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
#Seward, AK : 03/16/2026 05:24:19 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/14 12Z,   0.60,  -5.45,  -6.40,  99.90,  -1.55,
03/14 13Z,   0.70,  -5.58,  -6.50,  99.90,  -1.62,  (min)
03/14 14Z,   0.70,  -5.30,  -6.23,  99.90,  -1.63,
03/14 15Z,   0.70,  -4.61,  -5.48,  99.90,  -1.57,
03/14 16Z,   0.70,  -3.64,  -4.59,  99.90,  -1.65,
03/14 17Z,   0.70,  -2.66,  -3.65,  99.90,  -1.69,
03/14 18Z,   0.60,  -2.01,  -3.03,  99.90,  -1.62,
03/14 19Z,   0.70,  -1.88,  -2.78,  99.90,  -1.60,  (max)
03/14 20Z,   0.60,  -2.37,  -3.24,  99.90,  -1.47,
03/14 21Z,   0.70,  -3.47,  -4.37,  99.90,  -1.60,
03/14 22Z,   0.70,  -5.06,  -6.03,  99.90,  -1.67,
03/14 23Z,   0.70,  -6.82,  -7.77,  99.90,  -1.65,
03/15 00Z,   0.60,  -8.37,  -9.18,  99.90,  -1.41,
03/15 01Z,   0.60,  -9.37, -10.45,  99.90,  -1.68,
03/15 02Z,   0.60,  -9.66, -10.63,  99.90,  -1.57,  (min)
03/15 03Z,   0.60,  -9.18, -10.18,  99.90,  -1.60,
03/15 04Z,   0.60,  -7.99,  -8.94,  99.90,  -1.55,
03/15 05Z,   0.60,  -6.39,  -7.24,  99.90,  -1.45,
03/15 06Z,   0.50,  -4.77,  -5.76,  99.90,  -1.49,
03/15 07Z,   0.50,  -3.52,  -4.46,  99.90,  -1.44,
03/15 08Z,   0.60,  -2.85,  -3.74,  99.90,  -1.49,  (max)
03/15 09Z,   0.60,  -2.86,  -3.83,  99.90,  -1.57,
03/15 10Z,   0.50,  -3.50,  -4.43,  99.90,  -1.43,
03/15 11Z,   0.40,  -4.56,  -5.24,  99.90,  -1.08,
03/15 12Z,   0.40,  -5.65,  -6.39,  99.90,  -1.14,
03/15 13Z,   0.40,  -6.39,  -7.14,  99.90,  -1.15,
03/15 14Z,   0.50,  -6.57,  -7.34,  99.90,  -1.27,  (min)
03/15 15Z,   0.40,  -6.09,  -6.93,  99.90,  -1.24,
03/15 16Z,   0.30,  -5.02,  -5.81,  99.90,  -1.09,
03/15 17Z,   0.40,  -3.60,  -4.33,  99.90,  -1.13,
03/15 18Z,   0.50,  -2.25,  -3.02,  99.90,  -1.27,
03/15 19Z,   0.60,  -1.39,  -2.19,  99.90,  -1.40,
03/15 20Z,   0.60,  -1.27,  -1.91,  99.90,  -1.24,  (max)
03/15 21Z,   0.60,  -1.98,  -2.62,  99.90,  -1.24,
03/15 22Z,   0.80,  -3.46,  -4.13,  99.90,  -1.47,
03/15 23Z,   0.90,  -5.48,  -5.99,  99.90,  -1.41,
03/16 00Z,   1.00,  -7.61,  -8.04,  99.90,  -1.43,
03/16 01Z,   1.00,  -9.33,  -9.85,  99.90,  -1.52,
03/16 02Z,   1.00, -10.26, -10.85,  99.90,  -1.59,  (min)
03/16 03Z,   1.30, -10.23, -10.75,  99.90,  -1.82,
03/16 04Z,   1.30,  -9.23,  -9.71,  99.90,  -1.78,
03/16 05Z,   1.30,  -7.48,  -8.00,  99.90,  -1.82,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/16 06Z,   1.50,  -5.41,  99.90,  -5.71,  -1.80,
03/16 07Z,   1.30,  -3.56,  99.90,  -4.03,  -1.78,
03/16 08Z,   1.40,  -2.34,  99.90,  -2.69,  -1.75,
03/16 09Z,   1.50,  -1.97,  99.90,  -2.20,  -1.73,  (max)
03/16 10Z,   1.50,  -2.49,  99.90,  -2.70,  -1.71,
03/16 11Z,   1.60,  -3.73,  99.90,  -3.82,  -1.69,
03/16 12Z,   1.60,  -5.34,  99.90,  -5.41,  -1.67,
03/16 13Z,   1.70,  -6.79,  99.90,  -6.73,  -1.64,
03/16 14Z,   1.70,  -7.62,  99.90,  -7.54,  -1.62,
03/16 15Z,   1.60,  -7.59,  99.90,  -7.59,  -1.60,  (min)
03/16 16Z,   1.90,  -6.68,  99.90,  -6.36,  -1.58,
03/16 17Z,   1.70,  -5.09,  99.90,  -4.94,  -1.55,
03/16 18Z,   1.70,  -3.20,  99.90,  -3.05,  -1.55,
03/16 19Z,   1.60,  -1.57,  99.90,  -1.52,  -1.55,
03/16 20Z,   1.80,  -0.68,  99.90,  -0.43,  -1.55,  (max)
03/16 21Z,   1.60,  -0.77,  99.90,  -0.73,  -1.55,
03/16 22Z,   1.50,  -1.89,  99.90,  -1.94,  -1.55,
03/16 23Z,   1.50,  -3.86,  99.90,  -3.91,  -1.55,
03/17 00Z,   1.60,  -6.31,  99.90,  -6.27,  -1.55,
03/17 01Z,   1.60,  -8.66,  99.90,  -8.62,  -1.55,
03/17 02Z,   1.30, -10.32,  99.90, -10.58,  -1.55,
03/17 03Z,   1.50, -10.90,  99.90, -10.96,  -1.55,  (min)
03/17 04Z,   1.70, -10.29,  99.90, -10.15,  -1.55,
03/17 05Z,   1.70,  -8.64,  99.90,  -8.49,  -1.55,
03/17 06Z,   1.60,  -6.32,  99.90,  -6.27,  -1.55,
03/17 07Z,   1.90,  -3.93,  99.90,  -3.58,  -1.55,
03/17 08Z,   2.00,  -2.08,  99.90,  -1.63,  -1.55,
03/17 09Z,   2.00,  -1.18,  99.90,  -0.73,  -1.55,  (max)
03/17 10Z,   1.90,  -1.37,  99.90,  -1.03,  -1.55,
03/17 11Z,   2.10,  -2.59,  99.90,  -2.04,  -1.55,
03/17 12Z,   2.10,  -4.51,  99.90,  -3.96,  -1.55,
03/17 13Z,   1.90,  -6.60,  99.90,  -6.25,  -1.55,
03/17 14Z,   1.70,  -8.22,  99.90,  -8.07,  -1.55,
03/17 15Z,   1.70,  -8.89,  99.90,  -8.75,  -1.55,  (min)
03/17 16Z,   1.80,  -8.43,  99.90,  -8.19,  -1.55,
03/17 17Z,   1.60,  -6.95,  99.90,  -6.90,  -1.55,
03/17 18Z,   1.50,  -4.79,  99.90,  -4.85,  -1.55,
03/17 19Z,   1.60,  -2.53,  99.90,  -2.48,  -1.55,
03/17 20Z,   1.80,  -0.80,  99.90,  -0.55,  -1.55,
03/17 21Z,   1.70,  -0.09,  99.90,   0.06,  -1.55,  (max)
03/17 22Z,   1.70,  -0.58,  99.90,  -0.43,  -1.55,
03/17 23Z,   1.80,  -2.19,  99.90,  -1.95,  -1.55,
03/18 00Z,   1.80,  -4.64,  99.90,  -4.39,  -1.55,
03/18 01Z,   1.80,  -7.38,  99.90,  -7.13,  -1.55,
03/18 02Z,   1.70,  -9.71,  99.90,  -9.57,  -1.55,
03/18 03Z,   1.70, -11.03,  99.90, -10.89,  -1.55,
03/18 04Z,   1.60, -11.02,  99.90, -10.97,  -1.55,  (min)
03/18 05Z,   1.50,  -9.70,  99.90,  -9.75,  -1.55,
03/18 06Z,   1.40,  -7.39,  99.90,  -7.54,  -1.55,
03/18 07Z,   1.40,  -4.65,  99.90,  -4.80,  -1.55,
03/18 08Z,   1.40,  -2.19,  99.90,  -2.34,  -1.55,
03/18 09Z,   1.40,  -0.63,  99.90,  -0.78,  -1.55,
03/18 10Z,   1.40,  -0.31,  99.90,  -0.47,  -1.55,  (max)
03/18 11Z,   1.40,  -1.26,  99.90,  -1.41,  -1.55,
03/18 12Z,   1.30,  -3.22,  99.90,  -3.47,  -1.55,
03/18 13Z,   1.30,  -5.74,  99.90,  -5.99,  -1.55,
03/18 14Z,   1.30,  -8.13,  99.90,  -8.38,  -1.55,
03/18 15Z,   1.30,  -9.68,  99.90,  -9.94,  -1.55,
03/18 16Z,   1.30,  -9.97,  99.90, -10.22,  -1.55,  (min)
03/18 17Z,   1.30,  -8.94,  99.90,  -9.19,  -1.55,
03/18 18Z,   1.30,  -6.85,  99.90,  -7.10,  -1.55,
03/18 19Z,   1.50,  -4.24,  99.90,  -4.29,  -1.55,
03/18 20Z,   1.50,  -1.78,  99.90,  -1.83,  -1.55,
03/18 21Z,   1.50,  -0.16,  99.90,  -0.22,  -1.55,
03/18 22Z,   1.50,   0.19,  99.90,   0.14,  -1.55,  (max)
03/18 23Z,   1.50,  -0.78,  99.90,  -0.83,  -1.55,
03/19 00Z,   1.50,  -2.87,  99.90,  -2.92,  -1.55,
03/19 01Z,   1.50,  -5.64,  99.90,  -5.69,  -1.55,
03/19 02Z,   1.40,  -8.42,  99.90,  -8.57,  -1.55,
03/19 03Z,   1.40, -10.47,  99.90, -10.62,  -1.55,
03/19 04Z,   1.40, -11.21,  99.90, -11.37,  -1.55,  (min)
03/19 05Z,   1.30, -10.47,  99.90, -10.72,  -1.55,
03/19 06Z,   1.30,  -8.45,  99.90,  -8.70,  -1.55,
03/19 07Z,   1.30,  -5.64,  99.90,  -5.90,  -1.55,
03/19 08Z,   1.40,  -2.75,  99.90,  -2.90,  -1.55,
03/19 09Z,   1.30,  -0.52,  99.90,  -0.77,  -1.55,
03/19 10Z,   1.30,   0.48,  99.90,   0.23,  -1.55,  (max)
03/19 11Z,   1.40,   0.05,  99.90,  -0.10,  -1.55,
03/19 12Z,   1.40,  -1.68,  99.90,  -1.83,  -1.55,
03/19 13Z,   1.40,  -4.31,  99.90,  -4.46,  -1.55,
03/19 14Z,   1.40,  -7.23,  99.90,  -7.38,  -1.55,
03/19 15Z,   1.40,  -9.66,  99.90,  -9.81,  -1.55,
03/19 16Z,   1.40, -10.92,  99.90, -11.07,  -1.55,  (min)
03/19 17Z,   1.40, -10.67,  99.90, -10.82,  -1.55,
03/19 18Z,   1.30,  -9.04,  99.90,  -9.29,  -1.55,
03/19 19Z,   1.40,  -6.45,  99.90,  -6.61,  -1.55,
03/19 20Z,   1.50,  -3.58,  99.90,  -3.63,  -1.55,
03/19 21Z,   1.40,  -1.17,  99.90,  -1.32,  -1.55,
03/19 22Z,   1.40,   0.14,  99.90,  -0.01,  -1.55,  (max)
03/19 23Z,   1.40,   0.06,  99.90,  -0.10,  -1.55,
03/20 00Z,   1.40,  -1.37,  99.90,  -1.52,  -1.55,