.00, -10.18, -10.64,  99.90,   0.54,
09/11 07Z,  -1.00,  -7.62,  -8.33,  99.90,   0.29,
09/11 08Z,  -0.90,  -4.23,  -4.88,  99.90,   0.25,
09/11 09Z,  -0.90,  -1.10,  -1.46,  99.90,   0.54,
09/11 10Z,  -0.90,   0.82,   0.50,  99.90,   0.58,
09/11 11Z,  -0.90,   1.10,   0.75,  99.90,   0.55,  (max)
09/11 12Z,  -1.00,  -0.31,  -0.49,  99.90,   0.82,
09/11 13Z,  -1.00,  -3.06,  -3.19,  99.90,   0.87,
09/11 14Z,  -1.00,  -6.45,  -6.70,  99.90,   0.75,
09/11 15Z,  -1.00,  -9.68, -10.02,  99.90,   0.66,
09/11 16Z,  -1.00, -12.02, -12.54,  99.90,   0.48,
09/11 17Z,  -1.00, -12.96, -13.55,  99.90,   0.41,  (min)
09/11 18Z,  -0.90, -12.28, -12.73,  99.90,   0.45,
09/11 19Z,  -0.90,  -9.95, -10.64,  99.90,   0.21,
09/11 20Z,  -0.90,  -6.40,  -7.14,  99.90,   0.16,
09/11 21Z,  -0.90,  -2.67,  -3.11,  99.90,   0.46,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
09/11 22Z,  -0.90,   0.07,  99.90,  -0.37,   0.45,
09/11 23Z,  -0.90,   1.17,  99.90,   0.72,   0.45,  (max)
09/12 00Z,  -1.00,   0.48,  99.90,  -0.08,   0.44,
09/12 01Z,  -1.00,  -1.75,  99.90,  -2.31,   0.44,
09/12 02Z,  -1.00,  -4.87,  99.90,  -5.43,   0.43,
09/12 03Z,  -1.00,  -8.09,  99.90,  -8.66,   0.43,
09/12 04Z,  -1.00, -10.65,  99.90, -11.23,   0.42,
09/12 05Z,  -0.90, -12.00,  99.90, -12.49,   0.42,  (min)
09/12 06Z,  -0.90, -11.87,  99.90, -12.36,   0.41,
09/12 07Z,  -0.90, -10.17,  99.90, -10.66,   0.41,
09/12 08Z,  -0.90,  -7.11,  99.90,  -7.61,   0.40,
09/12 09Z,  -0.80,  -3.51,  99.90,  -3.91,   0.40,
09/12 10Z,  -0.80,  -0.54,  99.90,  -0.94,   0.40,
09/12 11Z,  -0.80,   0.95,  99.90,   0.55,   0.40,  (max)
09/12 12Z,  -0.80,   0.69,  99.90,   0.28,   0.40,
09/12 13Z,  -0.80,  -1.19,  99.90,  -1.59,   0.40,
09/12 14Z,  -0.80,  -4.16,  99.90,  -4.56,   0.40,
09/12 15Z,  -0.90,  -7.44,  99.90,  -7.94,   0.40,
09/12 16Z,  -0.90, -10.26,  99.90, -10.76,   0.40,
09/12 17Z,  -0.90, -11.96,  99.90, -12.47,   0.40,
09/12 18Z,  -0.90, -12.18,  99.90, -12.69,   0.40,  (min)
09/12 19Z,  -0.90, -10.81,  99.90, -11.31,   0.40,
09/12 20Z,  -0.90,  -7.97,  99.90,  -8.47,   0.40,
09/12 21Z,  -0.80,  -4.27,  99.90,  -4.68,   0.40,
09/12 22Z,  -0.80,  -0.89,  99.90,  -1.29,   0.40,
09/12 23Z,  -0.80,   1.14,  99.90,   0.74,   0.40,
09/13 00Z,  -0.80,   1.39,  99.90,   0.98,   0.40,  (max)
09/13 01Z,  -0.80,  -0.11,  99.90,  -0.51,   0.40,
09/13 02Z,  -0.80,  -2.90,  99.90,  -3.31,   0.40,
09/13 03Z,  -0.80,  -6.27,  99.90,  -6.67,   0.40,
09/13 04Z,  -0.80,  -9.40,  99.90,  -9.81,   0.40,
09/13 05Z,  -0.80, -11.63,  99.90, -12.04,   0.40,
09/13 06Z,  -0.80, -12.48,  99.90, -12.89,   0.40,  (min)
09/13 07Z,  -0.70, -11.78,  99.90, -12.09,   0.40,
09/13 08Z,  -0.70,  -9.57,  99.90,  -9.88,   0.40,
09/13 09Z,  -0.70,  -6.25,  99.90,  -6.55,   0.40,
09/13 10Z,  -0.70,  -2.78,  99.90,  -3.08,   0.40,
09/13 11Z,  -0.70,  -0.28,  99.90,  -0.59,   0.40,
09/13 12Z,  -0.70,   0.59,  99.90,   0.29,   0.40,  (max)
09/13 13Z,  -0.70,  -0.22,  99.90,  -0.52,   0.40,
09/13 14Z,  -0.70,  -2.40,  99.90,  -2.70,   0.40,
09/13 15Z,  -0.70,  -5.31,  99.90,  -5.61,   0.40,
09/13 16Z,  -0.70,  -8.20,  99.90,  -8.50,   0.40,
09/13 17Z,  -0.70, -10.37,  99.90, -10.67,   0.40,
09/13 18Z,  -0.70, -11.30,  99.90, -11.61,   0.40,  (min)
09/13 19Z,  -0.60, -10.78,  99.90, -10.99,   0.40,
09/13 20Z,  -0.60,  -8.84,  99.90,  -9.05,   0.40,
09/13 21Z,  -0.60,  -5.77,  99.90,  -5.98,   0.40,
09/13 22Z,  -0.50,  -2.34,  99.90,  -2.44,   0.40,
09/13 23Z,  -0.50,   0.35,  99.90,   0.25,   0.40,
09/14 00Z,  -0.60,   1.48,  99.90,   1.27,   0.40,  (max)
09/14 01Z,  -0.60,   0.85,  99.90,   0.64,   0.40,
09/14 02Z,  -0.60,  -1.27,  99.90,  -1.48,   0.40,
09/14 03Z,  -0.70,  -4.34,  99.90,  -4.64,   0.40,
09/14 04Z,  -0.70,  -7.62,  99.90,  -7.92,   0.40,
09/14 05Z,  -0.70, -10.39,  99.90, -10.70,   0.40,
09/14 06Z,  -0.70, -12.08,  99.90, -12.39,   0.40,
09/14 07Z,  -0.70, -12.33,  99.90, -12.64,   0.40,  (min)
09/14 08Z,  -0.60, -11.10,  99.90, -11.31,   0.40,
09/14 09Z,  -0.60,  -8.59,  99.90,  -8.79,   0.40,
09/14 10Z,  -0.60,  -5.32,  99.90,  -5.52,   0.40,
09/14 11Z,  -0.60,  -2.29,  99.90,  -2.50,   0.40,
09/14 12Z,  -0.60,  -0.47,  99.90,  -0.68,   0.40,
09/14 13Z,  -0.60,  -0.24,  99.90,  -0.45,   0.40,  (max)
09/14 14Z,  -0.60,  -1.45,  99.90,  -1.66,   0.40,
09/14 15Z,  -0.70,  -3.67,  99.90,  -3.97,   0.40,
09/14 16Z,  -0.70,  -6.25,  99.90,  -6.55,   0.40,
09/14 17Z,  -0.70,  -8.52,  99.90,  -8.83,   0.40,
09/14 18Z,  -0.70,  -9.93,  99.90, -10.23,   0.40,
09/14 19Z,  -0.60, -10.09,  99.90, -10.29,   0.40,  (min)
09/14 20Z,  -0.60,  -8.95,  99.90,  -9.16,   0.40,
09/14 21Z,  -0.60,  -6.72,  99.90,  -6.92,   0.40,
09/14 22Z,  -0.60,  -3.79,  99.90,  -4.00,   0.40,
09/14 23Z,  -0.60,  -0.96,  99.90,  -1.16,   0.40,
09/15 00Z,  -0.60,   0.82,  99.90,   0.62,   0.40,
09/15 01Z,  -0.60,   1.02,  99.90,   0.81,   0.40,  (max)
09/15 02Z,  -0.70,  -0.30,  99.90,  -0.60,   0.40,
09/15 03Z,  -0.70,  -2.74,  99.90,  -3.04,   0.40,
09/15 04Z,  -0.70,  -5.74,  99.90,  -6.04,   0.40,
09/15 05Z,  -0.70,  -8.65,  99.90,  -8.95,   0.40,
09/15 06Z,  -0.70, -10.87,  99.90, -11.17,   0.40,
09/15 07Z,  -0.70, -11.92,  99.90, -12.22,   0.40,  (min)
09/15 08Z,  -0.70, -11.61,  99.90, -11.91,   0.40,
09/15 09Z,  -0.60, -10.04,  99.90, -10.24,   0.40,
09/15 10Z,  -0.60,  -7.51,  99.90,  -7.71,   0.40,
09/15 11Z,  -0.60,  -4.60,  99.90,  -4.80,   0.40,
09/15 12Z,  -0.60,  -2.23,  99.90,  -2.43,   0.40,
09/15 13Z,  99.90,  -1.12,  99.90,  99.90,   0.40,
09/15 14Z,  99.90,  -1.40,  99.90,  99.90,   0.40,
09/15 15Z,  99.90,  -2.76,  99.90,  99.90,   0.40,
09/15 16Z,  99.90,  -4.75,  99.90,  99.90,   0.40,
09/15 17Z,  99.90,  -6.79,  99.90,  99.90,   0.40,
09/15 18Z,  99.90,  -8.35,  99.90,  99.90,   0.40,