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
#Seward, AK : 11/18/2025 13:20:10 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
11/16 18Z,   1.00,   3.83,   3.53,  99.90,  -1.30,
11/16 19Z,   1.00,   4.88,   4.62,  99.90,  -1.26,
11/16 20Z,   1.10,   5.00,   4.67,  99.90,  -1.43,  (max)
11/16 21Z,   1.10,   4.13,   3.68,  99.90,  -1.55,
11/16 22Z,   1.10,   2.39,   2.02,  99.90,  -1.47,
11/16 23Z,   1.10,   0.15,  -0.15,  99.90,  -1.40,
11/17 00Z,   1.10,  -2.05,  -2.25,  99.90,  -1.30,
11/17 01Z,   1.10,  -3.70,  -3.94,  99.90,  -1.34,
11/17 02Z,   1.00,  -4.46,  -4.66,  99.90,  -1.20,  (min)
11/17 03Z,   1.00,  -4.18,  -4.32,  99.90,  -1.14,
11/17 04Z,   1.10,  -2.96,  -3.12,  99.90,  -1.26,
11/17 05Z,   1.20,  -1.12,  -1.34,  99.90,  -1.42,
11/17 06Z,   1.10,   0.81,   0.62,  99.90,  -1.29,
11/17 07Z,   1.10,   2.33,   2.37,  99.90,  -1.06,
11/17 08Z,   1.20,   3.12,   3.15,  99.90,  -1.17,  (max)
11/17 09Z,   1.30,   3.04,   3.06,  99.90,  -1.28,
11/17 10Z,   1.30,   2.12,   2.19,  99.90,  -1.23,
11/17 11Z,   1.40,   0.62,   0.83,  99.90,  -1.19,
11/17 12Z,   1.30,  -0.98,  -0.79,  99.90,  -1.11,
11/17 13Z,   1.30,  -2.17,  -2.07,  99.90,  -1.20,
11/17 14Z,   1.20,  -2.57,  -2.51,  99.90,  -1.14,  (min)
11/17 15Z,   1.20,  -2.05,  -1.96,  99.90,  -1.11,
11/17 16Z,   1.20,  -0.66,  -0.48,  99.90,  -1.02,
11/17 17Z,   1.30,   1.30,   1.26,  99.90,  -1.34,
11/17 18Z,   1.20,   3.30,   3.17,  99.90,  -1.33,
11/17 19Z,   1.30,   4.82,   4.73,  99.90,  -1.39,
11/17 20Z,   1.40,   5.45,   5.33,  99.90,  -1.52,  (max)
11/17 21Z,   1.40,   5.06,   4.91,  99.90,  -1.55,
11/17 22Z,   1.40,   3.64,   3.57,  99.90,  -1.47,
11/17 23Z,   1.30,   1.43,   1.44,  99.90,  -1.29,
11/18 00Z,   1.40,  -1.09,  -1.09,  99.90,  -1.40,
11/18 01Z,   1.40,  -3.34,  -3.38,  99.90,  -1.44,
11/18 02Z,   1.30,  -4.79,  -4.84,  99.90,  -1.35,
11/18 03Z,   1.20,  -5.17,  -5.32,  99.90,  -1.35,  (min)
11/18 04Z,   1.10,  -4.43,  -4.59,  99.90,  -1.26,
11/18 05Z,   1.10,  -2.76,  -3.00,  99.90,  -1.34,
11/18 06Z,   1.30,  -0.62,  -0.94,  99.90,  -1.62,
11/18 07Z,   1.20,   1.41,   1.14,  99.90,  -1.47,
11/18 08Z,   1.20,   2.84,   2.68,  99.90,  -1.36,
11/18 09Z,   1.10,   3.42,   3.21,  99.90,  -1.31,  (max)
11/18 10Z,   1.00,   3.07,   2.84,  99.90,  -1.23,
11/18 11Z,   1.00,   1.92,   1.81,  99.90,  -1.11,
11/18 12Z,   1.00,   0.31,   0.14,  99.90,  -1.17,
11/18 13Z,   0.90,  -1.21,  -1.44,  99.90,  -1.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
11/18 14Z,   1.00,  -2.13,  99.90,  -2.28,  -1.15,
11/18 15Z,   0.80,  -2.15,  99.90,  -2.52,  -1.17,  (min)
11/18 16Z,   1.20,  -1.22,  99.90,  -1.20,  -1.19,
11/18 17Z,   1.10,   0.50,  99.90,   0.39,  -1.21,
11/18 18Z,   1.00,   2.58,  99.90,   2.35,  -1.22,
11/18 19Z,   1.00,   4.45,  99.90,   4.21,  -1.24,
11/18 20Z,   1.10,   5.58,  99.90,   5.42,  -1.26,  (max)
11/18 21Z,   1.00,   5.68,  99.90,   5.40,  -1.28,
11/18 22Z,   0.90,   4.69,  99.90,   4.29,  -1.30,
11/18 23Z,   0.60,   2.73,  99.90,   2.02,  -1.31,
11/19 00Z,   0.80,   0.16,  99.90,  -0.37,  -1.33,
11/19 01Z,   0.90,  -2.47,  99.90,  -2.92,  -1.35,
11/19 02Z,   0.70,  -4.55,  99.90,  -5.20,  -1.35,
11/19 03Z,   0.60,  -5.60,  99.90,  -6.35,  -1.35,  (min)
11/19 04Z,   0.70,  -5.46,  99.90,  -6.11,  -1.35,
11/19 05Z,   0.70,  -4.20,  99.90,  -4.84,  -1.35,
11/19 06Z,   0.60,  -2.13,  99.90,  -2.88,  -1.35,
11/19 07Z,   0.70,   0.19,  99.90,  -0.46,  -1.35,
11/19 08Z,   0.70,   2.15,  99.90,   1.50,  -1.35,
11/19 09Z,   0.60,   3.33,  99.90,   2.58,  -1.35,
11/19 10Z,   0.60,   3.57,  99.90,   2.82,  -1.35,  (max)
11/19 11Z,   0.60,   2.90,  99.90,   2.15,  -1.35,
11/19 12Z,   0.70,   1.53,  99.90,   0.88,  -1.35,
11/19 13Z,   0.60,  -0.10,  99.90,  -0.85,  -1.35,
11/19 14Z,   0.70,  -1.43,  99.90,  -2.08,  -1.35,
11/19 15Z,   0.70,  -1.98,  99.90,  -2.63,  -1.35,  (min)
11/19 16Z,   0.80,  -1.55,  99.90,  -2.10,  -1.35,
11/19 17Z,   0.80,  -0.21,  99.90,  -0.76,  -1.35,
11/19 18Z,   1.00,   1.73,  99.90,   1.38,  -1.35,
11/19 19Z,   1.30,   3.79,  99.90,   3.74,  -1.35,
11/19 20Z,   1.30,   5.36,  99.90,   5.31,  -1.35,
11/19 21Z,   1.20,   5.98,  99.90,   5.83,  -1.35,  (max)
11/19 22Z,   1.40,   5.48,  99.90,   5.53,  -1.35,
11/19 23Z,   1.60,   3.91,  99.90,   4.16,  -1.35,
11/20 00Z,   1.70,   1.53,  99.90,   1.88,  -1.35,
11/20 01Z,   1.60,  -1.24,  99.90,  -0.99,  -1.35,
11/20 02Z,   1.50,  -3.77,  99.90,  -3.62,  -1.35,
11/20 03Z,   1.60,  -5.48,  99.90,  -5.23,  -1.35,
11/20 04Z,   1.60,  -6.00,  99.90,  -5.75,  -1.35,  (min)
11/20 05Z,   1.50,  -5.28,  99.90,  -5.13,  -1.35,
11/20 06Z,   1.60,  -3.54,  99.90,  -3.29,  -1.35,
11/20 07Z,   1.70,  -1.22,  99.90,  -0.87,  -1.35,
11/20 08Z,   1.60,   1.09,  99.90,   1.34,  -1.35,
11/20 09Z,   1.60,   2.81,  99.90,   3.07,  -1.35,
11/20 10Z,   1.80,   3.63,  99.90,   4.08,  -1.35,  (max)
11/20 11Z,   1.90,   3.48,  99.90,   4.03,  -1.35,
11/20 12Z,   1.90,   2.50,  99.90,   3.05,  -1.35,
11/20 13Z,   1.90,   0.99,  99.90,   1.55,  -1.35,
11/20 14Z,   2.10,  -0.54,  99.90,   0.21,  -1.35,
11/20 15Z,   2.00,  -1.55,  99.90,  -0.90,  -1.35,
11/20 16Z,   1.90,  -1.65,  99.90,  -1.10,  -1.35,  (min)
11/20 17Z,   1.90,  -0.78,  99.90,  -0.23,  -1.35,
11/20 18Z,   2.00,   0.88,  99.90,   1.53,  -1.35,
11/20 19Z,   2.10,   2.91,  99.90,   3.66,  -1.35,
11/20 20Z,   1.90,   4.77,  99.90,   5.32,  -1.35,
11/20 21Z,   1.90,   5.90,  99.90,   6.45,  -1.35,
11/20 22Z,   1.90,   5.95,  99.90,   6.50,  -1.35,  (max)
11/20 23Z,   2.00,   4.87,  99.90,   5.52,  -1.35,
11/21 00Z,   2.00,   2.84,  99.90,   3.49,  -1.35,
11/21 01Z,   2.10,   0.19,  99.90,   0.94,  -1.35,
11/21 02Z,   2.10,  -2.56,  99.90,  -1.81,  -1.35,
11/21 03Z,   2.10,  -4.80,  99.90,  -4.05,  -1.35,
11/21 04Z,   2.20,  -6.00,  99.90,  -5.14,  -1.35,  (min)
11/21 05Z,   2.30,  -5.93,  99.90,  -4.98,  -1.35,
11/21 06Z,   2.40,  -4.70,  99.90,  -3.65,  -1.35,
11/21 07Z,   2.50,  -2.63,  99.90,  -1.48,  -1.35,
11/21 08Z,   2.50,  -0.23,  99.90,   0.92,  -1.35,
11/21 09Z,   2.50,   1.89,  99.90,   3.04,  -1.35,
11/21 10Z,   2.50,   3.25,  99.90,   4.40,  -1.35,
11/21 11Z,   2.50,   3.65,  99.90,   4.80,  -1.35,  (max)
11/21 12Z,   2.40,   3.14,  99.90,   4.19,  -1.35,
11/21 13Z,   2.30,   1.94,  99.90,   2.89,  -1.35,
11/21 14Z,   2.30,   0.42,  99.90,   1.38,  -1.35,
11/21 15Z,   2.20,  -0.89,  99.90,  -0.04,  -1.35,
11/21 16Z,   2.20,  -1.49,  99.90,  -0.64,  -1.35,  (min)
11/21 17Z,   2.10,  -1.14,  99.90,  -0.39,  -1.35,
11/21 18Z,   2.10,   0.11,  99.90,   0.86,  -1.35,
11/21 19Z,   2.10,   1.94,  99.90,   2.69,  -1.35,
11/21 20Z,   2.00,   3.89,  99.90,   4.55,  -1.35,
11/21 21Z,   1.90,   5.42,  99.90,   5.97,  -1.35,
11/21 22Z,   1.80,   6.03,  99.90,   6.48,  -1.35,  (max)
11/21 23Z,   1.80,   5.52,  99.90,   5.97,  -1.35,
11/22 00Z,   1.70,   3.96,  99.90,   4.31,  -1.35,
11/22 01Z,   1.60,   1.62,  99.90,   1.87,  -1.35,
11/22 02Z,   1.60,  -1.10,  99.90,  -0.85,  -1.35,
11/22 03Z,   1.50,  -3.65,  99.90,  -3.50,  -1.35,
11/22 04Z,   1.60,  -5.44,  99.90,  -5.19,  -1.35,
11/22 05Z,   1.50,  -6.08,  99.90,  -5.93,  -1.35,  (min)
11/22 06Z,   1.60,  -5.47,  99.90,  -5.22,  -1.35,