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 : 05/11/2026 05:20:39 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/09 12Z,   0.40,  10.23,  10.40,  99.90,  -0.23,
05/09 13Z,   0.50,  11.38,  11.53,  99.90,  -0.35,
05/09 14Z,   0.60,  11.88,  12.11,  99.90,  -0.37,  (max)
05/09 15Z,   0.60,  11.51,  11.81,  99.90,  -0.30,
05/09 16Z,   0.60,  10.26,  10.55,  99.90,  -0.31,
05/09 17Z,   0.60,   8.36,   8.65,  99.90,  -0.31,
05/09 18Z,   0.30,   6.20,   6.39,  99.90,  -0.11,
05/09 19Z,   0.30,   4.24,   4.29,  99.90,  -0.25,
05/09 20Z,   0.30,   2.91,   2.95,  99.90,  -0.26,
05/09 21Z,   0.40,   2.46,   2.48,  99.90,  -0.38,  (min)
05/09 22Z,   0.40,   2.95,   3.12,  99.90,  -0.23,
05/09 23Z,   0.50,   4.25,   4.50,  99.90,  -0.25,
05/10 00Z,   0.20,   6.08,   6.45,  99.90,   0.17,
05/10 01Z,   0.30,   8.04,   8.30,  99.90,  -0.04,
05/10 02Z,   0.40,   9.76,   9.90,  99.90,  -0.26,
05/10 03Z,   0.40,  10.88,  10.88,  99.90,  -0.40,
05/10 04Z,   0.40,  11.19,  11.18,  99.90,  -0.41,  (max)
05/10 05Z,   0.40,  10.68,  10.71,  99.90,  -0.37,
05/10 06Z,   0.20,   9.53,   9.79,  99.90,   0.06,
05/10 07Z,   0.20,   8.10,   8.41,  99.90,   0.11,
05/10 08Z,   0.20,   6.81,   7.14,  99.90,   0.13,
05/10 09Z,   0.30,   6.03,   6.34,  99.90,   0.01,
05/10 10Z,   0.30,   5.97,   6.09,  99.90,  -0.18,  (min)
05/10 11Z,   0.30,   6.66,   6.68,  99.90,  -0.28,
05/10 12Z,   0.10,   7.90,   7.80,  99.90,  -0.20,
05/10 13Z,   0.20,   9.37,   9.25,  99.90,  -0.32,
05/10 14Z,   0.20,  10.65,  10.63,  99.90,  -0.22,
05/10 15Z,   0.20,  11.37,  11.35,  99.90,  -0.22,  (max)
05/10 16Z,   0.20,  11.26,  11.24,  99.90,  -0.22,
05/10 17Z,   0.20,  10.26,  10.20,  99.90,  -0.26,
05/10 18Z,   0.00,   8.54,   8.46,  99.90,  -0.08,
05/10 19Z,   0.00,   6.47,   6.32,  99.90,  -0.15,
05/10 20Z,   0.00,   4.51,   4.38,  99.90,  -0.13,
05/10 21Z,   0.00,   3.11,   3.04,  99.90,  -0.07,
05/10 22Z,   0.00,   2.58,   2.57,  99.90,  -0.01,  (min)
05/10 23Z,   0.00,   3.03,   3.10,  99.90,   0.07,
05/11 00Z,   0.00,   4.37,   4.30,  99.90,  -0.07,
05/11 01Z,   0.00,   6.31,   6.11,  99.90,  -0.20,
05/11 02Z,   0.00,   8.46,   8.10,  99.90,  -0.36,
05/11 03Z,  -0.10,  10.36,   9.87,  99.90,  -0.39,
05/11 04Z,  -0.20,  11.61,  11.12,  99.90,  -0.29,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/11 05Z,  -0.30,  11.95,  99.90,  11.37,  -0.28,  (max)
05/11 06Z,  -0.30,  11.31,  99.90,  10.74,  -0.27,
05/11 07Z,  -0.30,   9.89,  99.90,   9.32,  -0.26,
05/11 08Z,  -0.30,   8.06,  99.90,   7.51,  -0.25,
05/11 09Z,  -0.30,   6.33,  99.90,   5.78,  -0.24,
05/11 10Z,  -0.30,   5.14,  99.90,   4.61,  -0.24,
05/11 11Z,  -0.30,   4.81,  99.90,   4.29,  -0.23,  (min)
05/11 12Z,  -0.30,   5.42,  99.90,   4.91,  -0.22,
05/11 13Z,  -0.30,   6.79,  99.90,   6.28,  -0.21,
05/11 14Z,  -0.30,   8.55,  99.90,   8.05,  -0.20,
05/11 15Z,  -0.30,  10.21,  99.90,   9.73,  -0.19,
05/11 16Z,  -0.40,  11.31,  99.90,  10.74,  -0.18,
05/11 17Z,  -0.50,  11.51,  99.90,  10.83,  -0.18,  (max)
05/11 18Z,  -0.60,  10.67,  99.90,   9.90,  -0.18,
05/11 19Z,  -0.60,   8.97,  99.90,   8.19,  -0.18,
05/11 20Z,  -0.70,   6.78,  99.90,   5.90,  -0.18,
05/11 21Z,  -0.70,   4.63,  99.90,   3.76,  -0.18,
05/11 22Z,  -0.70,   3.06,  99.90,   2.19,  -0.18,
05/11 23Z,  -0.60,   2.46,  99.90,   1.69,  -0.18,  (min)
05/12 00Z,  -0.60,   3.00,  99.90,   2.22,  -0.18,
05/12 01Z,  -0.50,   4.56,  99.90,   3.89,  -0.18,
05/12 02Z,  -0.50,   6.84,  99.90,   6.16,  -0.18,
05/12 03Z,  -0.50,   9.33,  99.90,   8.65,  -0.18,
05/12 04Z,  -0.50,  11.48,  99.90,  10.81,  -0.18,
05/12 05Z,  -0.50,  12.81,  99.90,  12.14,  -0.18,
05/12 06Z,  -0.50,  13.00,  99.90,  12.32,  -0.18,  (max)
05/12 07Z,  -0.50,  11.98,  99.90,  11.30,  -0.18,
05/12 08Z,  -0.50,  10.00,  99.90,   9.32,  -0.18,
05/12 09Z,  -0.50,   7.54,  99.90,   6.86,  -0.18,
05/12 10Z,  -0.50,   5.22,  99.90,   4.55,  -0.18,
05/12 11Z,  -0.50,   3.64,  99.90,   2.96,  -0.18,
05/12 12Z,  -0.40,   3.18,  99.90,   2.61,  -0.18,  (min)
05/12 13Z,  -0.40,   3.95,  99.90,   3.37,  -0.18,
05/12 14Z,  -0.40,   5.72,  99.90,   5.14,  -0.18,
05/12 15Z,  -0.40,   8.01,  99.90,   7.43,  -0.18,
05/12 16Z,  -0.40,  10.21,  99.90,   9.63,  -0.18,
05/12 17Z,  -0.40,  11.73,  99.90,  11.15,  -0.18,
05/12 18Z,  -0.40,  12.14,  99.90,  11.57,  -0.18,  (max)
05/12 19Z,  -0.40,  11.32,  99.90,  10.74,  -0.18,
05/12 20Z,  -0.40,   9.43,  99.90,   8.86,  -0.18,
05/12 21Z,  -0.30,   6.96,  99.90,   6.48,  -0.18,
05/12 22Z,  -0.30,   4.53,  99.90,   4.06,  -0.18,
05/12 23Z,  -0.20,   2.80,  99.90,   2.43,  -0.18,
05/13 00Z,  -0.10,   2.25,  99.90,   1.97,  -0.18,  (min)
05/13 01Z,   0.00,   3.04,  99.90,   2.87,  -0.18,
05/13 02Z,   0.00,   5.04,  99.90,   4.86,  -0.18,
05/13 03Z,   0.00,   7.80,  99.90,   7.62,  -0.18,
05/13 04Z,   0.00,  10.68,  99.90,  10.50,  -0.18,
05/13 05Z,   0.00,  13.02,  99.90,  12.85,  -0.18,
05/13 06Z,   0.00,  14.26,  99.90,  14.08,  -0.18,  (max)
05/13 07Z,  -0.10,  14.05,  99.90,  13.78,  -0.18,
05/13 08Z,  -0.10,  12.41,  99.90,  12.13,  -0.18,
05/13 09Z,  -0.10,   9.66,  99.90,   9.38,  -0.18,
05/13 10Z,  -0.10,   6.45,  99.90,   6.17,  -0.18,
05/13 11Z,   0.00,   3.56,  99.90,   3.39,  -0.18,
05/13 12Z,   0.00,   1.72,  99.90,   1.54,  -0.18,
05/13 13Z,   0.00,   1.35,  99.90,   1.18,  -0.18,  (min)
05/13 14Z,   0.00,   2.54,  99.90,   2.36,  -0.18,
05/13 15Z,   0.00,   4.93,  99.90,   4.75,  -0.18,
05/13 16Z,   0.00,   7.89,  99.90,   7.71,  -0.18,
05/13 17Z,   0.00,  10.64,  99.90,  10.47,  -0.18,
05/13 18Z,   0.00,  12.50,  99.90,  12.32,  -0.18,
05/13 19Z,  -0.10,  12.99,  99.90,  12.71,  -0.18,  (max)
05/13 20Z,  -0.10,  12.00,  99.90,  11.72,  -0.18,
05/13 21Z,  -0.10,   9.78,  99.90,   9.50,  -0.18,
05/13 22Z,  -0.10,   6.92,  99.90,   6.65,  -0.18,
05/13 23Z,   0.00,   4.22,  99.90,   4.05,  -0.18,
05/14 00Z,   0.00,   2.43,  99.90,   2.26,  -0.18,
05/14 01Z,   0.00,   2.09,  99.90,   1.91,  -0.18,  (min)
05/14 02Z,   0.00,   3.33,  99.90,   3.15,  -0.18,
05/14 03Z,   0.00,   5.89,  99.90,   5.72,  -0.18,
05/14 04Z,   0.00,   9.17,  99.90,   8.99,  -0.18,
05/14 05Z,   0.00,  12.38,  99.90,  12.20,  -0.18,
05/14 06Z,  -0.10,  14.75,  99.90,  14.47,  -0.18,
05/14 07Z,  -0.10,  15.67,  99.90,  15.40,  -0.18,  (max)
05/14 08Z,  -0.10,  14.87,  99.90,  14.59,  -0.18,
05/14 09Z,  -0.10,  12.41,  99.90,  12.14,  -0.18,
05/14 10Z,   0.00,   8.81,  99.90,   8.64,  -0.18,
05/14 11Z,   0.00,   4.88,  99.90,   4.71,  -0.18,
05/14 12Z,   0.00,   1.56,  99.90,   1.39,  -0.18,
05/14 13Z,   0.00,  -0.33,  99.90,  -0.50,  -0.18,
05/14 14Z,   0.00,  -0.34,  99.90,  -0.52,  -0.18,  (min)
05/14 15Z,   0.00,   1.47,  99.90,   1.29,  -0.18,
05/14 16Z,   0.00,   4.59,  99.90,   4.42,  -0.18,
05/14 17Z,  -0.10,   8.21,  99.90,   7.93,  -0.18,
05/14 18Z,  -0.10,  11.41,  99.90,  11.14,  -0.18,
05/14 19Z,  99.90,  13.44,  99.90,  99.90,  -0.18,
05/14 20Z,  99.90,  13.83,  99.90,  99.90,  -0.18,
05/14 21Z,  99.90,  12.52,  99.90,  99.90,  -0.18,
05/14 22Z,  99.90,   9.88,  99.90,  99.90,  -0.18,
05/14 23Z,  99.90,   6.65,  99.90,  99.90,  -0.18,
05/15 00Z,  99.90,   3.77,  99.90,  99.90,  -0.18,