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 : 04/30/2025 07:20:46 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/28 12Z,  -0.30,  10.15,  12.76,  99.90,   2.91,  (min)
04/28 13Z,  -0.30,  19.61,  20.29,  99.90,   0.98,
04/28 14Z,  -0.20,  27.57,  26.49,  99.90,  -0.88,
04/28 15Z,  -0.20,  32.37,  30.95,  99.90,  -1.22,
04/28 16Z,  -0.10,  33.48,  32.78,  99.90,  -0.60,  (max)
04/28 17Z,   0.00,  30.81,  29.96,  99.90,  -0.85,
04/28 18Z,   0.00,  25.62,  24.66,  99.90,  -0.96,
04/28 19Z,   0.00,  19.27,  18.78,  99.90,  -0.49,
04/28 20Z,   0.00,  12.57,  13.04,  99.90,   0.47,
04/28 21Z,   0.10,   5.98,   7.44,  99.90,   1.36,
04/28 22Z,   0.10,  -0.03,   2.49,  99.90,   2.42,
04/28 23Z,   0.20,  -3.10,  -2.30,  99.90,   0.60,  (min)
04/29 00Z,   0.20,   0.12,   0.01,  99.90,  -0.31,
04/29 01Z,   0.30,   8.86,  10.93,  99.90,   1.77,
04/29 02Z,   0.30,  18.56,  18.75,  99.90,  -0.11,
04/29 03Z,   0.40,  26.21,  24.71,  99.90,  -1.90,
04/29 04Z,   0.50,  30.81,  28.93,  99.90,  -2.38,
04/29 05Z,   0.60,  31.55,  30.53,  99.90,  -1.62,  (max)
04/29 06Z,   0.60,  28.79,  27.78,  99.90,  -1.61,
04/29 07Z,   0.70,  23.92,  22.64,  99.90,  -1.98,
04/29 08Z,   0.70,  18.06,  17.04,  99.90,  -1.72,
04/29 09Z,   0.80,  12.17,  11.76,  99.90,  -1.21,
04/29 10Z,   0.80,   6.89,   6.65,  99.90,  -1.04,
04/29 11Z,   0.80,   3.60,   2.79,  99.90,  -1.61,  (min)
04/29 12Z,   0.80,   5.41,   6.83,  99.90,   0.62,
04/29 13Z,   0.80,  13.14,  15.59,  99.90,   1.65,
04/29 14Z,   0.80,  22.66,  22.60,  99.90,  -0.86,
04/29 15Z,   0.70,  29.72,  28.35,  99.90,  -2.07,
04/29 16Z,   0.70,  33.21,  31.93,  99.90,  -1.98,
04/29 17Z,   0.60,  32.95,  32.32,  99.90,  -1.23,  (max)
04/29 18Z,   0.60,  29.32,  28.34,  99.90,  -1.58,
04/29 19Z,   0.50,  23.72,  22.76,  99.90,  -1.46,
04/29 20Z,   0.50,  17.27,  16.89,  99.90,  -0.88,
04/29 21Z,   0.40,  10.58,  11.16,  99.90,   0.18,
04/29 22Z,   0.30,   4.12,   5.75,  99.90,   1.33,
04/29 23Z,   0.20,  -1.38,   0.76,  99.90,   1.94,
04/30 00Z,   0.10,  -3.18,  -3.63,  99.90,  -0.55,  (min)
04/30 01Z,   0.00,   1.56,   2.02,  99.90,   0.46,
04/30 02Z,   0.00,  10.94,  12.26,  99.90,   1.32,
04/30 03Z,   0.00,  20.23,  19.52,  99.90,  -0.71,
04/30 04Z,  -0.10,  27.03,  24.99,  99.90,  -1.94,
04/30 05Z,  -0.10,  30.71,  28.80,  99.90,  -1.81,
04/30 06Z,  -0.20,  30.77,  29.58,  99.90,  -0.99,  (max)
04/30 07Z,  -0.20,  27.77,  26.32,  99.90,  -1.25,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/30 08Z,  -0.20,  22.92,  99.90,  21.55,  -1.17,
04/30 09Z,  -0.20,  17.16,  99.90,  15.87,  -1.10,
04/30 10Z,  -0.20,  11.47,  99.90,  10.25,  -1.02,
04/30 11Z,  -0.20,   6.63,  99.90,   5.49,  -0.94,
04/30 12Z,  -0.20,   4.34,  99.90,   3.29,  -0.86,  (min)
04/30 13Z,  -0.20,   7.54,  99.90,   6.57,  -0.78,
04/30 14Z,  -0.20,  15.94,  99.90,  15.04,  -0.70,
04/30 15Z,  -0.30,  24.82,  99.90,  23.90,  -0.62,
04/30 16Z,  -0.30,  30.56,  99.90,  29.72,  -0.54,
04/30 17Z,  -0.40,  32.74,  99.90,  31.88,  -0.46,  (max)
04/30 18Z,  -0.40,  31.49,  99.90,  30.71,  -0.38,
04/30 19Z,  -0.50,  27.40,  99.90,  26.60,  -0.30,
04/30 20Z,  -0.60,  21.77,  99.90,  20.86,  -0.30,
04/30 21Z,  -0.70,  15.42,  99.90,  14.41,  -0.30,
04/30 22Z,  -0.80,   8.95,  99.90,   7.85,  -0.30,
04/30 23Z,  -0.80,   2.92,  99.90,   1.81,  -0.30,
05/01 00Z,  -0.80,  -1.74,  99.90,  -2.84,  -0.30,
05/01 01Z,  -0.80,  -2.15,  99.90,  -3.26,  -0.30,  (min)
05/01 02Z,  -0.90,   3.70,  99.90,   2.50,  -0.30,
05/01 03Z,  -0.90,  13.00,  99.90,  11.80,  -0.30,
05/01 04Z,  -0.90,  21.29,  99.90,  20.08,  -0.30,
05/01 05Z,  -0.90,  27.02,  99.90,  25.81,  -0.30,
05/01 06Z,  -0.90,  29.92,  99.90,  28.71,  -0.30,  (max)
05/01 07Z,  -0.90,  29.58,  99.90,  28.38,  -0.30,
05/01 08Z,  -0.90,  26.56,  99.90,  25.35,  -0.30,
05/01 09Z,  -0.90,  21.80,  99.90,  20.60,  -0.30,
05/01 10Z,  -0.90,  16.22,  99.90,  15.02,  -0.30,
05/01 11Z,  -0.80,  10.91,  99.90,   9.81,  -0.30,
05/01 12Z,  -0.80,   6.73,  99.90,   5.63,  -0.30,
05/01 13Z,  -0.70,   5.51,  99.90,   4.51,  -0.30,  (min)
05/01 14Z,  -0.60,   9.73,  99.90,   8.82,  -0.30,
05/01 15Z,  -0.60,  18.06,  99.90,  17.16,  -0.30,
05/01 16Z,  -0.50,  25.70,  99.90,  24.90,  -0.30,
05/01 17Z,  -0.50,  30.01,  99.90,  29.20,  -0.30,
05/01 18Z,  -0.50,  31.18,  99.90,  30.38,  -0.30,  (max)
05/01 19Z,  -0.50,  29.46,  99.90,  28.66,  -0.30,
05/01 20Z,  -0.50,  25.37,  99.90,  24.57,  -0.30,
05/01 21Z,  -0.50,  19.96,  99.90,  19.16,  -0.30,
05/01 22Z,  -0.50,  13.91,  99.90,  13.11,  -0.30,
05/01 23Z,  -0.40,   7.94,  99.90,   7.24,  -0.30,
05/02 00Z,  -0.40,   2.62,  99.90,   1.92,  -0.30,
05/02 01Z,  -0.30,  -1.02,  99.90,  -1.62,  -0.30,  (min)
05/02 02Z,  -0.20,  -0.26,  99.90,  -0.76,  -0.30,
05/02 03Z,  -0.20,   6.06,  99.90,   5.56,  -0.30,
05/02 04Z,  -0.10,  14.55,  99.90,  14.15,  -0.30,
05/02 05Z,  -0.10,  21.51,  99.90,  21.11,  -0.30,
05/02 06Z,   0.00,  26.26,  99.90,  25.96,  -0.30,
05/02 07Z,   0.00,  28.66,  99.90,  28.36,  -0.30,  (max)
05/02 08Z,   0.00,  28.21,  99.90,  27.90,  -0.30,
05/02 09Z,   0.00,  25.29,  99.90,  24.99,  -0.30,
05/02 10Z,   0.00,  20.71,  99.90,  20.41,  -0.30,
05/02 11Z,   0.00,  15.48,  99.90,  15.17,  -0.30,
05/02 12Z,   0.00,  10.75,  99.90,  10.45,  -0.30,
05/02 13Z,   0.00,   7.30,  99.90,   7.00,  -0.30,
05/02 14Z,   0.00,   6.92,  99.90,   6.62,  -0.30,  (min)
05/02 15Z,   0.00,  11.52,  99.90,  11.22,  -0.30,
05/02 16Z,  -0.10,  19.05,  99.90,  18.65,  -0.30,
05/02 17Z,  -0.10,  25.14,  99.90,  24.74,  -0.30,
05/02 18Z,  -0.10,  28.25,  99.90,  27.85,  -0.30,
05/02 19Z,  -0.10,  28.94,  99.90,  28.54,  -0.30,  (max)
05/02 20Z,  -0.10,  27.26,  99.90,  26.85,  -0.30,
05/02 21Z,  -0.10,  23.51,  99.90,  23.11,  -0.30,
05/02 22Z,  -0.10,  18.53,  99.90,  18.13,  -0.30,
05/02 23Z,  -0.10,  13.00,  99.90,  12.60,  -0.30,
05/03 00Z,  -0.10,   7.77,  99.90,   7.36,  -0.30,
05/03 01Z,   0.00,   3.30,  99.90,   3.00,  -0.30,
05/03 02Z,   0.00,   0.55,  99.90,   0.25,  -0.30,  (min)
05/03 03Z,   0.00,   1.99,  99.90,   1.69,  -0.30,
05/03 04Z,   0.10,   8.04,  99.90,   7.84,  -0.30,
05/03 05Z,   0.20,  15.25,  99.90,  15.15,  -0.30,
05/03 06Z,   0.30,  20.92,  99.90,  20.91,  -0.30,
05/03 07Z,   0.40,  25.03,  99.90,  25.13,  -0.30,
05/03 08Z,   0.50,  27.27,  99.90,  27.47,  -0.30,  (max)
05/03 09Z,   0.60,  26.91,  99.90,  27.21,  -0.30,
05/03 10Z,   0.60,  24.21,  99.90,  24.51,  -0.30,
05/03 11Z,   0.70,  19.91,  99.90,  20.31,  -0.30,
05/03 12Z,   0.70,  15.20,  99.90,  15.60,  -0.30,
05/03 13Z,   0.80,  11.12,  99.90,  11.62,  -0.30,
05/03 14Z,   0.80,   8.21,  99.90,   8.71,  -0.30,  (min)
05/03 15Z,   0.90,   8.16,  99.90,   8.76,  -0.30,
05/03 16Z,   0.90,  12.45,  99.90,  13.05,  -0.30,
05/03 17Z,   0.90,  18.70,  99.90,  19.30,  -0.30,
05/03 18Z,   0.90,  23.32,  99.90,  23.92,  -0.30,
05/03 19Z,   0.90,  25.75,  99.90,  26.35,  -0.30,
05/03 20Z,   0.80,  26.53,  99.90,  27.03,  -0.30,  (max)
05/03 21Z,   0.80,  25.30,  99.90,  25.79,  -0.30,
05/03 22Z,   0.70,  22.13,  99.90,  22.53,  -0.30,
05/03 23Z,   0.60,  17.73,  99.90,  18.02,  -0.30,
05/04 00Z,   0.60,  12.89,  99.90,  13.19,  -0.30,