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
#Ketchikan, AK : 10/17/2026 15:22:02 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/16 00Z,   0.30,  14.66,  15.11,  99.90,   0.15,  (max)
10/16 01Z,   0.30,  13.55,  14.21,  99.90,   0.36,
10/16 02Z,   0.40,  11.24,  11.95,  99.90,   0.31,
10/16 03Z,   0.40,   8.20,   8.97,  99.90,   0.37,
10/16 04Z,   0.40,   5.12,   6.00,  99.90,   0.48,
10/16 05Z,   0.50,   2.71,   3.53,  99.90,   0.32,
10/16 06Z,   0.30,   1.45,   2.28,  99.90,   0.53,  (min)
10/16 07Z,   0.30,   1.56,   2.41,  99.90,   0.55,
10/16 08Z,   0.50,   2.90,   3.80,  99.90,   0.40,
10/16 09Z,   0.60,   5.07,   5.89,  99.90,   0.22,
10/16 10Z,   0.70,   7.55,   8.64,  99.90,   0.39,
10/16 11Z,   0.80,   9.79,  10.92,  99.90,   0.33,
10/16 12Z,   0.60,  11.32,  12.60,  99.90,   0.68,
10/16 13Z,   0.60,  11.83,  12.94,  99.90,   0.51,  (max)
10/16 14Z,   0.70,  11.29,  12.23,  99.90,   0.24,
10/16 15Z,   0.70,   9.93,  10.60,  99.90,  -0.03,
10/16 16Z,   0.60,   8.24,   8.69,  99.90,  -0.15,
10/16 17Z,   0.50,   6.76,   7.28,  99.90,   0.02,
10/16 18Z,   0.30,   5.99,   6.55,  99.90,   0.26,  (min)
10/16 19Z,   0.30,   6.19,   6.81,  99.90,   0.32,
10/16 20Z,   0.30,   7.32,   7.92,  99.90,   0.30,
10/16 21Z,   0.30,   9.08,   9.57,  99.90,   0.19,
10/16 22Z,   0.30,  11.03,  11.27,  99.90,  -0.06,
10/16 23Z,   0.30,  12.66,  12.90,  99.90,  -0.06,
10/17 00Z,   0.00,  13.54,  13.89,  99.90,   0.35,
10/17 01Z,   0.00,  13.37,  13.94,  99.90,   0.57,  (max)
10/17 02Z,   0.10,  12.11,  12.75,  99.90,   0.54,
10/17 03Z,   0.20,  10.00,  10.73,  99.90,   0.53,
10/17 04Z,   0.20,   7.46,   8.10,  99.90,   0.44,
10/17 05Z,   0.20,   5.06,   5.65,  99.90,   0.39,
10/17 06Z,   0.00,   3.30,   3.90,  99.90,   0.60,
10/17 07Z,   0.00,   2.51,   2.86,  99.90,   0.35,  (min)
10/17 08Z,   0.10,   2.78,   3.14,  99.90,   0.26,
10/17 09Z,   0.10,   3.95,   4.32,  99.90,   0.27,
10/17 10Z,   0.20,   5.71,   6.12,  99.90,   0.21,
10/17 11Z,   0.30,   7.66,   8.19,  99.90,   0.23,
10/17 12Z,   0.40,   9.39,   9.96,  99.90,   0.17,
10/17 13Z,   0.40,  10.54,  11.12,  99.90,   0.18,
10/17 14Z,   0.30,  10.91,  11.35,  99.90,   0.14,  (max)
10/17 15Z,   0.30,  10.51,  10.82,  99.90,   0.01,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
10/17 16Z,   0.20,   9.53,  99.90,   9.75,   0.03,
10/17 17Z,   0.10,   8.34,  99.90,   8.48,   0.04,
10/17 18Z,   0.10,   7.35,  99.90,   7.50,   0.05,
10/17 19Z,   0.10,   6.89,  99.90,   7.06,   0.07,  (min)
10/17 20Z,   0.00,   7.12,  99.90,   7.21,   0.08,
10/17 21Z,   0.10,   8.01,  99.90,   8.21,   0.10,
10/17 22Z,   0.10,   9.34,  99.90,   9.55,   0.11,
10/17 23Z,   0.20,  10.76,  99.90,  11.09,   0.12,
10/18 00Z,   0.30,  11.91,  99.90,  12.35,   0.14,
10/18 01Z,   0.30,  12.47,  99.90,  12.92,   0.15,  (max)
10/18 02Z,   0.20,  12.21,  99.90,  12.58,   0.17,
10/18 03Z,   0.10,  11.13,  99.90,  11.41,   0.18,
10/18 04Z,   0.00,   9.41,  99.90,   9.59,   0.18,
10/18 05Z,   0.00,   7.40,  99.90,   7.58,   0.18,
10/18 06Z,  -0.10,   5.51,  99.90,   5.59,   0.18,
10/18 07Z,  -0.20,   4.10,  99.90,   4.08,   0.18,
10/18 08Z,  -0.20,   3.42,  99.90,   3.40,   0.18,  (min)
10/18 09Z,  -0.20,   3.55,  99.90,   3.53,   0.18,
10/18 10Z,  -0.20,   4.40,  99.90,   4.38,   0.18,
10/18 11Z,  -0.20,   5.77,  99.90,   5.75,   0.18,
10/18 12Z,  -0.20,   7.35,  99.90,   7.33,   0.18,
10/18 13Z,  -0.20,   8.84,  99.90,   8.82,   0.18,
10/18 14Z,  -0.10,   9.94,  99.90,  10.02,   0.18,
10/18 15Z,  -0.10,  10.45,  99.90,  10.53,   0.18,  (max)
10/18 16Z,  -0.20,  10.34,  99.90,  10.32,   0.18,
10/18 17Z,  -0.30,   9.72,  99.90,   9.60,   0.18,
10/18 18Z,  -0.30,   8.84,  99.90,   8.72,   0.18,
10/18 19Z,  -0.40,   8.01,  99.90,   7.79,   0.18,
10/18 20Z,  -0.40,   7.50,  99.90,   7.28,   0.18,
10/18 21Z,  -0.40,   7.48,  99.90,   7.26,   0.18,  (min)
10/18 22Z,  -0.40,   7.98,  99.90,   7.76,   0.18,
10/18 23Z,  -0.40,   8.88,  99.90,   8.67,   0.18,
10/19 00Z,  -0.30,   9.97,  99.90,   9.86,   0.18,
10/19 01Z,  -0.40,  10.95,  99.90,  10.73,   0.18,
10/19 02Z,  -0.40,  11.53,  99.90,  11.31,   0.18,  (max)
10/19 03Z,  -0.40,  11.49,  99.90,  11.27,   0.18,
10/19 04Z,  -0.40,  10.77,  99.90,  10.55,   0.18,
10/19 05Z,  -0.50,   9.46,  99.90,   9.14,   0.18,
10/19 06Z,  -0.50,   7.80,  99.90,   7.48,   0.18,
10/19 07Z,  -0.50,   6.12,  99.90,   5.80,   0.18,
10/19 08Z,  -0.60,   4.73,  99.90,   4.31,   0.18,
10/19 09Z,  -0.50,   3.89,  99.90,   3.57,   0.18,
10/19 10Z,  -0.50,   3.75,  99.90,   3.43,   0.18,  (min)
10/19 11Z,  -0.40,   4.31,  99.90,   4.09,   0.18,
10/19 12Z,  -0.40,   5.46,  99.90,   5.24,   0.18,
10/19 13Z,  -0.30,   6.97,  99.90,   6.85,   0.18,
10/19 14Z,  -0.30,   8.54,  99.90,   8.42,   0.18,
10/19 15Z,  -0.30,   9.85,  99.90,   9.73,   0.18,
10/19 16Z,  -0.40,  10.65,  99.90,  10.43,   0.18,
10/19 17Z,  -0.40,  10.80,  99.90,  10.58,   0.18,  (max)
10/19 18Z,  -0.50,  10.33,  99.90,  10.01,   0.18,
10/19 19Z,  -0.50,   9.44,  99.90,   9.12,   0.18,
10/19 20Z,  -0.60,   8.40,  99.90,   7.98,   0.18,
10/19 21Z,  -0.50,   7.53,  99.90,   7.21,   0.18,
10/19 22Z,  -0.50,   7.10,  99.90,   6.78,   0.18,  (min)
10/19 23Z,  -0.40,   7.23,  99.90,   7.01,   0.18,
10/20 00Z,  -0.30,   7.92,  99.90,   7.80,   0.18,
10/20 01Z,  -0.20,   8.98,  99.90,   8.96,   0.18,
10/20 02Z,  -0.20,  10.12,  99.90,  10.11,   0.18,
10/20 03Z,  -0.20,  11.02,  99.90,  11.00,   0.18,
10/20 04Z,  -0.30,  11.37,  99.90,  11.25,   0.18,  (max)
10/20 05Z,  -0.40,  11.01,  99.90,  10.79,   0.18,
10/20 06Z,  -0.50,   9.94,  99.90,   9.62,   0.18,
10/20 07Z,  -0.50,   8.35,  99.90,   8.03,   0.18,
10/20 08Z,  -0.50,   6.55,  99.90,   6.23,   0.18,
10/20 09Z,  -0.40,   4.92,  99.90,   4.70,   0.18,
10/20 10Z,  -0.30,   3.79,  99.90,   3.67,   0.18,
10/20 11Z,  -0.20,   3.42,  99.90,   3.40,   0.18,  (min)
10/20 12Z,  -0.10,   3.90,  99.90,   3.98,   0.18,
10/20 13Z,  -0.10,   5.14,  99.90,   5.22,   0.18,
10/20 14Z,  -0.10,   6.90,  99.90,   6.98,   0.18,
10/20 15Z,  -0.10,   8.81,  99.90,   8.89,   0.18,
10/20 16Z,  -0.10,  10.46,  99.90,  10.54,   0.18,
10/20 17Z,  -0.20,  11.50,  99.90,  11.48,   0.18,
10/20 18Z,  -0.20,  11.69,  99.90,  11.67,   0.18,  (max)
10/20 19Z,  -0.20,  11.05,  99.90,  11.03,   0.18,
10/20 20Z,  -0.10,   9.76,  99.90,   9.84,   0.18,
10/20 21Z,   0.00,   8.21,  99.90,   8.39,   0.18,
10/20 22Z,   0.00,   6.83,  99.90,   7.01,   0.18,
10/20 23Z,   0.20,   6.00,  99.90,   6.38,   0.18,  (min)
10/21 00Z,   0.30,   5.97,  99.90,   6.45,   0.18,
10/21 01Z,   0.30,   6.74,  99.90,   7.22,   0.18,
10/21 02Z,   0.30,   8.12,  99.90,   8.60,   0.18,
10/21 03Z,   0.30,   9.72,  99.90,  10.20,   0.18,
10/21 04Z,   0.30,  11.10,  99.90,  11.58,   0.18,
10/21 05Z,   0.30,  11.83,  99.90,  12.31,   0.18,  (max)
10/21 06Z,   0.20,  11.66,  99.90,  12.04,   0.18,
10/21 07Z,  99.90,  10.56,  99.90,  99.90,   0.18,
10/21 08Z,  99.90,   8.74,  99.90,  99.90,   0.18,
10/21 09Z,  99.90,   6.58,  99.90,  99.90,   0.18,
10/21 10Z,  99.90,   4.58,  99.90,  99.90,   0.18,
10/21 11Z,  99.90,   3.22,  99.90,  99.90,   0.18,
10/21 12Z,  99.90,   2.82,  99.90,  99.90,   0.18,