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
#Anchorage, AK : 04/12/2026 05:22:32 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/10 12Z,  -0.40,  20.54,  19.66,  99.90,  -0.48,
04/10 13Z,  -0.40,  16.76,  16.52,  99.90,   0.16,
04/10 14Z,  -0.40,  13.45,  13.52,  99.90,   0.47,
04/10 15Z,  -0.40,  11.56,  11.24,  99.90,   0.08,
04/10 16Z,  -0.40,  10.80,  10.36,  99.90,  -0.04,  (min)
04/10 17Z,  -0.40,  11.78,  11.78,  99.90,   0.40,
04/10 18Z,  -0.40,  15.36,  14.73,  99.90,  -0.23,
04/10 19Z,  -0.40,  19.53,  17.89,  99.90,  -1.24,
04/10 20Z,  -0.40,  21.73,  20.23,  99.90,  -1.10,
04/10 21Z,  -0.40,  22.45,  21.45,  99.90,  -0.60,  (max)
04/10 22Z,  -0.40,  22.54,  21.14,  99.90,  -1.00,
04/10 23Z,  -0.40,  21.27,  19.28,  99.90,  -1.59,
04/11 00Z,  -0.40,  18.34,  16.07,  99.90,  -1.87,
04/11 01Z,  -0.40,  14.44,  12.62,  99.90,  -1.42,
04/11 02Z,  -0.40,  10.70,   9.46,  99.90,  -0.84,
04/11 03Z,  -0.40,   8.12,   6.69,  99.90,  -1.03,
04/11 04Z,  -0.40,   6.50,   4.70,  99.90,  -1.40,
04/11 05Z,  -0.40,   5.82,   4.55,  99.90,  -0.87,  (min)
04/11 06Z,  -0.40,   7.64,   7.39,  99.90,   0.15,
04/11 07Z,  -0.40,  11.84,  11.56,  99.90,   0.12,
04/11 08Z,  -0.40,  15.88,  15.55,  99.90,   0.07,
04/11 09Z,  -0.50,  18.95,  18.88,  99.90,   0.43,
04/11 10Z,  -0.50,  21.87,  21.57,  99.90,   0.20,
04/11 11Z,  -0.50,  23.86,  23.12,  99.90,  -0.24,  (max)
04/11 12Z,  -0.50,  23.65,  23.08,  99.90,  -0.07,
04/11 13Z,  -0.50,  21.30,  21.34,  99.90,   0.54,
04/11 14Z,  -0.50,  17.79,  18.31,  99.90,   1.02,
04/11 15Z,  -0.50,  14.55,  15.03,  99.90,   0.98,
04/11 16Z,  -0.50,  12.21,  12.17,  99.90,   0.46,
04/11 17Z,  -0.50,  10.52,  10.17,  99.90,   0.15,
04/11 18Z,  -0.50,  10.65,   9.91,  99.90,  -0.24,  (min)
04/11 19Z,  -0.50,  13.62,  11.91,  99.90,  -1.21,
04/11 20Z,  -0.50,  17.36,  15.10,  99.90,  -1.76,
04/11 21Z,  -0.40,  19.78,  18.28,  99.90,  -1.10,
04/11 22Z,  -0.40,  21.43,  20.58,  99.90,  -0.45,
04/11 23Z,  -0.40,  22.56,  21.53,  99.90,  -0.63,  (max)
04/12 00Z,  -0.40,  22.03,  20.77,  99.90,  -0.86,
04/12 01Z,  -0.40,  19.59,  18.32,  99.90,  -0.87,
04/12 02Z,  -0.40,  15.94,  14.82,  99.90,  -0.72,
04/12 03Z,  -0.30,  12.23,  11.35,  99.90,  -0.58,
04/12 04Z,  -0.30,   9.28,   8.16,  99.90,  -0.82,
04/12 05Z,  -0.30,   6.81,   5.51,  99.90,  -1.00,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/12 06Z,  -0.30,   5.33,  99.90,   4.08,  -0.96,  (min)
04/12 07Z,  -0.30,   6.82,  99.90,   5.60,  -0.91,
04/12 08Z,  -0.30,  10.90,  99.90,   9.73,  -0.87,
04/12 09Z,  -0.30,  15.08,  99.90,  13.94,  -0.83,
04/12 10Z,  -0.20,  18.79,  99.90,  17.80,  -0.79,
04/12 11Z,  -0.20,  22.47,  99.90,  21.52,  -0.75,
04/12 12Z,  -0.20,  24.85,  99.90,  23.94,  -0.71,  (max)
04/12 13Z,  -0.20,  24.73,  99.90,  23.86,  -0.67,
04/12 14Z,  -0.20,  22.34,  99.90,  21.52,  -0.62,
04/12 15Z,  -0.20,  18.69,  99.90,  17.91,  -0.58,
04/12 16Z,  -0.10,  15.07,  99.90,  14.43,  -0.54,
04/12 17Z,  -0.10,  11.86,  99.90,  11.26,  -0.50,
04/12 18Z,  -0.10,   9.13,  99.90,   8.53,  -0.50,
04/12 19Z,  -0.10,   8.70,  99.90,   8.10,  -0.50,  (min)
04/12 20Z,  -0.10,  11.61,  99.90,  11.02,  -0.50,
04/12 21Z,  -0.10,  15.61,  99.90,  15.01,  -0.50,
04/12 22Z,  -0.10,  18.84,  99.90,  18.25,  -0.50,
04/12 23Z,  -0.10,  21.69,  99.90,  21.09,  -0.50,
04/13 00Z,  -0.10,  23.70,  99.90,  23.10,  -0.50,  (max)
04/13 01Z,  -0.10,  23.56,  99.90,  22.96,  -0.50,
04/13 02Z,  -0.10,  21.18,  99.90,  20.58,  -0.50,
04/13 03Z,  -0.10,  17.36,  99.90,  16.76,  -0.50,
04/13 04Z,  -0.10,  13.27,  99.90,  12.67,  -0.50,
04/13 05Z,  -0.20,   9.62,  99.90,   8.92,  -0.50,
04/13 06Z,  -0.20,   6.25,  99.90,   5.55,  -0.50,
04/13 07Z,  -0.20,   4.33,  99.90,   3.63,  -0.50,  (min)
04/13 08Z,  -0.20,   6.06,  99.90,   5.36,  -0.50,
04/13 09Z,  -0.20,  10.63,  99.90,   9.93,  -0.50,
04/13 10Z,  -0.20,  15.45,  99.90,  14.75,  -0.50,
04/13 11Z,  -0.20,  19.99,  99.90,  19.29,  -0.50,
04/13 12Z,  -0.20,  24.17,  99.90,  23.47,  -0.50,
04/13 13Z,  -0.10,  26.44,  99.90,  25.84,  -0.50,  (max)
04/13 14Z,  -0.10,  25.90,  99.90,  25.30,  -0.50,
04/13 15Z,  -0.10,  23.02,  99.90,  22.42,  -0.50,
04/13 16Z,  -0.10,  18.86,  99.90,  18.26,  -0.50,
04/13 17Z,  -0.10,  14.57,  99.90,  13.97,  -0.50,
04/13 18Z,  -0.10,  10.40,  99.90,   9.81,  -0.50,
04/13 19Z,  -0.10,   6.93,  99.90,   6.33,  -0.50,
04/13 20Z,   0.00,   6.54,  99.90,   6.04,  -0.50,  (min)
04/13 21Z,   0.00,  10.06,  99.90,   9.56,  -0.50,
04/13 22Z,  -0.10,  14.89,  99.90,  14.29,  -0.50,
04/13 23Z,  -0.10,  19.24,  99.90,  18.64,  -0.50,
04/14 00Z,  -0.10,  23.13,  99.90,  22.53,  -0.50,
04/14 01Z,   0.00,  25.56,  99.90,  25.06,  -0.50,  (max)
04/14 02Z,   0.00,  25.26,  99.90,  24.76,  -0.50,
04/14 03Z,   0.00,  22.46,  99.90,  21.96,  -0.50,
04/14 04Z,   0.00,  18.13,  99.90,  17.63,  -0.50,
04/14 05Z,   0.00,  13.48,  99.90,  12.98,  -0.50,
04/14 06Z,   0.00,   9.14,  99.90,   8.64,  -0.50,
04/14 07Z,   0.10,   5.17,  99.90,   4.77,  -0.50,
04/14 08Z,   0.00,   3.43,  99.90,   2.93,  -0.50,  (min)
04/14 09Z,   0.00,   6.06,  99.90,   5.56,  -0.50,
04/14 10Z,   0.00,  11.61,  99.90,  11.11,  -0.50,
04/14 11Z,   0.00,  17.27,  99.90,  16.77,  -0.50,
04/14 12Z,   0.00,  22.42,  99.90,  21.92,  -0.50,
04/14 13Z,   0.00,  26.52,  99.90,  26.02,  -0.50,
04/14 14Z,   0.00,  28.03,  99.90,  27.53,  -0.50,  (max)
04/14 15Z,   0.00,  26.55,  99.90,  26.05,  -0.50,
04/14 16Z,   0.00,  22.84,  99.90,  22.34,  -0.50,
04/14 17Z,   0.00,  17.99,  99.90,  17.49,  -0.50,
04/14 18Z,   0.00,  13.01,  99.90,  12.51,  -0.50,
04/14 19Z,   0.00,   8.11,  99.90,   7.61,  -0.50,
04/14 20Z,   0.00,   4.43,  99.90,   3.93,  -0.50,  (min)
04/14 21Z,  -0.10,   4.78,  99.90,   4.18,  -0.50,
04/14 22Z,  -0.10,   9.46,  99.90,   8.86,  -0.50,
04/14 23Z,  -0.20,  15.44,  99.90,  14.74,  -0.50,
04/15 00Z,  -0.20,  20.85,  99.90,  20.15,  -0.50,
04/15 01Z,  -0.20,  25.31,  99.90,  24.61,  -0.50,
04/15 02Z,  -0.20,  27.51,  99.90,  26.81,  -0.50,  (max)
04/15 03Z,  -0.10,  26.53,  99.90,  25.93,  -0.50,
04/15 04Z,  -0.10,  23.00,  99.90,  22.40,  -0.50,
04/15 05Z,  -0.10,  18.07,  99.90,  17.47,  -0.50,
04/15 06Z,  -0.10,  12.94,  99.90,  12.34,  -0.50,
04/15 07Z,  -0.10,   8.12,  99.90,   7.53,  -0.50,
04/15 08Z,  -0.10,   4.07,  99.90,   3.47,  -0.50,
04/15 09Z,  -0.20,   3.17,  99.90,   2.47,  -0.50,  (min)
04/15 10Z,  -0.20,   7.23,  99.90,   6.53,  -0.50,
04/15 11Z,  -0.20,  13.97,  99.90,  13.27,  -0.50,
04/15 12Z,  -0.20,  20.34,  99.90,  19.64,  -0.50,
04/15 13Z,  -0.20,  25.56,  99.90,  24.86,  -0.50,
04/15 14Z,  -0.20,  28.85,  99.90,  28.15,  -0.50,
04/15 15Z,  -0.10,  29.02,  99.90,  28.42,  -0.50,  (max)
04/15 16Z,  -0.10,  26.27,  99.90,  25.67,  -0.50,
04/15 17Z,   0.00,  21.62,  99.90,  21.12,  -0.50,
04/15 18Z,   0.00,  16.15,  99.90,  15.65,  -0.50,
04/15 19Z,   0.00,  10.66,  99.90,  10.16,  -0.50,
04/15 20Z,  -0.10,   5.40,  99.90,   4.80,  -0.50,
04/15 21Z,  -0.10,   2.13,  99.90,   1.53,  -0.50,  (min)
04/15 22Z,  -0.10,   3.82,  99.90,   3.22,  -0.50,
04/15 23Z,  -0.10,  10.00,  99.90,   9.40,  -0.50,
04/16 00Z,  -0.10,  17.11,  99.90,  16.51,  -0.50,