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 : 07/22/2026 22:22:46 GMT (units in feet HAT)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/21 06Z,   0.60,  -7.89,  -8.39,  99.90,  -1.10,
07/21 07Z,   0.70,  -9.81, -10.27,  99.90,  -1.16,
07/21 08Z,   0.70, -11.29, -11.89,  99.90,  -1.30,
07/21 09Z,   0.60, -11.98, -12.51,  99.90,  -1.13,  (min)
07/21 10Z,   0.60, -11.83, -12.25,  99.90,  -1.02,
07/21 11Z,   0.60, -10.98, -11.51,  99.90,  -1.13,
07/21 12Z,   0.60,  -9.69, -10.28,  99.90,  -1.19,
07/21 13Z,   0.50,  -8.31,  -8.92,  99.90,  -1.11,
07/21 14Z,   0.50,  -7.23,  -7.93,  99.90,  -1.20,
07/21 15Z,   0.50,  -6.73,  -7.48,  99.90,  -1.25,  (max)
07/21 16Z,   0.50,  -6.90,  -7.63,  99.90,  -1.23,
07/21 17Z,   0.50,  -7.65,  -8.31,  99.90,  -1.16,
07/21 18Z,   0.60,  -8.81,  -9.43,  99.90,  -1.22,
07/21 19Z,   0.60, -10.07, -10.64,  99.90,  -1.17,
07/21 20Z,   0.60, -11.02,  99.90,  99.90,  99.90,
07/21 21Z,   0.60, -11.31,  99.90,  99.90,  99.90,
07/21 22Z,   0.50, -10.83,  99.90,  99.90,  99.90,
07/21 23Z,   0.60,  -9.69,  99.90,  99.90,  99.90,  (min)
07/22 00Z,   0.60,  -8.15,  -8.65,  99.90,  -1.10,
07/22 01Z,   0.60,  -6.49,  -7.12,  99.90,  -1.23,
07/22 02Z,   0.60,  -5.10,  -5.85,  99.90,  -1.35,
07/22 03Z,   0.60,  -4.32,  -4.97,  99.90,  -1.25,  (max)
07/22 04Z,   0.60,  -4.30,  -5.03,  99.90,  -1.33,
07/22 05Z,   0.50,  -5.03,  -5.74,  99.90,  -1.21,
07/22 06Z,   0.60,  -6.37,  -6.90,  99.90,  -1.13,
07/22 07Z,   0.60,  -8.09,  -8.66,  99.90,  -1.17,
07/22 08Z,   0.60,  -9.82, -10.39,  99.90,  -1.17,
07/22 09Z,   0.60, -11.15, -11.61,  99.90,  -1.06,
07/22 10Z,   0.60, -11.83, -12.41,  99.90,  -1.18,  (min)
07/22 11Z,   0.60, -11.82, -12.40,  99.90,  -1.18,
07/22 12Z,   0.60, -11.22, -11.81,  99.90,  -1.19,
07/22 13Z,   0.60, -10.20, -10.87,  99.90,  -1.27,
07/22 14Z,   0.60,  -9.05,  -9.76,  99.90,  -1.31,
07/22 15Z,   0.50,  -8.08,  -8.96,  99.90,  -1.38,
07/22 16Z,   0.50,  -7.54,  -8.33,  99.90,  -1.29,
07/22 17Z,   0.50,  -7.50,  -8.27,  99.90,  -1.27,  (max)
07/22 18Z,   0.50,  -7.90,  -8.61,  99.90,  -1.21,
07/22 19Z,   0.50,  -8.64,  -9.21,  99.90,  -1.07,
07/22 20Z,   0.50,  -9.46,  -9.99,  99.90,  -1.03,
07/22 21Z,   0.60, -10.06, -10.61,  99.90,  -1.15,
07/22 22Z,   0.60, -10.15, -10.86,  99.90,  -1.31,  (min)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/22 23Z,   0.50,  -9.68,  99.90, -10.47,  -1.29,
07/23 00Z,   0.60,  -8.74,  99.90,  -9.41,  -1.27,
07/23 01Z,   0.50,  -7.49,  99.90,  -8.24,  -1.25,
07/23 02Z,   0.50,  -6.17,  99.90,  -6.90,  -1.23,
07/23 03Z,   0.60,  -5.08,  99.90,  -5.69,  -1.21,
07/23 04Z,   0.60,  -4.51,  99.90,  -5.09,  -1.19,  (max)
07/23 05Z,   0.60,  -4.58,  99.90,  -5.15,  -1.17,
07/23 06Z,   0.30,  -5.30,  99.90,  -6.14,  -1.15,
07/23 07Z,   0.70,  -6.55,  99.90,  -6.98,  -1.13,
07/23 08Z,   0.60,  -8.15,  99.90,  -8.66,  -1.11,
07/23 09Z,   0.50,  -9.79,  99.90, -10.37,  -1.09,
07/23 10Z,   0.60, -11.10,  99.90, -11.57,  -1.07,
07/23 11Z,   0.70, -11.86,  99.90, -12.23,  -1.07,
07/23 12Z,   0.80, -12.02,  99.90, -12.29,  -1.07,  (min)
07/23 13Z,   0.60, -11.61,  99.90, -12.08,  -1.07,
07/23 14Z,   0.70, -10.75,  99.90, -11.12,  -1.07,
07/23 15Z,   0.80,  -9.66,  99.90,  -9.93,  -1.07,
07/23 16Z,   0.70,  -8.66,  99.90,  -9.03,  -1.07,
07/23 17Z,   0.70,  -7.96,  99.90,  -8.33,  -1.07,
07/23 18Z,   0.80,  -7.66,  99.90,  -7.93,  -1.07,
07/23 19Z,   1.00,  -7.76,  99.90,  -7.82,  -1.07,  (max)
07/23 20Z,   1.00,  -8.19,  99.90,  -8.26,  -1.07,
07/23 21Z,   1.00,  -8.77,  99.90,  -8.84,  -1.07,
07/23 22Z,   1.00,  -9.23,  99.90,  -9.29,  -1.07,  (min)
07/23 23Z,   1.10,  -9.32,  99.90,  -9.29,  -1.07,
07/24 00Z,   1.00,  -8.98,  99.90,  -9.05,  -1.07,
07/24 01Z,   1.00,  -8.24,  99.90,  -8.31,  -1.07,
07/24 02Z,   1.00,  -7.21,  99.90,  -7.28,  -1.07,
07/24 03Z,   1.10,  -6.07,  99.90,  -6.04,  -1.07,
07/24 04Z,   0.90,  -5.12,  99.90,  -5.29,  -1.07,
07/24 05Z,   0.90,  -4.61,  99.90,  -4.78,  -1.07,
07/24 06Z,   1.00,  -4.70,  99.90,  -4.76,  -1.07,  (max)
07/24 07Z,   1.10,  -5.37,  99.90,  -5.34,  -1.07,
07/24 08Z,   1.00,  -6.59,  99.90,  -6.66,  -1.07,
07/24 09Z,   1.00,  -8.18,  99.90,  -8.25,  -1.07,
07/24 10Z,   1.10,  -9.85,  99.90,  -9.82,  -1.07,
07/24 11Z,   0.90, -11.25,  99.90, -11.41,  -1.07,
07/24 12Z,   0.80, -12.14,  99.90, -12.41,  -1.07,
07/24 13Z,   0.80, -12.43,  99.90, -12.69,  -1.07,  (min)
07/24 14Z,   0.90, -12.09,  99.90, -12.26,  -1.07,
07/24 15Z,   0.80, -11.21,  99.90, -11.48,  -1.07,
07/24 16Z,   0.80, -10.03,  99.90, -10.29,  -1.07,
07/24 17Z,   1.00,  -8.86,  99.90,  -8.92,  -1.07,
07/24 18Z,   0.90,  -7.95,  99.90,  -8.12,  -1.07,
07/24 19Z,   0.90,  -7.43,  99.90,  -7.60,  -1.07,
07/24 20Z,   1.00,  -7.35,  99.90,  -7.42,  -1.07,  (max)
07/24 21Z,   1.00,  -7.67,  99.90,  -7.74,  -1.07,
07/24 22Z,   1.00,  -8.22,  99.90,  -8.29,  -1.07,
07/24 23Z,   0.90,  -8.72,  99.90,  -8.89,  -1.07,
07/25 00Z,   1.00,  -8.93,  99.90,  -8.99,  -1.07,  (min)
07/25 01Z,   0.90,  -8.73,  99.90,  -8.90,  -1.07,
07/25 02Z,   0.80,  -8.12,  99.90,  -8.39,  -1.07,
07/25 03Z,   0.80,  -7.15,  99.90,  -7.42,  -1.07,
07/25 04Z,   0.80,  -6.03,  99.90,  -6.30,  -1.07,
07/25 05Z,   0.90,  -5.06,  99.90,  -5.22,  -1.07,
07/25 06Z,   0.90,  -4.53,  99.90,  -4.70,  -1.07,  (max)
07/25 07Z,   0.90,  -4.60,  99.90,  -4.76,  -1.07,
07/25 08Z,   0.90,  -5.30,  99.90,  -5.47,  -1.07,
07/25 09Z,   0.90,  -6.59,  99.90,  -6.76,  -1.07,
07/25 10Z,   0.90,  -8.32,  99.90,  -8.48,  -1.07,
07/25 11Z,   0.90, -10.13,  99.90, -10.30,  -1.07,
07/25 12Z,   0.80, -11.67,  99.90, -11.94,  -1.07,
07/25 13Z,   0.70, -12.67,  99.90, -13.03,  -1.07,
07/25 14Z,   0.70, -12.96,  99.90, -13.33,  -1.07,  (min)
07/25 15Z,   0.60, -12.53,  99.90, -12.99,  -1.07,
07/25 16Z,   0.80, -11.46,  99.90, -11.72,  -1.07,
07/25 17Z,   0.80, -10.04,  99.90, -10.31,  -1.07,
07/25 18Z,   0.80,  -8.65,  99.90,  -8.92,  -1.07,
07/25 19Z,   0.80,  -7.57,  99.90,  -7.84,  -1.07,
07/25 20Z,   1.00,  -6.95,  99.90,  -7.02,  -1.07,
07/25 21Z,   1.00,  -6.87,  99.90,  -6.93,  -1.07,  (max)
07/25 22Z,   1.00,  -7.28,  99.90,  -7.35,  -1.07,
07/25 23Z,   1.00,  -7.98,  99.90,  -8.04,  -1.07,
07/26 00Z,   1.00,  -8.64,  99.90,  -8.70,  -1.07,
07/26 01Z,   0.90,  -8.97,  99.90,  -9.14,  -1.07,  (min)
07/26 02Z,   0.90,  -8.84,  99.90,  -9.01,  -1.07,
07/26 03Z,   0.90,  -8.20,  99.90,  -8.37,  -1.07,
07/26 04Z,   1.00,  -7.12,  99.90,  -7.19,  -1.07,
07/26 05Z,   1.00,  -5.86,  99.90,  -5.93,  -1.07,
07/26 06Z,   1.00,  -4.79,  99.90,  -4.86,  -1.07,
07/26 07Z,   1.00,  -4.23,  99.90,  -4.30,  -1.07,  (max)
07/26 08Z,   1.10,  -4.35,  99.90,  -4.32,  -1.07,
07/26 09Z,   1.10,  -5.20,  99.90,  -5.17,  -1.07,
07/26 10Z,   1.10,  -6.72,  99.90,  -6.69,  -1.07,
07/26 11Z,   1.00,  -8.70,  99.90,  -8.76,  -1.07,
07/26 12Z,   1.00, -10.73,  99.90, -10.79,  -1.07,
07/26 13Z,  99.90, -12.38,  99.90,  99.90,  -1.07,
07/26 14Z,  99.90, -13.36,  99.90,  99.90,  -1.07,
07/26 15Z,  99.90, -13.50,  99.90,  99.90,  -1.07,
07/26 16Z,  99.90, -12.77,  99.90,  99.90,  -1.07,
07/26 17Z,  99.90, -11.37,  99.90,  99.90,  -1.07,
07/26 18Z,  99.90,  -9.66,  99.90,  99.90,  -1.07,