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 15:21:57 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
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,  -0.50,   4.57,   4.95,  99.90,   0.88,
07/19 07Z,  -0.50,   2.55,   2.96,  99.90,   0.91,
07/19 08Z,  -0.50,   1.51,   1.93,  99.90,   0.92,  (min)
07/19 09Z,  -0.50,   1.68,   2.10,  99.90,   0.92,
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,
07/19 12Z,  -0.50,   7.74,   7.90,  99.90,   0.66,
07/19 13Z,  -0.50,   9.74,   9.95,  99.90,   0.71,
07/19 14Z,  -0.50,  10.54,  10.66,  99.90,   0.62,  (max)
07/19 15Z,  -0.60,  10.03,  10.15,  99.90,   0.72,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/19 16Z,  -0.60,   8.45,  99.90,   8.57,   0.72,
07/19 17Z,  -0.60,   6.14,  99.90,   6.26,   0.72,
07/19 18Z,  -0.70,   3.62,  99.90,   3.64,   0.72,
07/19 19Z,  -0.70,   1.48,  99.90,   1.50,   0.72,
07/19 20Z,  -0.70,   0.24,  99.90,   0.26,   0.72,
07/19 21Z,  -0.70,   0.24,  99.90,   0.26,   0.72,  (min)
07/19 22Z,  -0.70,   1.47,  99.90,   1.49,   0.72,
07/19 23Z,  -0.70,   3.73,  99.90,   3.75,   0.72,
07/20 00Z,  -0.70,   6.61,  99.90,   6.63,   0.72,
07/20 01Z,  -0.70,   9.30,  99.90,   9.32,   0.72,
07/20 02Z,  -0.70,  10.98,  99.90,  11.00,   0.72,
07/20 03Z,  -0.80,  11.36,  99.90,  11.28,   0.72,  (max)
07/20 04Z,  -0.80,  10.53,  99.90,  10.45,   0.72,
07/20 05Z,  -0.80,   8.76,  99.90,   8.68,   0.72,
07/20 06Z,  -0.80,   6.48,  99.90,   6.40,   0.72,
07/20 07Z,  -0.80,   4.21,  99.90,   4.13,   0.72,
07/20 08Z,  -0.80,   2.49,  99.90,   2.41,   0.72,
07/20 09Z,  -0.80,   1.72,  99.90,   1.64,   0.72,  (min)
07/20 10Z,  -0.80,   1.98,  99.90,   1.90,   0.72,
07/20 11Z,  -0.80,   3.18,  99.90,   3.10,   0.72,
07/20 12Z,  -0.80,   5.09,  99.90,   5.01,   0.72,
07/20 13Z,  -0.80,   7.17,  99.90,   7.09,   0.72,
07/20 14Z,  -0.90,   8.69,  99.90,   8.51,   0.72,
07/20 15Z,  -0.90,   9.19,  99.90,   9.01,   0.72,  (max)
07/20 16Z,  -0.90,   8.68,  99.90,   8.50,   0.72,
07/20 17Z,  -0.90,   7.35,  99.90,   7.17,   0.72,
07/20 18Z,  -0.90,   5.52,  99.90,   5.34,   0.72,
07/20 19Z,  -0.90,   3.65,  99.90,   3.47,   0.72,
07/20 20Z,  -0.90,   2.21,  99.90,   2.03,   0.72,
07/20 21Z,  -0.90,   1.62,  99.90,   1.45,   0.72,  (min)
07/20 22Z,  -0.80,   2.05,  99.90,   1.97,   0.72,
07/20 23Z,  -0.80,   3.38,  99.90,   3.30,   0.72,
07/21 00Z,  -0.80,   5.42,  99.90,   5.34,   0.72,
07/21 01Z,  -0.80,   7.78,  99.90,   7.71,   0.72,
07/21 02Z,  -0.80,   9.81,  99.90,   9.73,   0.72,
07/21 03Z,  -0.80,  10.89,  99.90,  10.81,   0.72,  (max)
07/21 04Z,  -0.90,  10.87,  99.90,  10.69,   0.72,
07/21 05Z,  -0.90,   9.89,  99.90,   9.71,   0.72,
07/21 06Z,  -0.90,   8.16,  99.90,   7.98,   0.72,
07/21 07Z,  -0.80,   6.07,  99.90,   5.99,   0.72,
07/21 08Z,  -0.80,   4.07,  99.90,   3.99,   0.72,
07/21 09Z,  -0.80,   2.62,  99.90,   2.54,   0.72,
07/21 10Z,  -0.70,   1.99,  99.90,   2.01,   0.72,  (min)
07/21 11Z,  -0.70,   2.21,  99.90,   2.23,   0.72,
07/21 12Z,  -0.70,   3.19,  99.90,   3.21,   0.72,
07/21 13Z,  -0.70,   4.74,  99.90,   4.76,   0.72,
07/21 14Z,  -0.70,   6.41,  99.90,   6.43,   0.72,
07/21 15Z,  -0.70,   7.60,  99.90,   7.62,   0.72,
07/21 16Z,  -0.70,   8.00,  99.90,   8.02,   0.72,  (max)
07/21 17Z,  -0.60,   7.65,  99.90,   7.77,   0.72,
07/21 18Z,  -0.60,   6.69,  99.90,   6.81,   0.72,
07/21 19Z,  -0.50,   5.39,  99.90,   5.61,   0.72,
07/21 20Z,  -0.40,   4.12,  99.90,   4.44,   0.72,
07/21 21Z,  -0.40,   3.27,  99.90,   3.59,   0.72,
07/21 22Z,  -0.30,   3.12,  99.90,   3.54,   0.72,  (min)
07/21 23Z,  -0.30,   3.72,  99.90,   4.14,   0.72,
07/22 00Z,  -0.30,   4.94,  99.90,   5.36,   0.72,
07/22 01Z,  -0.30,   6.62,  99.90,   7.04,   0.72,
07/22 02Z,  -0.30,   8.45,  99.90,   8.88,   0.72,
07/22 03Z,  -0.30,   9.92,  99.90,  10.34,   0.72,
07/22 04Z,  -0.30,  10.58,  99.90,  11.00,   0.72,  (max)
07/22 05Z,  -0.40,  10.35,  99.90,  10.67,   0.72,
07/22 06Z,  -0.40,   9.35,  99.90,   9.67,   0.72,
07/22 07Z,  -0.30,   7.75,  99.90,   8.17,   0.72,
07/22 08Z,  -0.30,   5.87,  99.90,   6.29,   0.72,
07/22 09Z,  -0.30,   4.09,  99.90,   4.51,   0.72,
07/22 10Z,  -0.30,   2.77,  99.90,   3.19,   0.72,
07/22 11Z,  -0.30,   2.16,  99.90,   2.58,   0.72,
07/22 12Z,  -0.40,   2.24,  99.90,   2.56,   0.72,  (min)
07/22 13Z,  -0.40,   2.96,  99.90,   3.28,   0.72,
07/22 14Z,  -0.50,   4.21,  99.90,   4.43,   0.72,
07/22 15Z,  -0.50,   5.63,  99.90,   5.85,   0.72,
07/22 16Z,  -0.60,   6.70,  99.90,   6.82,   0.72,
07/22 17Z,  -0.60,   7.18,  99.90,   7.30,   0.72,  (max)
07/22 18Z,  -0.60,   7.09,  99.90,   7.21,   0.72,
07/22 19Z,  -0.70,   6.53,  99.90,   6.55,   0.72,
07/22 20Z,  -0.70,   5.69,  99.90,   5.71,   0.72,
07/22 21Z,  -0.70,   4.88,  99.90,   4.90,   0.72,
07/22 22Z,  -0.70,   4.39,  99.90,   4.41,   0.72,  (min)
07/22 23Z,  -0.70,   4.43,  99.90,   4.45,   0.72,
07/23 00Z,  -0.70,   5.00,  99.90,   5.03,   0.72,
07/23 01Z,  -0.80,   5.97,  99.90,   5.90,   0.72,
07/23 02Z,  -0.80,   7.27,  99.90,   7.19,   0.72,
07/23 03Z,  -0.80,   8.70,  99.90,   8.62,   0.72,
07/23 04Z,  -0.90,   9.80,  99.90,   9.62,   0.72,
07/23 05Z,  -0.90,  10.23,  99.90,  10.05,   0.72,  (max)
07/23 06Z,  -0.90,   9.95,  99.90,   9.77,   0.72,
07/23 07Z,  99.90,   9.03,  99.90,  99.90,   0.72,
07/23 08Z,  99.90,   7.56,  99.90,  99.90,   0.72,
07/23 09Z,  99.90,   5.81,  99.90,  99.90,   0.72,
07/23 10Z,  99.90,   4.11,  99.90,  99.90,   0.72,
07/23 11Z,  99.90,   2.81,  99.90,  99.90,   0.72,
07/23 12Z,  99.90,   2.11,  99.90,  99.90,   0.72,