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 : 07/19/2026 11:22:05 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/17 12Z,  -0.50,  12.69,  12.60,  99.90,   0.41,
07/17 13Z,  -0.50,  12.74,  12.73,  99.90,   0.49,  (max)
07/17 14Z,  -0.50,  11.18,  11.45,  99.90,   0.77,
07/17 15Z,  -0.60,   8.36,   8.65,  99.90,   0.89,
07/17 16Z,  -0.60,   4.89,   5.17,  99.90,   0.88,
07/17 17Z,  -0.60,   1.47,   1.68,  99.90,   0.81,
07/17 18Z,  -0.60,  -1.19,  -1.04,  99.90,   0.75,
07/17 19Z,  -0.60,  -2.51,  -2.28,  99.90,   0.83,  (min)
07/17 20Z,  -0.60,  -2.17,  -1.93,  99.90,   0.84,
07/17 21Z,  -0.60,  -0.16,  -0.33,  99.90,   0.43,
07/17 22Z,  -0.60,   3.16,   3.07,  99.90,   0.51,
07/17 23Z,  -0.60,   6.94,   7.02,  99.90,   0.68,
07/18 00Z,  -0.50,  10.02,  10.24,  99.90,   0.72,
07/18 01Z,  -0.50,  11.61,  11.88,  99.90,   0.77,  (max)
07/18 02Z,  -0.50,  11.56,  11.67,  99.90,   0.61,
07/18 03Z,  -0.50,  10.12,  10.32,  99.90,   0.70,
07/18 04Z,  -0.40,   7.77,   7.98,  99.90,   0.61,
07/18 05Z,  -0.40,   5.14,   5.34,  99.90,   0.60,
07/18 06Z,  -0.50,   2.87,   3.12,  99.90,   0.75,
07/18 07Z,  -0.50,   1.54,   1.67,  99.90,   0.63,  (min)
07/18 08Z,  -0.50,   1.48,   1.73,  99.90,   0.75,
07/18 09Z,  -0.40,   2.74,   3.10,  99.90,   0.76,
07/18 10Z,  -0.40,   5.10,   5.14,  99.90,   0.44,
07/18 11Z,  -0.40,   8.03,   8.07,  99.90,   0.44,
07/18 12Z,  -0.50,  10.54,  10.68,  99.90,   0.64,
07/18 13Z,  -0.50,  11.78,  11.79,  99.90,   0.51,  (max)
07/18 14Z,  -0.50,  11.48,  11.50,  99.90,   0.52,
07/18 15Z,  -0.50,   9.81,  10.10,  99.90,   0.79,
07/18 16Z,  -0.50,   7.15,   7.42,  99.90,   0.77,
07/18 17Z,  -0.50,   4.08,   4.31,  99.90,   0.73,
07/18 18Z,  -0.50,   1.23,   1.46,  99.90,   0.73,
07/18 19Z,  -0.50,  -0.75,  -0.42,  99.90,   0.83,
07/18 20Z,  -0.50,  -1.37,  -0.92,  99.90,   0.95,  (min)
07/18 21Z,  -0.60,  -0.49,  -0.27,  99.90,   0.82,
07/18 22Z,  -0.60,   1.77,   1.85,  99.90,   0.68,
07/18 23Z,  -0.60,   4.99,   5.21,  99.90,   0.82,
07/19 00Z,  -0.50,   8.31,   8.55,  99.90,   0.74,
07/19 01Z,  -0.60,  10.71,  11.20,  99.90,   1.09,
07/19 02Z,  -0.60,  11.65,  12.14,  99.90,   1.09,  (max)
07/19 03Z,  -0.60,  11.13,  11.38,  99.90,   0.85,
07/19 04Z,  -0.50,   9.45,   9.84,  99.90,   0.89,
07/19 05Z,  -0.50,   7.07,   7.54,  99.90,   0.97,
07/19 06Z,  -0.40,   4.57,   4.95,  99.90,   0.78,
07/19 07Z,  -0.40,   2.55,   2.96,  99.90,   0.81,
07/19 08Z,  -0.40,   1.51,   1.93,  99.90,   0.82,  (min)
07/19 09Z,  -0.40,   1.68,   2.10,  99.90,   0.82,
07/19 10Z,  -0.50,   2.99,   3.36,  99.90,   0.87,
07/19 11Z,  -0.50,   5.20,   5.41,  99.90,   0.71,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/19 12Z,  -0.50,   7.74,  99.90,   7.96,   0.71,
07/19 13Z,  -0.60,   9.74,  99.90,   9.86,   0.72,
07/19 14Z,  -0.60,  10.54,  99.90,  10.65,   0.72,  (max)
07/19 15Z,  -0.60,  10.03,  99.90,  10.15,   0.72,
07/19 16Z,  -0.60,   8.45,  99.90,   8.57,   0.72,
07/19 17Z,  -0.60,   6.14,  99.90,   6.27,   0.72,
07/19 18Z,  -0.60,   3.62,  99.90,   3.75,   0.73,
07/19 19Z,  -0.60,   1.48,  99.90,   1.60,   0.73,
07/19 20Z,  -0.70,   0.24,  99.90,   0.27,   0.73,  (min)
07/19 21Z,  -0.70,   0.24,  99.90,   0.27,   0.73,
07/19 22Z,  -0.70,   1.47,  99.90,   1.50,   0.73,
07/19 23Z,  -0.70,   3.73,  99.90,   3.77,   0.73,
07/20 00Z,  -0.70,   6.61,  99.90,   6.64,   0.73,
07/20 01Z,  -0.80,   9.30,  99.90,   9.23,   0.73,
07/20 02Z,  -0.80,  10.98,  99.90,  10.92,   0.73,
07/20 03Z,  -0.80,  11.36,  99.90,  11.29,   0.73,  (max)
07/20 04Z,  -0.80,  10.53,  99.90,  10.46,   0.73,
07/20 05Z,  -0.80,   8.76,  99.90,   8.70,   0.73,
07/20 06Z,  -0.80,   6.48,  99.90,   6.41,   0.73,
07/20 07Z,  -0.80,   4.21,  99.90,   4.14,   0.73,
07/20 08Z,  -0.80,   2.49,  99.90,   2.43,   0.73,
07/20 09Z,  -0.80,   1.72,  99.90,   1.65,   0.73,  (min)
07/20 10Z,  -0.80,   1.98,  99.90,   1.92,   0.73,
07/20 11Z,  -0.80,   3.18,  99.90,   3.12,   0.73,
07/20 12Z,  -0.80,   5.09,  99.90,   5.02,   0.73,
07/20 13Z,  -0.80,   7.17,  99.90,   7.11,   0.73,
07/20 14Z,  -0.90,   8.69,  99.90,   8.52,   0.73,
07/20 15Z,  -0.90,   9.19,  99.90,   9.02,   0.73,  (max)
07/20 16Z,  -0.90,   8.68,  99.90,   8.51,   0.73,
07/20 17Z,  -0.90,   7.35,  99.90,   7.19,   0.73,
07/20 18Z,  -0.90,   5.52,  99.90,   5.36,   0.73,
07/20 19Z,  -0.90,   3.65,  99.90,   3.48,   0.73,
07/20 20Z,  -0.90,   2.21,  99.90,   2.05,   0.73,
07/20 21Z,  -0.90,   1.62,  99.90,   1.46,   0.73,  (min)
07/20 22Z,  -0.80,   2.05,  99.90,   1.98,   0.73,
07/20 23Z,  -0.80,   3.38,  99.90,   3.31,   0.73,
07/21 00Z,  -0.80,   5.42,  99.90,   5.35,   0.73,
07/21 01Z,  -0.80,   7.78,  99.90,   7.72,   0.73,
07/21 02Z,  -0.80,   9.81,  99.90,   9.74,   0.73,
07/21 03Z,  -0.90,  10.89,  99.90,  10.72,   0.73,  (max)
07/21 04Z,  -0.90,  10.87,  99.90,  10.70,   0.73,
07/21 05Z,  -0.90,   9.89,  99.90,   9.72,   0.73,
07/21 06Z,  -0.90,   8.16,  99.90,   8.00,   0.73,
07/21 07Z,  -0.90,   6.07,  99.90,   5.90,   0.73,
07/21 08Z,  -0.80,   4.07,  99.90,   4.01,   0.73,
07/21 09Z,  -0.80,   2.62,  99.90,   2.55,   0.73,
07/21 10Z,  -0.70,   1.99,  99.90,   2.02,   0.73,  (min)
07/21 11Z,  -0.70,   2.21,  99.90,   2.25,   0.73,
07/21 12Z,  -0.70,   3.19,  99.90,   3.22,   0.73,
07/21 13Z,  -0.80,   4.74,  99.90,   4.67,   0.73,
07/21 14Z,  -0.80,   6.41,  99.90,   6.34,   0.73,
07/21 15Z,  -0.70,   7.60,  99.90,   7.63,   0.73,
07/21 16Z,  -0.70,   8.00,  99.90,   8.03,   0.73,  (max)
07/21 17Z,  -0.70,   7.65,  99.90,   7.68,   0.73,
07/21 18Z,  -0.60,   6.69,  99.90,   6.83,   0.73,
07/21 19Z,  -0.60,   5.39,  99.90,   5.52,   0.73,
07/21 20Z,  -0.50,   4.12,  99.90,   4.35,   0.73,
07/21 21Z,  -0.50,   3.27,  99.90,   3.51,   0.73,
07/21 22Z,  -0.40,   3.12,  99.90,   3.45,   0.73,  (min)
07/21 23Z,  -0.40,   3.72,  99.90,   4.06,   0.73,
07/22 00Z,  -0.40,   4.94,  99.90,   5.28,   0.73,
07/22 01Z,  -0.40,   6.62,  99.90,   6.95,   0.73,
07/22 02Z,  -0.40,   8.45,  99.90,   8.79,   0.73,
07/22 03Z,  -0.40,   9.92,  99.90,  10.26,   0.73,
07/22 04Z,  -0.30,  10.58,  99.90,  11.01,   0.73,  (max)
07/22 05Z,  -0.30,  10.35,  99.90,  10.79,   0.73,
07/22 06Z,  -0.30,   9.35,  99.90,   9.79,   0.73,
07/22 07Z,  -0.30,   7.75,  99.90,   8.19,   0.73,
07/22 08Z,  -0.30,   5.87,  99.90,   6.30,   0.73,
07/22 09Z,  -0.30,   4.09,  99.90,   4.52,   0.73,
07/22 10Z,  -0.30,   2.77,  99.90,   3.21,   0.73,
07/22 11Z,  -0.30,   2.16,  99.90,   2.59,   0.73,  (min)
07/22 12Z,  -0.30,   2.24,  99.90,   2.67,   0.73,
07/22 13Z,  -0.30,   2.96,  99.90,   3.39,   0.73,
07/22 14Z,  -0.40,   4.21,  99.90,   4.55,   0.73,
07/22 15Z,  -0.50,   5.63,  99.90,   5.87,   0.73,
07/22 16Z,  -0.60,   6.70,  99.90,   6.83,   0.73,
07/22 17Z,  -0.60,   7.18,  99.90,   7.31,   0.73,  (max)
07/22 18Z,  -0.70,   7.09,  99.90,   7.12,   0.73,
07/22 19Z,  -0.70,   6.53,  99.90,   6.56,   0.73,
07/22 20Z,  -0.70,   5.69,  99.90,   5.72,   0.73,
07/22 21Z,  -0.70,   4.88,  99.90,   4.91,   0.73,
07/22 22Z,  -0.70,   4.39,  99.90,   4.42,   0.73,  (min)
07/22 23Z,  -0.70,   4.43,  99.90,   4.47,   0.73,
07/23 00Z,  -0.70,   5.00,  99.90,   5.04,   0.73,