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
#Adak Island, AK : 04/13/2026 16:21:51 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/12 00Z,  -0.80,   1.74,   1.02,  99.90,   0.08,
04/12 01Z,  -0.80,   1.14,   0.45,  99.90,   0.11,
04/12 02Z,  -0.90,   0.58,  -0.17,  99.90,   0.15,
04/12 03Z,  -0.90,   0.15,  -0.53,  99.90,   0.22,
04/12 04Z,  -0.90,  -0.07,  -0.63,  99.90,   0.34,  (min)
04/12 05Z,  -0.90,  -0.07,  -0.57,  99.90,   0.40,
04/12 06Z,  -0.90,   0.16,  -0.33,  99.90,   0.41,
04/12 07Z,  -0.90,   0.56,   0.04,  99.90,   0.38,
04/12 08Z,  -0.90,   1.08,   0.68,  99.90,   0.50,
04/12 09Z,  -0.90,   1.62,   1.35,  99.90,   0.63,
04/12 10Z,  -1.00,   2.11,   1.80,  99.90,   0.69,
04/12 11Z,  -1.00,   2.48,   2.17,  99.90,   0.69,
04/12 12Z,  -1.00,   2.71,   2.41,  99.90,   0.70,
04/12 13Z,  -1.00,   2.81,   2.51,  99.90,   0.70,  (max)
04/12 14Z,  -1.00,   2.83,   2.44,  99.90,   0.61,
04/12 15Z,  -0.90,   2.82,   2.42,  99.90,   0.50,
04/12 16Z,  -0.90,   2.82,   2.38,  99.90,   0.46,  (min)
04/12 17Z,  -0.90,   2.87,   2.44,  99.90,   0.47,
04/12 18Z,  -0.90,   2.95,   2.51,  99.90,   0.46,  (max)
04/12 19Z,  -0.90,   3.05,   2.42,  99.90,   0.27,  (min)
04/12 20Z,  -0.90,   3.11,   2.56,  99.90,   0.35,  (max)
04/12 21Z,  -0.90,   3.08,   2.54,  99.90,   0.36,
04/12 22Z,  -0.80,   2.91,   2.42,  99.90,   0.31,
04/12 23Z,  -0.80,   2.60,   2.09,  99.90,   0.29,
04/13 00Z,  -0.80,   2.16,   1.63,  99.90,   0.27,
04/13 01Z,  -0.80,   1.64,   1.10,  99.90,   0.26,
04/13 02Z,  -0.80,   1.11,   0.64,  99.90,   0.33,
04/13 03Z,  -0.70,   0.66,   0.23,  99.90,   0.27,
04/13 04Z,  -0.60,   0.35,  -0.04,  99.90,   0.21,  (min)
04/13 05Z,  -0.60,   0.23,  -0.03,  99.90,   0.34,
04/13 06Z,  -0.60,   0.31,   0.09,  99.90,   0.38,
04/13 07Z,  -0.60,   0.59,   0.39,  99.90,   0.40,
04/13 08Z,  -0.50,   1.00,   0.84,  99.90,   0.34,
04/13 09Z,  -0.50,   1.48,   1.41,  99.90,   0.43,
04/13 10Z,  -0.50,   1.93,   1.87,  99.90,   0.44,
04/13 11Z,  -0.50,   2.30,   2.24,  99.90,   0.44,
04/13 12Z,  -0.50,   2.54,   2.45,  99.90,   0.41,
04/13 13Z,  -0.40,   2.64,   2.59,  99.90,   0.35,
04/13 14Z,  -0.40,   2.63,   2.60,  99.90,   0.37,  (max)
04/13 15Z,  -0.40,   2.56,   2.53,  99.90,   0.37,
04/13 16Z,  -0.40,   2.50,   2.45,  99.90,   0.35,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/13 17Z,  -0.40,   2.48,  99.90,   2.42,   0.34,  (min)
04/13 18Z,  -0.40,   2.52,  99.90,   2.45,   0.33,
04/13 19Z,  -0.40,   2.62,  99.90,   2.53,   0.31,
04/13 20Z,  -0.40,   2.74,  99.90,   2.64,   0.30,
04/13 21Z,  -0.40,   2.82,  99.90,   2.70,   0.29,  (max)
04/13 22Z,  -0.40,   2.81,  99.90,   2.69,   0.27,
04/13 23Z,  -0.40,   2.68,  99.90,   2.54,   0.26,
04/14 00Z,  -0.40,   2.42,  99.90,   2.27,   0.25,
04/14 01Z,  -0.40,   2.05,  99.90,   1.89,   0.23,
04/14 02Z,  -0.40,   1.63,  99.90,   1.45,   0.22,
04/14 03Z,  -0.40,   1.21,  99.90,   1.02,   0.21,
04/14 04Z,  -0.40,   0.88,  99.90,   0.67,   0.19,
04/14 05Z,  -0.40,   0.69,  99.90,   0.48,   0.19,
04/14 06Z,  -0.40,   0.67,  99.90,   0.46,   0.19,  (min)
04/14 07Z,  -0.40,   0.83,  99.90,   0.62,   0.19,
04/14 08Z,  -0.40,   1.13,  99.90,   0.93,   0.19,
04/14 09Z,  -0.50,   1.52,  99.90,   1.22,   0.19,
04/14 10Z,  -0.50,   1.92,  99.90,   1.61,   0.19,
04/14 11Z,  -0.50,   2.26,  99.90,   1.95,   0.19,
04/14 12Z,  -0.50,   2.48,  99.90,   2.17,   0.19,
04/14 13Z,  -0.40,   2.56,  99.90,   2.35,   0.19,  (max)
04/14 14Z,  -0.40,   2.50,  99.90,   2.30,   0.19,
04/14 15Z,  -0.40,   2.36,  99.90,   2.15,   0.19,
04/14 16Z,  -0.40,   2.19,  99.90,   1.98,   0.19,
04/14 17Z,  -0.40,   2.05,  99.90,   1.85,   0.19,
04/14 18Z,  -0.40,   2.00,  99.90,   1.79,   0.19,  (min)
04/14 19Z,  -0.40,   2.04,  99.90,   1.83,   0.19,
04/14 20Z,  -0.40,   2.15,  99.90,   1.95,   0.19,
04/14 21Z,  -0.40,   2.31,  99.90,   2.10,   0.19,
04/14 22Z,  -0.40,   2.44,  99.90,   2.23,   0.19,
04/14 23Z,  -0.40,   2.50,  99.90,   2.30,   0.19,  (max)
04/15 00Z,  -0.40,   2.46,  99.90,   2.25,   0.19,
04/15 01Z,  -0.40,   2.29,  99.90,   2.09,   0.19,
04/15 02Z,  -0.40,   2.04,  99.90,   1.83,   0.19,
04/15 03Z,  -0.40,   1.74,  99.90,   1.53,   0.19,
04/15 04Z,  -0.40,   1.45,  99.90,   1.25,   0.19,
04/15 05Z,  -0.30,   1.25,  99.90,   1.14,   0.19,
04/15 06Z,  -0.30,   1.17,  99.90,   1.07,   0.19,  (min)
04/15 07Z,  -0.30,   1.24,  99.90,   1.13,   0.19,
04/15 08Z,  -0.30,   1.44,  99.90,   1.34,   0.19,
04/15 09Z,  -0.20,   1.75,  99.90,   1.74,   0.19,
04/15 10Z,  -0.20,   2.08,  99.90,   2.07,   0.19,
04/15 11Z,  -0.20,   2.38,  99.90,   2.37,   0.19,
04/15 12Z,  -0.20,   2.57,  99.90,   2.56,   0.19,
04/15 13Z,  -0.20,   2.62,  99.90,   2.61,   0.19,  (max)
04/15 14Z,  -0.20,   2.52,  99.90,   2.51,   0.19,
04/15 15Z,  -0.20,   2.29,  99.90,   2.28,   0.19,
04/15 16Z,  -0.20,   1.99,  99.90,   1.99,   0.19,
04/15 17Z,  -0.20,   1.70,  99.90,   1.70,   0.19,
04/15 18Z,  -0.20,   1.49,  99.90,   1.48,   0.19,
04/15 19Z,  -0.20,   1.39,  99.90,   1.38,   0.19,  (min)
04/15 20Z,  -0.20,   1.43,  99.90,   1.42,   0.19,
04/15 21Z,  -0.20,   1.58,  99.90,   1.57,   0.19,
04/15 22Z,  -0.20,   1.80,  99.90,   1.79,   0.19,
04/15 23Z,  -0.20,   2.02,  99.90,   2.02,   0.19,
04/16 00Z,  -0.20,   2.19,  99.90,   2.19,   0.19,
04/16 01Z,  -0.20,   2.27,  99.90,   2.27,   0.19,  (max)
04/16 02Z,  -0.20,   2.25,  99.90,   2.24,   0.19,
04/16 03Z,  -0.20,   2.14,  99.90,   2.13,   0.19,
04/16 04Z,  -0.10,   1.98,  99.90,   2.08,   0.19,
04/16 05Z,  -0.10,   1.84,  99.90,   1.93,   0.19,
04/16 06Z,  -0.10,   1.75,  99.90,   1.84,   0.19,  (min)
04/16 07Z,  -0.10,   1.76,  99.90,   1.86,   0.19,
04/16 08Z,  -0.20,   1.89,  99.90,   1.88,   0.19,
04/16 09Z,  -0.20,   2.11,  99.90,   2.10,   0.19,
04/16 10Z,  -0.20,   2.38,  99.90,   2.37,   0.19,
04/16 11Z,  -0.20,   2.63,  99.90,   2.63,   0.19,
04/16 12Z,  -0.20,   2.81,  99.90,   2.80,   0.19,
04/16 13Z,  -0.20,   2.84,  99.90,   2.84,   0.19,  (max)
04/16 14Z,  -0.20,   2.71,  99.90,   2.70,   0.19,
04/16 15Z,  -0.20,   2.42,  99.90,   2.41,   0.19,
04/16 16Z,  -0.30,   2.00,  99.90,   1.90,   0.19,
04/16 17Z,  -0.30,   1.54,  99.90,   1.44,   0.19,
04/16 18Z,  -0.30,   1.13,  99.90,   1.02,   0.19,
04/16 19Z,  -0.30,   0.82,  99.90,   0.72,   0.19,
04/16 20Z,  -0.30,   0.69,  99.90,   0.58,   0.19,  (min)
04/16 21Z,  -0.30,   0.74,  99.90,   0.63,   0.19,
04/16 22Z,  -0.40,   0.95,  99.90,   0.74,   0.19,
04/16 23Z,  -0.40,   1.27,  99.90,   1.06,   0.19,
04/17 00Z,  -0.40,   1.62,  99.90,   1.41,   0.19,
04/17 01Z,  -0.50,   1.94,  99.90,   1.63,   0.19,
04/17 02Z,  -0.50,   2.18,  99.90,   1.87,   0.19,
04/17 03Z,  -0.50,   2.31,  99.90,   2.01,   0.19,
04/17 04Z,  -0.50,   2.36,  99.90,   2.05,   0.19,  (max)
04/17 05Z,  -0.50,   2.34,  99.90,   2.03,   0.19,
04/17 06Z,  -0.50,   2.31,  99.90,   2.00,   0.19,
04/17 07Z,  99.90,   2.32,  99.90,  99.90,   0.19,
04/17 08Z,  99.90,   2.39,  99.90,  99.90,   0.19,
04/17 09Z,  99.90,   2.54,  99.90,  99.90,   0.19,
04/17 10Z,  99.90,   2.75,  99.90,  99.90,   0.19,
04/17 11Z,  99.90,   2.97,  99.90,  99.90,   0.19,
04/17 12Z,  99.90,   3.13,  99.90,  99.90,   0.19,