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 : 07/18/2026 05:22:44 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 12Z,  -0.50,  15.07,  14.88,  99.90,   0.31,
07/16 13Z,  -0.50,  10.71,  10.60,  99.90,   0.39,
07/16 14Z,  -0.50,   5.41,   5.46,  99.90,   0.55,
07/16 15Z,  -0.50,   0.47,   0.66,  99.90,   0.69,
07/16 16Z,  -0.50,  -2.91,  -2.71,  99.90,   0.70,
07/16 17Z,  -0.50,  -3.95,  -3.72,  99.90,   0.73,  (min)
07/16 18Z,  -0.50,  -2.50,  -2.46,  99.90,   0.54,
07/16 19Z,  -0.50,   0.95,   0.83,  99.90,   0.38,
07/16 20Z,  -0.50,   5.54,   5.34,  99.90,   0.30,
07/16 21Z,  -0.50,  10.19,  10.00,  99.90,   0.31,
07/16 22Z,  -0.50,  13.85,  13.73,  99.90,   0.38,
07/16 23Z,  -0.50,  15.72,  15.74,  99.90,   0.52,  (max)
07/17 00Z,  -0.40,  15.39,  15.51,  99.90,   0.52,
07/17 01Z,  -0.40,  13.00,  13.21,  99.90,   0.61,
07/17 02Z,  -0.40,   9.28,   9.48,  99.90,   0.60,
07/17 03Z,  -0.40,   5.34,   5.40,  99.90,   0.46,
07/17 04Z,  -0.40,   2.33,   2.30,  99.90,   0.37,
07/17 05Z,  -0.40,   1.11,   1.00,  99.90,   0.29,  (min)
07/17 06Z,  -0.40,   1.96,   2.02,  99.90,   0.46,
07/17 07Z,  -0.40,   4.64,   4.77,  99.90,   0.53,
07/17 08Z,  -0.40,   8.42,   8.62,  99.90,   0.60,
07/17 09Z,  -0.40,  12.39,  12.50,  99.90,   0.51,
07/17 10Z,  -0.40,  15.56,  15.49,  99.90,   0.33,
07/17 11Z,  -0.40,  17.10,  16.98,  99.90,   0.28,  (max)
07/17 12Z,  -0.30,  16.48,  16.34,  99.90,   0.16,
07/17 13Z,  -0.30,  13.68,  13.72,  99.90,   0.34,
07/17 14Z,  -0.40,   9.25,   9.44,  99.90,   0.59,
07/17 15Z,  -0.40,   4.24,   4.57,  99.90,   0.73,
07/17 16Z,  -0.40,  -0.09,   0.26,  99.90,   0.75,
07/17 17Z,  -0.30,  -2.68,  -2.49,  99.90,   0.49,
07/17 18Z,  -0.30,  -2.96,  -2.81,  99.90,   0.45,  (min)
07/17 19Z,  -0.30,  -0.94,  -0.90,  99.90,   0.34,
07/17 20Z,  -0.30,   2.79,   2.86,  99.90,   0.37,
07/17 21Z,  -0.30,   7.33,   7.54,  99.90,   0.51,
07/17 22Z,  -0.20,  11.63,  11.87,  99.90,   0.44,
07/17 23Z,  -0.20,  14.71,  14.99,  99.90,   0.48,
07/18 00Z,   0.00,  15.88,  16.14,  99.90,   0.26,  (max)
07/18 01Z,   0.00,  14.90,  15.15,  99.90,   0.25,
07/18 02Z,   0.00,  12.08,  12.31,  99.90,   0.23,
07/18 03Z,   0.00,   8.24,   8.48,  99.90,   0.24,
07/18 04Z,   0.00,   4.50,   4.72,  99.90,   0.22,
07/18 05Z,   0.00,   1.88,   2.01,  99.90,   0.13,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/18 06Z,   0.00,   1.08,  99.90,   1.23,   0.15,  (min)
07/18 07Z,   0.00,   2.23,  99.90,   2.41,   0.17,
07/18 08Z,   0.00,   4.98,  99.90,   5.18,   0.20,
07/18 09Z,   0.00,   8.62,  99.90,   8.84,   0.22,
07/18 10Z,   0.00,  12.23,  99.90,  12.48,   0.25,
07/18 11Z,   0.00,  14.91,  99.90,  15.19,   0.27,
07/18 12Z,   0.00,  15.94,  99.90,  16.23,   0.30,  (max)
07/18 13Z,  -0.10,  14.92,  99.90,  15.14,   0.32,
07/18 14Z,  -0.10,  12.00,  99.90,  12.24,   0.34,
07/18 15Z,  -0.10,   7.82,  99.90,   8.09,   0.37,
07/18 16Z,  -0.10,   3.44,  99.90,   3.73,   0.39,
07/18 17Z,  -0.10,  -0.04,  99.90,   0.27,   0.42,
07/18 18Z,  -0.20,  -1.76,  99.90,  -1.54,   0.42,  (min)
07/18 19Z,  -0.20,  -1.33,  99.90,  -1.11,   0.42,
07/18 20Z,  -0.20,   1.08,  99.90,   1.29,   0.42,
07/18 21Z,  -0.20,   4.83,  99.90,   5.05,   0.42,
07/18 22Z,  -0.20,   9.05,  99.90,   9.27,   0.42,
07/18 23Z,  -0.20,  12.75,  99.90,  12.97,   0.42,
07/19 00Z,  -0.20,  15.09,  99.90,  15.31,   0.42,
07/19 01Z,  -0.20,  15.54,  99.90,  15.76,   0.42,  (max)
07/19 02Z,  -0.20,  14.03,  99.90,  14.25,   0.42,
07/19 03Z,  -0.30,  11.01,  99.90,  11.13,   0.42,
07/19 04Z,  -0.30,   7.32,  99.90,   7.44,   0.42,
07/19 05Z,  -0.30,   3.97,  99.90,   4.09,   0.42,
07/19 06Z,  -0.30,   1.83,  99.90,   1.95,   0.42,
07/19 07Z,  -0.40,   1.39,  99.90,   1.41,   0.42,  (min)
07/19 08Z,  -0.40,   2.69,  99.90,   2.71,   0.42,
07/19 09Z,  -0.50,   5.32,  99.90,   5.24,   0.42,
07/19 10Z,  -0.50,   8.60,  99.90,   8.52,   0.42,
07/19 11Z,  -0.50,  11.70,  99.90,  11.61,   0.42,
07/19 12Z,  -0.50,  13.82,  99.90,  13.73,   0.42,
07/19 13Z,  -0.50,  14.37,  99.90,  14.29,   0.42,  (max)
07/19 14Z,  -0.50,  13.15,  99.90,  13.06,   0.42,
07/19 15Z,  -0.50,  10.38,  99.90,  10.30,   0.42,
07/19 16Z,  -0.50,   6.76,  99.90,   6.67,   0.42,
07/19 17Z,  -0.60,   3.21,  99.90,   3.03,   0.42,
07/19 18Z,  -0.60,   0.66,  99.90,   0.48,   0.42,
07/19 19Z,  -0.60,  -0.24,  99.90,  -0.43,   0.42,  (min)
07/19 20Z,  -0.60,   0.71,  99.90,   0.52,   0.42,
07/19 21Z,  -0.60,   3.25,  99.90,   3.07,   0.42,
07/19 22Z,  -0.60,   6.77,  99.90,   6.59,   0.42,
07/19 23Z,  -0.50,  10.43,  99.90,  10.35,   0.42,
07/20 00Z,  -0.50,  13.39,  99.90,  13.31,   0.42,
07/20 01Z,  -0.40,  14.97,  99.90,  14.99,   0.42,  (max)
07/20 02Z,  -0.40,  14.82,  99.90,  14.83,   0.42,
07/20 03Z,  -0.40,  13.01,  99.90,  13.02,   0.42,
07/20 04Z,  -0.50,  10.03,  99.90,   9.95,   0.42,
07/20 05Z,  -0.50,   6.69,  99.90,   6.60,   0.42,
07/20 06Z,  -0.60,   3.81,  99.90,   3.63,   0.42,
07/20 07Z,  -0.60,   2.10,  99.90,   1.92,   0.42,
07/20 08Z,  -0.70,   1.90,  99.90,   1.61,   0.42,  (min)
07/20 09Z,  -0.70,   3.16,  99.90,   2.88,   0.42,
07/20 10Z,  -0.70,   5.50,  99.90,   5.22,   0.42,
07/20 11Z,  -0.60,   8.29,  99.90,   8.11,   0.42,
07/20 12Z,  -0.60,  10.82,  99.90,  10.64,   0.42,
07/20 13Z,  -0.50,  12.43,  99.90,  12.35,   0.42,
07/20 14Z,  -0.40,  12.69,  99.90,  12.70,   0.42,  (max)
07/20 15Z,  -0.40,  11.50,  99.90,  11.51,   0.42,
07/20 16Z,  -0.40,   9.15,  99.90,   9.16,   0.42,
07/20 17Z,  -0.50,   6.26,  99.90,   6.18,   0.42,
07/20 18Z,  -0.50,   3.60,  99.90,   3.52,   0.42,
07/20 19Z,  -0.60,   1.90,  99.90,   1.72,   0.42,
07/20 20Z,  -0.60,   1.61,  99.90,   1.42,   0.42,  (min)
07/20 21Z,  -0.60,   2.82,  99.90,   2.64,   0.42,
07/20 22Z,  -0.50,   5.25,  99.90,   5.17,   0.42,
07/20 23Z,  -0.40,   8.32,  99.90,   8.34,   0.42,
07/21 00Z,  -0.30,  11.31,  99.90,  11.43,   0.42,
07/21 01Z,  -0.20,  13.53,  99.90,  13.75,   0.42,
07/21 02Z,  -0.10,  14.47,  99.90,  14.79,   0.42,  (max)
07/21 03Z,  -0.10,  13.92,  99.90,  14.24,   0.42,
07/21 04Z,  -0.10,  12.05,  99.90,  12.36,   0.42,
07/21 05Z,  -0.20,   9.31,  99.90,   9.53,   0.42,
07/21 06Z,  -0.20,   6.38,  99.90,   6.60,   0.42,
07/21 07Z,  -0.30,   3.95,  99.90,   4.06,   0.42,
07/21 08Z,  -0.30,   2.53,  99.90,   2.65,   0.42,
07/21 09Z,  -0.40,   2.39,  99.90,   2.41,   0.42,  (min)
07/21 10Z,  -0.30,   3.47,  99.90,   3.59,   0.42,
07/21 11Z,  -0.30,   5.41,  99.90,   5.53,   0.42,
07/21 12Z,  -0.20,   7.70,  99.90,   7.92,   0.42,
07/21 13Z,  -0.20,   9.74,  99.90,   9.95,   0.42,
07/21 14Z,  -0.10,  11.01,  99.90,  11.33,   0.42,
07/21 15Z,  -0.10,  11.20,  99.90,  11.52,   0.42,  (max)
07/21 16Z,  -0.10,  10.28,  99.90,  10.60,   0.42,
07/21 17Z,  -0.20,   8.50,  99.90,   8.72,   0.42,
07/21 18Z,  -0.20,   6.37,  99.90,   6.59,   0.42,
07/21 19Z,  -0.30,   4.49,  99.90,   4.61,   0.42,
07/21 20Z,  -0.30,   3.41,  99.90,   3.52,   0.42,  (min)
07/21 21Z,  -0.30,   3.45,  99.90,   3.57,   0.42,
07/21 22Z,  -0.30,   4.67,  99.90,   4.79,   0.42,
07/21 23Z,  -0.20,   6.79,  99.90,   7.01,   0.42,
07/22 00Z,  -0.20,   9.33,  99.90,   9.54,   0.42,