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 : 05/17/2025 15:24:02 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/16 00Z,   1.10,  -2.71,  -2.62,  99.90,  -1.01,
05/16 01Z,   1.10,  -2.81,  -2.72,  99.90,  -1.01,  (max)
05/16 02Z,   1.10,  -3.61,  -3.57,  99.90,  -1.06,
05/16 03Z,   1.00,  -4.81,  -4.77,  99.90,  -0.96,
05/16 04Z,   1.00,  -6.03,  -5.98,  99.90,  -0.95,
05/16 05Z,   1.00,  -6.82,  -6.88,  99.90,  -1.06,  (min)
05/16 06Z,   1.20,  -6.82,  -6.85,  99.90,  -1.23,
05/16 07Z,   1.20,  -5.95,  -5.94,  99.90,  -1.19,
05/16 08Z,   1.20,  -4.44,  -4.45,  99.90,  -1.21,
05/16 09Z,   1.10,  -2.70,  -2.77,  99.90,  -1.17,
05/16 10Z,   1.10,  -1.18,  -1.18,  99.90,  -1.10,
05/16 11Z,   1.10,  -0.30,  -0.31,  99.90,  -1.11,  (max)
05/16 12Z,   1.20,  -0.37,  -0.38,  99.90,  -1.21,
05/16 13Z,   1.10,  -1.45,  -1.45,  99.90,  -1.10,
05/16 14Z,   1.00,  -3.34,  -3.36,  99.90,  -1.02,
05/16 15Z,   1.00,  -5.70,  -5.76,  99.90,  -1.06,
05/16 16Z,   0.90,  -8.12,  -8.21,  99.90,  -0.99,
05/16 17Z,   1.00, -10.12, -10.25,  99.90,  -1.13,
05/16 18Z,   1.10, -11.24, -11.30,  99.90,  -1.16,
05/16 19Z,   1.10, -11.24, -11.33,  99.90,  -1.19,  (min)
05/16 20Z,   1.10, -10.22, -10.24,  99.90,  -1.12,
05/16 21Z,   1.10,  -8.50,  -8.37,  99.90,  -0.97,
05/16 22Z,   1.10,  -6.52,  -6.44,  99.90,  -1.02,
05/16 23Z,   1.10,  -4.70,  -4.67,  99.90,  -1.07,
05/17 00Z,   1.10,  -3.45,  -3.45,  99.90,  -1.10,
05/17 01Z,   1.10,  -2.98,  -3.01,  99.90,  -1.13,  (max)
05/17 02Z,   1.10,  -3.27,  -3.25,  99.90,  -1.08,
05/17 03Z,   1.00,  -4.10,  -4.13,  99.90,  -1.03,
05/17 04Z,   1.00,  -5.18,  -5.29,  99.90,  -1.11,
05/17 05Z,   1.00,  -6.17,  -6.42,  99.90,  -1.25,
05/17 06Z,   1.10,  -6.65,  -6.73,  99.90,  -1.18,  (min)
05/17 07Z,   1.00,  -6.37,  -6.47,  99.90,  -1.10,
05/17 08Z,   1.00,  -5.34,  -5.38,  99.90,  -1.04,
05/17 09Z,   1.00,  -3.85,  -3.91,  99.90,  -1.06,
05/17 10Z,   1.00,  -2.32,  -2.37,  99.90,  -1.05,
05/17 11Z,   1.00,  -1.13,  -1.21,  99.90,  -1.08,
05/17 12Z,   1.00,  -0.62,  -0.73,  99.90,  -1.11,  (max)
05/17 13Z,   1.00,  -1.02,  -1.16,  99.90,  -1.14,
05/17 14Z,   1.00,  -2.31,  -2.39,  99.90,  -1.08,
05/17 15Z,   1.00,  -4.24,  -4.32,  99.90,  -1.08,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
05/17 16Z,   0.90,  -6.48,  99.90,  -6.66,  -1.08,
05/17 17Z,   0.90,  -8.64,  99.90,  -8.82,  -1.08,
05/17 18Z,   0.90, -10.29,  99.90, -10.47,  -1.08,
05/17 19Z,   0.90, -11.04,  99.90, -11.22,  -1.07,  (min)
05/17 20Z,   0.90, -10.76,  99.90, -10.93,  -1.07,
05/17 21Z,   0.80,  -9.61,  99.90,  -9.87,  -1.07,
05/17 22Z,   0.60,  -7.93,  99.90,  -8.40,  -1.06,
05/17 23Z,   0.80,  -6.12,  99.90,  -6.38,  -1.06,
05/18 00Z,   0.90,  -4.55,  99.90,  -4.71,  -1.06,
05/18 01Z,   0.90,  -3.54,  99.90,  -3.70,  -1.06,
05/18 02Z,   0.60,  -3.24,  99.90,  -3.69,  -1.05,  (max)
05/18 03Z,   0.60,  -3.59,  99.90,  -4.04,  -1.05,
05/18 04Z,   0.80,  -4.38,  99.90,  -4.63,  -1.05,
05/18 05Z,   0.80,  -5.33,  99.90,  -5.58,  -1.05,
05/18 06Z,   0.70,  -6.13,  99.90,  -6.48,  -1.05,
05/18 07Z,   0.70,  -6.42,  99.90,  -6.77,  -1.05,  (min)
05/18 08Z,   0.80,  -6.01,  99.90,  -6.26,  -1.05,
05/18 09Z,   0.80,  -4.98,  99.90,  -5.23,  -1.05,
05/18 10Z,   0.80,  -3.64,  99.90,  -3.89,  -1.05,
05/18 11Z,   0.70,  -2.35,  99.90,  -2.70,  -1.05,
05/18 12Z,   0.70,  -1.44,  99.90,  -1.79,  -1.05,
05/18 13Z,   0.70,  -1.19,  99.90,  -1.53,  -1.05,  (max)
05/18 14Z,   0.60,  -1.74,  99.90,  -2.19,  -1.05,
05/18 15Z,   0.60,  -3.06,  99.90,  -3.51,  -1.05,
05/18 16Z,   0.40,  -4.90,  99.90,  -5.55,  -1.05,
05/18 17Z,   0.50,  -6.94,  99.90,  -7.49,  -1.05,
05/18 18Z,   0.50,  -8.85,  99.90,  -9.40,  -1.05,
05/18 19Z,   0.50, -10.21,  99.90, -10.76,  -1.05,
05/18 20Z,   0.40, -10.71,  99.90, -11.36,  -1.05,  (min)
05/18 21Z,   0.50, -10.28,  99.90, -10.83,  -1.05,
05/18 22Z,   0.60,  -9.11,  99.90,  -9.56,  -1.05,
05/18 23Z,   0.60,  -7.52,  99.90,  -7.97,  -1.05,
05/19 00Z,   0.60,  -5.86,  99.90,  -6.31,  -1.05,
05/19 01Z,   0.60,  -4.44,  99.90,  -4.89,  -1.05,
05/19 02Z,   0.60,  -3.55,  99.90,  -4.00,  -1.05,
05/19 03Z,   0.60,  -3.31,  99.90,  -3.76,  -1.05,  (max)
05/19 04Z,   0.50,  -3.66,  99.90,  -4.21,  -1.05,
05/19 05Z,   0.50,  -4.41,  99.90,  -4.96,  -1.05,
05/19 06Z,   0.60,  -5.31,  99.90,  -5.76,  -1.05,
05/19 07Z,   0.60,  -6.05,  99.90,  -6.50,  -1.05,
05/19 08Z,   0.60,  -6.31,  99.90,  -6.76,  -1.05,  (min)
05/19 09Z,   0.60,  -5.94,  99.90,  -6.38,  -1.05,
05/19 10Z,   0.70,  -5.04,  99.90,  -5.38,  -1.05,
05/19 11Z,   0.90,  -3.89,  99.90,  -4.04,  -1.05,
05/19 12Z,   0.50,  -2.79,  99.90,  -3.34,  -1.05,
05/19 13Z,   0.90,  -2.03,  99.90,  -2.18,  -1.05,  (max)
05/19 14Z,   0.70,  -1.85,  99.90,  -2.20,  -1.05,
05/19 15Z,   0.80,  -2.39,  99.90,  -2.64,  -1.05,
05/19 16Z,   1.00,  -3.59,  99.90,  -3.64,  -1.05,
05/19 17Z,   0.90,  -5.25,  99.90,  -5.40,  -1.05,
05/19 18Z,   0.90,  -7.10,  99.90,  -7.25,  -1.05,
05/19 19Z,   1.00,  -8.80,  99.90,  -8.84,  -1.05,
05/19 20Z,   1.10,  -9.97,  99.90,  -9.92,  -1.05,
05/19 21Z,   1.00, -10.34,  99.90, -10.39,  -1.05,  (min)
05/19 22Z,   0.90,  -9.86,  99.90, -10.00,  -1.05,
05/19 23Z,   1.00,  -8.71,  99.90,  -8.76,  -1.05,
05/20 00Z,   1.10,  -7.18,  99.90,  -7.13,  -1.05,
05/20 01Z,   1.00,  -5.57,  99.90,  -5.62,  -1.05,
05/20 02Z,   1.00,  -4.19,  99.90,  -4.23,  -1.05,
05/20 03Z,   1.00,  -3.31,  99.90,  -3.36,  -1.05,
05/20 04Z,   1.00,  -3.09,  99.90,  -3.14,  -1.05,  (max)
05/20 05Z,   1.10,  -3.45,  99.90,  -3.40,  -1.05,
05/20 06Z,   1.10,  -4.24,  99.90,  -4.19,  -1.05,
05/20 07Z,   1.10,  -5.22,  99.90,  -5.17,  -1.05,
05/20 08Z,   1.10,  -6.07,  99.90,  -6.02,  -1.05,
05/20 09Z,   1.10,  -6.48,  99.90,  -6.43,  -1.05,  (min)
05/20 10Z,   1.10,  -6.28,  99.90,  -6.23,  -1.05,
05/20 11Z,   1.10,  -5.57,  99.90,  -5.52,  -1.05,
05/20 12Z,   1.00,  -4.58,  99.90,  -4.62,  -1.05,
05/20 13Z,   1.00,  -3.55,  99.90,  -3.60,  -1.05,
05/20 14Z,   1.00,  -2.76,  99.90,  -2.81,  -1.05,
05/20 15Z,   1.00,  -2.46,  99.90,  -2.51,  -1.05,  (max)
05/20 16Z,   0.90,  -2.83,  99.90,  -2.98,  -1.05,
05/20 17Z,   0.90,  -3.84,  99.90,  -3.99,  -1.05,
05/20 18Z,   0.90,  -5.30,  99.90,  -5.45,  -1.05,
05/20 19Z,   0.90,  -6.98,  99.90,  -7.13,  -1.05,
05/20 20Z,   0.90,  -8.56,  99.90,  -8.71,  -1.05,
05/20 21Z,   0.90,  -9.65,  99.90,  -9.80,  -1.05,
05/20 22Z,   0.70,  -9.98,  99.90, -10.33,  -1.05,  (min)
05/20 23Z,   0.90,  -9.49,  99.90,  -9.64,  -1.05,
05/21 00Z,   0.90,  -8.34,  99.90,  -8.49,  -1.05,
05/21 01Z,   0.70,  -6.79,  99.90,  -7.14,  -1.05,
05/21 02Z,   0.60,  -5.11,  99.90,  -5.56,  -1.05,
05/21 03Z,   0.70,  -3.66,  99.90,  -4.01,  -1.05,
05/21 04Z,   0.70,  -2.76,  99.90,  -3.11,  -1.05,
05/21 05Z,   0.60,  -2.55,  99.90,  -3.00,  -1.05,  (max)
05/21 06Z,   0.60,  -3.01,  99.90,  -3.46,  -1.05,
05/21 07Z,  99.90,  -3.98,  99.90,  99.90,  -1.05,
05/21 08Z,  99.90,  -5.22,  99.90,  99.90,  -1.05,
05/21 09Z,  99.90,  -6.36,  99.90,  99.90,  -1.05,
05/21 10Z,  99.90,  -7.05,  99.90,  99.90,  -1.05,
05/21 11Z,  99.90,  -7.10,  99.90,  99.90,  -1.05,
05/21 12Z,  99.90,  -6.55,  99.90,  99.90,  -1.05,