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
#Nikiski, AK : 04/16/2026 11:20:36 GMT (units in feet MSL)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/14 12Z,   0.00,   7.79,   7.25,  99.90,  -0.54,  (max)
04/14 13Z,   0.00,   5.63,   5.33,  99.90,  -0.30,
04/14 14Z,   0.00,   2.26,   1.91,  99.90,  -0.35,
04/14 15Z,   0.00,  -1.49,  -1.78,  99.90,  -0.29,
04/14 16Z,   0.00,  -5.16,  -5.23,  99.90,  -0.07,
04/14 17Z,   0.00,  -7.96,  -8.11,  99.90,  -0.15,
04/14 18Z,   0.00,  -8.47,  -9.27,  99.90,  -0.80,  (min)
04/14 19Z,  -0.10,  -6.29,  -7.26,  99.90,  -0.87,
04/14 20Z,  -0.10,  -2.62,  -3.23,  99.90,  -0.51,
04/14 21Z,  -0.10,   1.33,   0.69,  99.90,  -0.54,
04/14 22Z,  -0.10,   4.92,   4.08,  99.90,  -0.74,
04/14 23Z,  -0.10,   7.31,   6.35,  99.90,  -0.86,
04/15 00Z,  -0.10,   7.61,   6.75,  99.90,  -0.76,  (max)
04/15 01Z,  -0.10,   5.68,   4.99,  99.90,  -0.59,
04/15 02Z,  -0.10,   2.24,   1.49,  99.90,  -0.65,
04/15 03Z,  -0.10,  -1.74,  -2.45,  99.90,  -0.61,
04/15 04Z,  -0.10,  -5.61,  -6.14,  99.90,  -0.43,
04/15 05Z,  -0.10,  -8.83,  -9.47,  99.90,  -0.54,
04/15 06Z,  -0.10, -10.07, -11.15,  99.90,  -0.98,  (min)
04/15 07Z,  -0.10,  -8.27,  -9.63,  99.90,  -1.26,
04/15 08Z,  -0.10,  -4.20,  -4.77,  99.90,  -0.47,
04/15 09Z,  -0.10,   0.55,   0.02,  99.90,  -0.43,
04/15 10Z,  -0.10,   4.98,   4.31,  99.90,  -0.57,
04/15 11Z,   0.00,   8.28,   7.53,  99.90,  -0.75,
04/15 12Z,   0.00,   9.47,   8.88,  99.90,  -0.59,  (max)
04/15 13Z,   0.00,   8.11,   7.77,  99.90,  -0.34,
04/15 14Z,   0.00,   4.68,   4.27,  99.90,  -0.41,
04/15 15Z,   0.00,   0.26,  -0.21,  99.90,  -0.47,
04/15 16Z,   0.00,  -4.25,  -4.33,  99.90,  -0.08,
04/15 17Z,   0.00,  -8.28,  -8.29,  99.90,  -0.01,
04/15 18Z,   0.00, -10.74, -11.14,  99.90,  -0.40,
04/15 19Z,   0.00, -10.20, -11.45,  99.90,  -1.25,  (min)
04/15 20Z,   0.00,  -6.65,  -7.34,  99.90,  -0.69,
04/15 21Z,   0.00,  -1.73,  -1.97,  99.90,  -0.24,
04/15 22Z,   0.00,   3.11,   2.68,  99.90,  -0.43,
04/15 23Z,   0.00,   7.00,   6.42,  99.90,  -0.58,
04/16 00Z,   0.00,   9.00,   8.41,  99.90,  -0.59,  (max)
04/16 01Z,   0.00,   8.47,   7.97,  99.90,  -0.50,
04/16 02Z,   0.00,   5.59,   4.99,  99.90,  -0.60,
04/16 03Z,   0.00,   1.34,   0.61,  99.90,  -0.73,
04/16 04Z,   0.00,  -3.15,  -3.69,  99.90,  -0.54,
04/16 05Z,   0.00,  -7.21,  -7.69,  99.90,  -0.48,
04/16 06Z,  -0.10, -10.02, -10.80,  99.90,  -0.68,
04/16 07Z,  -0.10, -10.15, -11.68,  99.90,  -1.43,  (min)
04/16 08Z,  -0.10,  -6.93,  -7.80,  99.90,  -0.77,
04/16 09Z,  -0.10,  -1.67,  -2.00,  99.90,  -0.23,
04/16 10Z,  -0.10,   3.70,   3.10,  99.90,  -0.50,
04/16 11Z,  -0.20,   8.04,   7.36,  99.90,  -0.48,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/16 12Z,  -0.20,  10.50,  99.90,   9.83,  -0.47,  (max)
04/16 13Z,  -0.20,  10.35,  99.90,   9.69,  -0.46,
04/16 14Z,  -0.30,   7.55,  99.90,   6.79,  -0.46,
04/16 15Z,  -0.30,   2.91,  99.90,   2.15,  -0.45,
04/16 16Z,  -0.30,  -2.38,  99.90,  -3.12,  -0.45,
04/16 17Z,  -0.40,  -7.36,  99.90,  -8.20,  -0.44,
04/16 18Z,  -0.40, -11.35,  99.90, -12.19,  -0.44,
04/16 19Z,  -0.40, -13.03,  99.90, -13.86,  -0.43,  (min)
04/16 20Z,  -0.40, -11.10,  99.90, -11.92,  -0.43,
04/16 21Z,  -0.40,  -6.13,  99.90,  -6.95,  -0.42,
04/16 22Z,  -0.40,  -0.18,  99.90,  -0.99,  -0.41,
04/16 23Z,  -0.40,   5.13,  99.90,   4.32,  -0.41,
04/17 00Z,  -0.40,   8.85,  99.90,   8.04,  -0.41,
04/17 01Z,  -0.40,  10.13,  99.90,   9.33,  -0.41,  (max)
04/17 02Z,  -0.40,   8.64,  99.90,   7.83,  -0.41,
04/17 03Z,  -0.40,   4.90,  99.90,   4.09,  -0.41,
04/17 04Z,  -0.40,   0.07,  99.90,  -0.73,  -0.41,
04/17 05Z,  -0.40,  -4.65,  99.90,  -5.46,  -0.41,
04/17 06Z,  -0.40,  -8.52,  99.90,  -9.33,  -0.41,
04/17 07Z,  -0.40, -10.55,  99.90, -11.36,  -0.41,  (min)
04/17 08Z,  -0.40,  -9.31,  99.90, -10.12,  -0.41,
04/17 09Z,  -0.30,  -4.68,  99.90,  -5.39,  -0.41,
04/17 10Z,  -0.30,   1.44,  99.90,   0.73,  -0.41,
04/17 11Z,  -0.20,   6.91,  99.90,   6.30,  -0.41,
04/17 12Z,  -0.20,  10.62,  99.90,  10.01,  -0.41,
04/17 13Z,  -0.20,  11.89,  99.90,  11.28,  -0.41,  (max)
04/17 14Z,  -0.20,  10.30,  99.90,   9.69,  -0.41,
04/17 15Z,  -0.20,   6.19,  99.90,   5.58,  -0.41,
04/17 16Z,  -0.30,   0.60,  99.90,  -0.11,  -0.41,
04/17 17Z,  -0.30,  -5.21,  99.90,  -5.92,  -0.41,
04/17 18Z,  -0.30, -10.31,  99.90, -11.01,  -0.41,
04/17 19Z,  -0.30, -13.85,  99.90, -14.56,  -0.41,
04/17 20Z,  -0.30, -14.42,  99.90, -15.13,  -0.41,  (min)
04/17 21Z,  -0.30, -11.04,  99.90, -11.75,  -0.41,
04/17 22Z,  -0.30,  -4.90,  99.90,  -5.61,  -0.41,
04/17 23Z,  -0.30,   1.63,  99.90,   0.92,  -0.41,
04/18 00Z,  -0.30,   6.90,  99.90,   6.19,  -0.41,
04/18 01Z,  -0.30,  10.07,  99.90,   9.37,  -0.41,
04/18 02Z,  -0.30,  10.51,  99.90,   9.80,  -0.41,  (max)
04/18 03Z,  -0.20,   8.17,  99.90,   7.56,  -0.41,
04/18 04Z,  -0.30,   3.81,  99.90,   3.10,  -0.41,
04/18 05Z,  -0.30,  -1.28,  99.90,  -1.98,  -0.41,
04/18 06Z,  -0.30,  -5.91,  99.90,  -6.62,  -0.41,
04/18 07Z,  -0.30,  -9.27,  99.90,  -9.97,  -0.41,
04/18 08Z,  -0.20, -10.25,  99.90, -10.85,  -0.41,  (min)
04/18 09Z,  -0.20,  -7.63,  99.90,  -8.24,  -0.41,
04/18 10Z,  -0.20,  -1.91,  99.90,  -2.52,  -0.41,
04/18 11Z,  -0.10,   4.53,  99.90,   4.02,  -0.41,
04/18 12Z,  -0.10,   9.56,  99.90,   9.05,  -0.41,
04/18 13Z,  -0.10,  12.27,  99.90,  11.76,  -0.41,  (max)
04/18 14Z,  -0.10,  12.24,  99.90,  11.73,  -0.41,
04/18 15Z,  -0.10,   9.40,  99.90,   8.89,  -0.41,
04/18 16Z,  -0.10,   4.33,  99.90,   3.82,  -0.41,
04/18 17Z,  -0.20,  -1.81,  99.90,  -2.42,  -0.41,
04/18 18Z,  -0.20,  -7.76,  99.90,  -8.37,  -0.41,
04/18 19Z,  -0.20, -12.60,  99.90, -13.21,  -0.41,
04/18 20Z,  -0.20, -15.40,  99.90, -16.01,  -0.41,  (min)
04/18 21Z,  -0.20, -14.75,  99.90, -15.36,  -0.41,
04/18 22Z,  -0.10, -10.14,  99.90, -10.65,  -0.41,
04/18 23Z,  -0.10,  -3.32,  99.90,  -3.83,  -0.41,
04/19 00Z,  -0.10,   3.21,  99.90,   2.70,  -0.41,
04/19 01Z,   0.00,   8.03,  99.90,   7.62,  -0.41,
04/19 02Z,   0.00,  10.48,  99.90,  10.07,  -0.41,  (max)
04/19 03Z,   0.00,  10.16,  99.90,   9.75,  -0.41,
04/19 04Z,   0.00,   7.23,  99.90,   6.82,  -0.41,
04/19 05Z,   0.00,   2.59,  99.90,   2.18,  -0.41,
04/19 06Z,   0.00,  -2.43,  99.90,  -2.84,  -0.41,
04/19 07Z,   0.00,  -6.66,  99.90,  -7.07,  -0.41,
04/19 08Z,   0.00,  -9.28,  99.90,  -9.69,  -0.41,  (min)
04/19 09Z,   0.00,  -9.15,  99.90,  -9.56,  -0.41,
04/19 10Z,   0.00,  -5.41,  99.90,  -5.82,  -0.41,
04/19 11Z,   0.10,   0.86,  99.90,   0.55,  -0.41,
04/19 12Z,   0.10,   7.00,  99.90,   6.69,  -0.41,
04/19 13Z,   0.10,  11.16,  99.90,  10.85,  -0.41,
04/19 14Z,   0.10,  12.75,  99.90,  12.44,  -0.41,  (max)
04/19 15Z,   0.10,  11.62,  99.90,  11.32,  -0.41,
04/19 16Z,   0.10,   7.92,  99.90,   7.61,  -0.41,
04/19 17Z,   0.10,   2.35,  99.90,   2.04,  -0.41,
04/19 18Z,   0.10,  -3.90,  99.90,  -4.21,  -0.41,
04/19 19Z,   0.10,  -9.60,  99.90,  -9.91,  -0.41,
04/19 20Z,   0.20, -13.89,  99.90, -14.09,  -0.41,
04/19 21Z,   0.20, -15.80,  99.90, -16.01,  -0.41,  (min)
04/19 22Z,   0.20, -14.07,  99.90, -14.28,  -0.41,
04/19 23Z,   0.30,  -8.71,  99.90,  -8.82,  -0.41,
04/20 00Z,   0.30,  -1.84,  99.90,  -1.95,  -0.41,