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
#Atka, AK : 01/21/2026 19:21:47 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/20 00Z,   0.10,   3.72,   4.31,  99.90,   0.49,  (max)
01/20 01Z,   0.20,   3.46,   4.17,  99.90,   0.51,
01/20 02Z,   0.20,   3.07,   3.98,  99.90,   0.71,
01/20 03Z,   0.30,   2.59,   3.65,  99.90,   0.76,
01/20 04Z,   0.30,   2.04,   3.25,  99.90,   0.91,
01/20 05Z,   0.50,   1.42,   2.56,  99.90,   0.64,
01/20 06Z,   0.40,   0.81,   1.91,  99.90,   0.70,
01/20 07Z,   0.40,   0.29,   1.32,  99.90,   0.63,
01/20 08Z,   0.50,  -0.10,   0.90,  99.90,   0.50,
01/20 09Z,   0.60,  -0.32,   0.46,  99.90,   0.18,
01/20 10Z,   0.60,  -0.32,   0.28,  99.90,   0.00,
01/20 11Z,   0.60,  -0.15,   0.19,  99.90,  -0.26,  (min)
01/20 12Z,   0.60,   0.18,   0.25,  99.90,  -0.53,
01/20 13Z,   0.60,   0.64,   0.62,  99.90,  -0.62,
01/20 14Z,   0.60,   1.17,   0.88,  99.90,  -0.89,
01/20 15Z,   0.50,   1.70,   1.32,  99.90,  -0.88,
01/20 16Z,   0.40,   2.23,   1.93,  99.90,  -0.70,
01/20 17Z,   0.30,   2.69,   2.47,  99.90,  -0.52,
01/20 18Z,   0.10,   3.04,   2.84,  99.90,  -0.30,
01/20 19Z,   0.00,   3.30,   3.14,  99.90,  -0.16,
01/20 20Z,   0.10,   3.49,   3.38,  99.90,  -0.21,
01/20 21Z,   0.00,   3.60,   3.39,  99.90,  -0.21,
01/20 22Z,   0.00,   3.65,   3.52,  99.90,  -0.13,
01/20 23Z,   0.00,   3.63,   3.56,  99.90,  -0.07,
01/21 00Z,   0.00,   3.54,   3.58,  99.90,   0.04,  (max)
01/21 01Z,   0.00,   3.37,   3.38,  99.90,   0.01,
01/21 02Z,   0.00,   3.10,   3.18,  99.90,   0.08,
01/21 03Z,   0.00,   2.72,   2.89,  99.90,   0.17,
01/21 04Z,   0.00,   2.27,   2.58,  99.90,   0.31,
01/21 05Z,   0.00,   1.78,   2.00,  99.90,   0.22,
01/21 06Z,   0.00,   1.24,   1.43,  99.90,   0.19,
01/21 07Z,   0.00,   0.72,   0.80,  99.90,   0.08,
01/21 08Z,   0.00,   0.30,   0.26,  99.90,  -0.04,
01/21 09Z,   0.00,   0.02,  -0.30,  99.90,  -0.32,
01/21 10Z,  -0.10,  -0.10,  -0.57,  99.90,  -0.37,
01/21 11Z,  -0.10,  -0.02,  -0.66,  99.90,  -0.54,  (min)
01/21 12Z,  -0.10,   0.24,  -0.64,  99.90,  -0.78,
01/21 13Z,  -0.10,   0.64,  -0.38,  99.90,  -0.92,
01/21 14Z,  -0.10,   1.13,  -0.02,  99.90,  -1.05,
01/21 15Z,  -0.10,   1.63,   0.54,  99.90,  -0.99,
01/21 16Z,  -0.10,   2.10,   1.17,  99.90,  -0.83,
01/21 17Z,   0.00,   2.54,   1.63,  99.90,  -0.91,
01/21 18Z,   0.00,   2.87,   2.08,  99.90,  -0.79,
01/21 19Z,   0.00,   3.08,   2.44,  99.90,  -0.64,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
01/21 20Z,   0.00,   3.21,  99.90,   2.64,  -0.57,
01/21 21Z,   0.00,   3.26,  99.90,   2.77,  -0.49,
01/21 22Z,   0.00,   3.25,  99.90,   2.83,  -0.42,
01/21 23Z,   0.00,   3.21,  99.90,   2.86,  -0.35,
01/22 00Z,   0.00,   3.16,  99.90,   2.89,  -0.27,  (max)
01/22 01Z,   0.00,   3.07,  99.90,   2.87,  -0.20,
01/22 02Z,   0.00,   2.92,  99.90,   2.80,  -0.13,
01/22 03Z,   0.00,   2.69,  99.90,   2.64,  -0.05,
01/22 04Z,   0.00,   2.38,  99.90,   2.39,   0.02,
01/22 05Z,   0.00,   2.02,  99.90,   2.11,   0.09,
01/22 06Z,   0.00,   1.61,  99.90,   1.78,   0.16,
01/22 07Z,   0.00,   1.17,  99.90,   1.41,   0.24,
01/22 08Z,  -0.10,   0.78,  99.90,   0.91,   0.24,
01/22 09Z,  -0.10,   0.47,  99.90,   0.61,   0.24,
01/22 10Z,  -0.10,   0.28,  99.90,   0.42,   0.24,
01/22 11Z,  -0.10,   0.26,  99.90,   0.40,   0.24,  (min)
01/22 12Z,  -0.10,   0.45,  99.90,   0.59,   0.24,
01/22 13Z,  -0.10,   0.79,  99.90,   0.93,   0.24,
01/22 14Z,  -0.10,   1.22,  99.90,   1.36,   0.24,
01/22 15Z,  -0.10,   1.69,  99.90,   1.83,   0.24,
01/22 16Z,  -0.10,   2.12,  99.90,   2.26,   0.24,
01/22 17Z,  -0.10,   2.50,  99.90,   2.63,   0.24,
01/22 18Z,  -0.10,   2.79,  99.90,   2.93,   0.24,
01/22 19Z,  -0.10,   2.94,  99.90,   3.08,   0.24,
01/22 20Z,  -0.10,   2.98,  99.90,   3.11,   0.24,  (max)
01/22 21Z,  -0.20,   2.93,  99.90,   2.97,   0.24,
01/22 22Z,  -0.20,   2.82,  99.90,   2.85,   0.24,
01/22 23Z,  -0.20,   2.68,  99.90,   2.72,   0.24,
01/23 00Z,  -0.20,   2.60,  99.90,   2.64,   0.24,
01/23 01Z,  -0.20,   2.55,  99.90,   2.59,   0.24,  (min)
01/23 02Z,  -0.10,   2.50,  99.90,   2.64,   0.24,  (max)
01/23 03Z,  -0.10,   2.42,  99.90,   2.56,   0.24,
01/23 04Z,  -0.10,   2.28,  99.90,   2.42,   0.24,
01/23 05Z,   0.00,   2.09,  99.90,   2.33,   0.24,
01/23 06Z,  -0.10,   1.86,  99.90,   2.00,   0.24,
01/23 07Z,  -0.10,   1.58,  99.90,   1.72,   0.24,
01/23 08Z,  -0.10,   1.27,  99.90,   1.40,   0.24,
01/23 09Z,  -0.20,   0.99,  99.90,   1.03,   0.24,
01/23 10Z,  -0.10,   0.78,  99.90,   0.92,   0.24,
01/23 11Z,  -0.10,   0.69,  99.90,   0.82,   0.24,  (min)
01/23 12Z,  -0.10,   0.78,  99.90,   0.92,   0.24,
01/23 13Z,  -0.10,   1.06,  99.90,   1.20,   0.24,
01/23 14Z,   0.00,   1.44,  99.90,   1.68,   0.24,
01/23 15Z,  -0.10,   1.87,  99.90,   2.01,   0.24,
01/23 16Z,   0.00,   2.28,  99.90,   2.52,   0.24,
01/23 17Z,   0.00,   2.61,  99.90,   2.85,   0.24,
01/23 18Z,   0.00,   2.84,  99.90,   3.08,   0.24,
01/23 19Z,   0.00,   2.94,  99.90,   3.18,   0.24,  (max)
01/23 20Z,   0.00,   2.88,  99.90,   3.12,   0.24,
01/23 21Z,   0.00,   2.70,  99.90,   2.93,   0.24,
01/23 22Z,   0.00,   2.44,  99.90,   2.68,   0.24,
01/23 23Z,   0.00,   2.17,  99.90,   2.40,   0.24,
01/24 00Z,   0.00,   1.96,  99.90,   2.19,   0.24,
01/24 01Z,   0.00,   1.87,  99.90,   2.11,   0.24,
01/24 02Z,   0.00,   1.86,  99.90,   2.09,   0.24,  (min)
01/24 03Z,   0.00,   1.88,  99.90,   2.12,   0.24,
01/24 04Z,   0.00,   1.92,  99.90,   2.16,   0.24,
01/24 05Z,   0.10,   1.93,  99.90,   2.27,   0.24,  (max)
01/24 06Z,   0.00,   1.89,  99.90,   2.13,   0.24,
01/24 07Z,   0.00,   1.81,  99.90,   2.05,   0.24,
01/24 08Z,   0.00,   1.68,  99.90,   1.92,   0.24,
01/24 09Z,   0.00,   1.49,  99.90,   1.73,   0.24,
01/24 10Z,   0.10,   1.31,  99.90,   1.65,   0.24,
01/24 11Z,   0.10,   1.20,  99.90,   1.54,   0.24,  (min)
01/24 12Z,   0.20,   1.22,  99.90,   1.66,   0.24,
01/24 13Z,   0.20,   1.42,  99.90,   1.85,   0.24,
01/24 14Z,   0.20,   1.75,  99.90,   2.19,   0.24,
01/24 15Z,   0.20,   2.14,  99.90,   2.58,   0.24,
01/24 16Z,   0.20,   2.54,  99.90,   2.97,   0.24,
01/24 17Z,   0.20,   2.86,  99.90,   3.30,   0.24,
01/24 18Z,   0.20,   3.05,  99.90,   3.49,   0.24,
01/24 19Z,   0.20,   3.10,  99.90,   3.54,   0.24,  (max)
01/24 20Z,   0.20,   2.98,  99.90,   3.42,   0.24,
01/24 21Z,   0.30,   2.68,  99.90,   3.21,   0.24,
01/24 22Z,   0.30,   2.25,  99.90,   2.79,   0.24,
01/24 23Z,   0.30,   1.80,  99.90,   2.34,   0.24,
01/25 00Z,   0.30,   1.40,  99.90,   1.94,   0.24,
01/25 01Z,   0.30,   1.16,  99.90,   1.69,   0.24,
01/25 02Z,   0.30,   1.08,  99.90,   1.62,   0.24,  (min)
01/25 03Z,   0.30,   1.13,  99.90,   1.67,   0.24,
01/25 04Z,   0.40,   1.28,  99.90,   1.92,   0.24,
01/25 05Z,   0.40,   1.48,  99.90,   2.11,   0.24,
01/25 06Z,   0.40,   1.65,  99.90,   2.29,   0.24,
01/25 07Z,   0.30,   1.79,  99.90,   2.33,   0.24,
01/25 08Z,   0.30,   1.88,  99.90,   2.41,   0.24,  (max)
01/25 09Z,   0.30,   1.87,  99.90,   2.41,   0.24,
01/25 10Z,   0.30,   1.79,  99.90,   2.32,   0.24,
01/25 11Z,   0.30,   1.71,  99.90,   2.25,   0.24,
01/25 12Z,   0.30,   1.71,  99.90,   2.24,   0.24,