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
#Valdez, AK : 10/17/2026 11:23:01 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/15 12Z,   1.40,   9.55,   8.99,  99.90,  -1.96,
10/15 13Z,   1.40,   9.83,   9.48,  99.90,  -1.75,  (max)
10/15 14Z,   1.50,   9.34,   9.05,  99.90,  -1.79,
10/15 15Z,   1.40,   8.23,   7.98,  99.90,  -1.65,
10/15 16Z,   1.50,   6.79,   6.60,  99.90,  -1.69,
10/15 17Z,   1.50,   5.44,   5.43,  99.90,  -1.51,
10/15 18Z,   2.20,   4.67,   4.90,  99.90,  -1.97,  (min)
10/15 19Z,   2.10,   4.87,   5.04,  99.90,  -1.93,
10/15 20Z,   1.90,   6.13,   6.06,  99.90,  -1.97,
10/15 21Z,   1.80,   8.09,   7.78,  99.90,  -2.11,
10/15 22Z,   2.00,  10.10,   9.43,  99.90,  -2.67,
10/15 23Z,   2.20,  11.51,  10.91,  99.90,  -2.80,
10/16 00Z,   2.00,  11.99,  11.58,  99.90,  -2.41,  (max)
10/16 01Z,   1.70,  11.52,  11.31,  99.90,  -1.91,
10/16 02Z,   1.60,  10.23,   9.99,  99.90,  -1.84,
10/16 03Z,   1.40,   8.31,   7.96,  99.90,  -1.75,
10/16 04Z,   1.30,   6.03,   5.57,  99.90,  -1.76,
10/16 05Z,   1.20,   3.75,   3.36,  99.90,  -1.59,
10/16 06Z,   1.50,   1.97,   1.68,  99.90,  -1.79,
10/16 07Z,   1.30,   1.14,   0.97,  99.90,  -1.47,  (min)
10/16 08Z,   1.10,   1.51,   1.35,  99.90,  -1.26,
10/16 09Z,   0.90,   2.95,   2.66,  99.90,  -1.19,
10/16 10Z,   0.90,   4.92,   4.46,  99.90,  -1.36,
10/16 11Z,   1.00,   6.80,   6.28,  99.90,  -1.52,
10/16 12Z,   1.40,   8.17,   7.66,  99.90,  -1.91,
10/16 13Z,   1.40,   8.89,   8.54,  99.90,  -1.75,
10/16 14Z,   1.40,   9.00,   8.79,  99.90,  -1.61,  (max)
10/16 15Z,   1.40,   8.57,   8.40,  99.90,  -1.57,
10/16 16Z,   1.40,   7.71,   7.44,  99.90,  -1.67,
10/16 17Z,   1.40,   6.65,   6.28,  99.90,  -1.77,
10/16 18Z,   1.30,   5.75,   5.32,  99.90,  -1.73,
10/16 19Z,   1.10,   5.39,   4.96,  99.90,  -1.53,  (min)
10/16 20Z,   1.10,   5.87,   5.39,  99.90,  -1.58,
10/16 21Z,   1.20,   7.13,   6.55,  99.90,  -1.78,
10/16 22Z,   1.30,   8.78,   8.13,  99.90,  -1.95,
10/16 23Z,   1.40,  10.23,   9.53,  99.90,  -2.10,
10/17 00Z,   1.30,  11.03,  10.50,  99.90,  -1.83,
10/17 01Z,   1.00,  11.07,  10.81,  99.90,  -1.26,  (max)
10/17 02Z,   0.80,  10.42,  10.34,  99.90,  -0.88,
10/17 03Z,   0.70,   9.21,   9.14,  99.90,  -0.77,
10/17 04Z,   0.80,   7.56,   7.41,  99.90,  -0.95,
10/17 05Z,   1.00,   5.65,   5.42,  99.90,  -1.23,
10/17 06Z,   1.20,   3.82,   3.56,  99.90,  -1.46,
10/17 07Z,   1.40,   2.47,   2.24,  99.90,  -1.63,
10/17 08Z,   1.50,   1.98,   1.77,  99.90,  -1.71,  (min)
10/17 09Z,   1.50,   2.48,   2.27,  99.90,  -1.71,
10/17 10Z,   1.40,   3.74,   3.39,  99.90,  -1.75,
10/17 11Z,   1.20,   5.28,   4.86,  99.90,  -1.62,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/17 12Z,   1.10,   6.66,  99.90,   6.13,  -1.63,
10/17 13Z,   1.20,   7.64,  99.90,   7.20,  -1.64,
10/17 14Z,   1.20,   8.21,  99.90,   7.76,  -1.65,
10/17 15Z,   1.30,   8.40,  99.90,   8.04,  -1.66,  (max)
10/17 16Z,   1.20,   8.19,  99.90,   7.72,  -1.66,
10/17 17Z,   1.20,   7.61,  99.90,   7.14,  -1.67,
10/17 18Z,   1.20,   6.85,  99.90,   6.36,  -1.68,
10/17 19Z,   1.30,   6.22,  99.90,   5.83,  -1.69,
10/17 20Z,   1.40,   6.08,  99.90,   5.78,  -1.70,  (min)
10/17 21Z,   1.50,   6.59,  99.90,   6.39,  -1.71,
10/17 22Z,   1.60,   7.64,  99.90,   7.53,  -1.72,
10/17 23Z,   1.70,   8.84,  99.90,   8.82,  -1.72,
10/18 00Z,   1.70,   9.77,  99.90,   9.74,  -1.72,
10/18 01Z,   1.60,  10.18,  99.90,  10.06,  -1.72,  (max)
10/18 02Z,   1.40,  10.09,  99.90,   9.76,  -1.72,
10/18 03Z,   1.20,   9.56,  99.90,   9.04,  -1.72,
10/18 04Z,   1.10,   8.62,  99.90,   8.00,  -1.72,
10/18 05Z,   1.10,   7.28,  99.90,   6.66,  -1.72,
10/18 06Z,   1.10,   5.69,  99.90,   5.06,  -1.72,
10/18 07Z,   1.10,   4.16,  99.90,   3.53,  -1.72,
10/18 08Z,   1.00,   3.06,  99.90,   2.34,  -1.72,
10/18 09Z,   1.00,   2.69,  99.90,   1.97,  -1.72,  (min)
10/18 10Z,   1.00,   3.09,  99.90,   2.37,  -1.72,
10/18 11Z,   1.00,   4.04,  99.90,   3.32,  -1.72,
10/18 12Z,   1.10,   5.18,  99.90,   4.56,  -1.72,
10/18 13Z,   1.20,   6.24,  99.90,   5.72,  -1.72,
10/18 14Z,   1.20,   7.13,  99.90,   6.60,  -1.72,
10/18 15Z,   1.10,   7.83,  99.90,   7.20,  -1.72,
10/18 16Z,   1.00,   8.25,  99.90,   7.52,  -1.72,  (max)
10/18 17Z,   0.80,   8.26,  99.90,   7.34,  -1.72,
10/18 18Z,   0.70,   7.85,  99.90,   6.83,  -1.72,
10/18 19Z,   0.70,   7.22,  99.90,   6.19,  -1.72,
10/18 20Z,   0.70,   6.67,  99.90,   5.65,  -1.72,
10/18 21Z,   0.80,   6.51,  99.90,   5.59,  -1.72,  (min)
10/18 22Z,   0.80,   6.84,  99.90,   5.92,  -1.72,
10/18 23Z,   0.80,   7.54,  99.90,   6.61,  -1.72,
10/19 00Z,   0.80,   8.32,  99.90,   7.39,  -1.72,
10/19 01Z,   0.80,   8.93,  99.90,   8.00,  -1.72,
10/19 02Z,   0.70,   9.27,  99.90,   8.24,  -1.72,  (max)
10/19 03Z,   0.60,   9.35,  99.90,   8.23,  -1.72,
10/19 04Z,   0.60,   9.13,  99.90,   8.01,  -1.72,
10/19 05Z,   0.50,   8.49,  99.90,   7.26,  -1.72,
10/19 06Z,   0.50,   7.37,  99.90,   6.15,  -1.72,
10/19 07Z,   0.60,   5.95,  99.90,   4.83,  -1.72,
10/19 08Z,   0.60,   4.55,  99.90,   3.42,  -1.72,
10/19 09Z,   0.70,   3.51,  99.90,   2.48,  -1.72,
10/19 10Z,   0.80,   3.07,  99.90,   2.14,  -1.72,  (min)
10/19 11Z,   0.80,   3.25,  99.90,   2.33,  -1.72,
10/19 12Z,   0.70,   3.92,  99.90,   2.89,  -1.72,
10/19 13Z,   0.70,   4.85,  99.90,   3.82,  -1.72,
10/19 14Z,   0.60,   5.90,  99.90,   4.77,  -1.72,
10/19 15Z,   0.60,   6.98,  99.90,   5.86,  -1.72,
10/19 16Z,   0.50,   7.96,  99.90,   6.74,  -1.72,
10/19 17Z,   0.50,   8.61,  99.90,   7.38,  -1.72,
10/19 18Z,   0.50,   8.70,  99.90,   7.48,  -1.72,  (max)
10/19 19Z,   0.70,   8.27,  99.90,   7.25,  -1.72,
10/19 20Z,   0.90,   7.55,  99.90,   6.73,  -1.72,
10/19 21Z,   1.00,   6.87,  99.90,   6.14,  -1.72,
10/19 22Z,   1.10,   6.48,  99.90,   5.86,  -1.72,  (min)
10/19 23Z,   1.10,   6.49,  99.90,   5.87,  -1.72,
10/20 00Z,   1.10,   6.85,  99.90,   6.22,  -1.72,
10/20 01Z,   1.10,   7.40,  99.90,   6.77,  -1.72,
10/20 02Z,   1.20,   8.01,  99.90,   7.48,  -1.72,
10/20 03Z,   1.30,   8.60,  99.90,   8.17,  -1.72,
10/20 04Z,   1.40,   9.05,  99.90,   8.72,  -1.72,
10/20 05Z,   1.40,   9.15,  99.90,   8.83,  -1.72,  (max)
10/20 06Z,   1.30,   8.70,  99.90,   8.28,  -1.72,
10/20 07Z,   1.10,   7.66,  99.90,   7.03,  -1.72,
10/20 08Z,   1.10,   6.24,  99.90,   5.61,  -1.72,
10/20 09Z,   1.10,   4.79,  99.90,   4.16,  -1.72,
10/20 10Z,   1.20,   3.65,  99.90,   3.12,  -1.72,
10/20 11Z,   1.40,   3.03,  99.90,   2.70,  -1.72,
10/20 12Z,   1.40,   3.02,  99.90,   2.70,  -1.72,  (min)
10/20 13Z,   1.40,   3.59,  99.90,   3.27,  -1.72,
10/20 14Z,   1.30,   4.62,  99.90,   4.20,  -1.72,
10/20 15Z,   1.20,   5.96,  99.90,   5.44,  -1.72,
10/20 16Z,   1.10,   7.41,  99.90,   6.79,  -1.72,
10/20 17Z,   1.20,   8.66,  99.90,   8.14,  -1.72,
10/20 18Z,   1.60,   9.36,  99.90,   9.23,  -1.72,
10/20 19Z,   1.90,   9.32,  99.90,   9.50,  -1.72,  (max)
10/20 20Z,   2.30,   8.65,  99.90,   9.22,  -1.72,
10/20 21Z,   2.60,   7.63,  99.90,   8.51,  -1.72,
10/20 22Z,   2.50,   6.61,  99.90,   7.39,  -1.72,
10/20 23Z,   2.30,   5.86,  99.90,   6.44,  -1.72,
10/21 00Z,   2.00,   5.55,  99.90,   5.83,  -1.72,