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 : 07/18/2025 04:22:20 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/16 12Z,   0.10,  -2.52,  -3.19,  99.90,  -0.77,
07/16 13Z,   0.10,  -1.63,  -2.36,  99.90,  -0.83,  (max)
07/16 14Z,   0.10,  -1.74,  -2.37,  99.90,  -0.73,
07/16 15Z,   0.00,  -2.83,  -3.55,  99.90,  -0.72,
07/16 16Z,   0.10,  -4.65,  -5.27,  99.90,  -0.72,
07/16 17Z,   0.10,  -6.83,  -7.27,  99.90,  -0.54,
07/16 18Z,   0.20,  -8.87,  -9.42,  99.90,  -0.75,
07/16 19Z,   0.20, -10.25, -10.73,  99.90,  -0.68,
07/16 20Z,   0.30, -10.54, -10.96,  99.90,  -0.72,  (min)
07/16 21Z,   0.10,  -9.65, -10.05,  99.90,  -0.50,
07/16 22Z,   0.50,  -7.83,  -8.32,  99.90,  -0.99,
07/16 23Z,   0.30,  -5.53,  -6.19,  99.90,  -0.96,
07/17 00Z,   0.40,  -3.26,  -3.85,  99.90,  -0.99,
07/17 01Z,   0.50,  -1.50,  -2.15,  99.90,  -1.15,
07/17 02Z,   0.50,  -0.66,  -1.32,  99.90,  -1.16,  (max)
07/17 03Z,   0.50,  -0.89,  -1.54,  99.90,  -1.15,
07/17 04Z,   0.50,  -2.07,  -2.72,  99.90,  -1.15,
07/17 05Z,   0.40,  -3.91,  -4.58,  99.90,  -1.07,
07/17 06Z,   0.60,  -5.99,  -6.68,  99.90,  -1.29,
07/17 07Z,   0.60,  -7.80,  -8.46,  99.90,  -1.26,
07/17 08Z,   0.70,  -8.85,  -9.49,  99.90,  -1.34,  (min)
07/17 09Z,   0.70,  -8.88,  -9.42,  99.90,  -1.24,
07/17 10Z,   0.60,  -7.97,  -8.60,  99.90,  -1.23,
07/17 11Z,   0.60,  -6.48,  -7.22,  99.90,  -1.34,
07/17 12Z,   0.60,  -4.81,  -5.51,  99.90,  -1.30,
07/17 13Z,   0.60,  -3.39,  -4.13,  99.90,  -1.34,
07/17 14Z,   0.60,  -2.62,  -3.36,  99.90,  -1.34,  (max)
07/17 15Z,   0.50,  -2.71,  -3.42,  99.90,  -1.21,
07/17 16Z,   0.50,  -3.63,  -4.38,  99.90,  -1.25,
07/17 17Z,   0.50,  -5.14,  -5.83,  99.90,  -1.19,
07/17 18Z,   0.50,  -6.89,  -7.53,  99.90,  -1.14,
07/17 19Z,   0.50,  -8.45,  -9.16,  99.90,  -1.21,
07/17 20Z,   0.50,  -9.38, -10.08,  99.90,  -1.20,  (min)
07/17 21Z,   0.50,  -9.32,  -9.87,  99.90,  -1.05,
07/17 22Z,   0.60,  -8.26,  -8.75,  99.90,  -1.09,
07/17 23Z,   0.60,  -6.47,  -7.03,  99.90,  -1.16,
07/18 00Z,   0.60,  -4.36,  -4.99,  99.90,  -1.23,
07/18 01Z,   0.60,  -2.37,  -2.83,  99.90,  -1.06,
07/18 02Z,   0.50,  -0.93,  -1.51,  99.90,  -1.08,
07/18 03Z,   0.60,  -0.38,  -1.16,  99.90,  -1.38,  (max)
07/18 04Z,   0.60,  -0.83,  -1.53,  99.90,  -1.30,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
07/18 05Z,   0.70,  -2.16,  99.90,  -2.72,  -1.27,
07/18 06Z,   0.60,  -4.06,  99.90,  -4.70,  -1.23,
07/18 07Z,   0.70,  -6.17,  99.90,  -6.67,  -1.20,
07/18 08Z,   0.80,  -7.99,  99.90,  -8.36,  -1.17,
07/18 09Z,   0.80,  -9.08,  99.90,  -9.42,  -1.14,
07/18 10Z,   0.80,  -9.22,  99.90,  -9.53,  -1.11,  (min)
07/18 11Z,   0.80,  -8.51,  99.90,  -8.78,  -1.08,
07/18 12Z,   0.80,  -7.23,  99.90,  -7.47,  -1.04,
07/18 13Z,   0.70,  -5.74,  99.90,  -6.05,  -1.01,
07/18 14Z,   0.60,  -4.41,  99.90,  -4.79,  -0.98,
07/18 15Z,   0.60,  -3.60,  99.90,  -3.95,  -0.95,
07/18 16Z,   0.60,  -3.50,  99.90,  -3.82,  -0.92,  (max)
07/18 17Z,   0.60,  -4.10,  99.90,  -4.42,  -0.92,
07/18 18Z,   0.60,  -5.20,  99.90,  -5.51,  -0.92,
07/18 19Z,   0.60,  -6.51,  99.90,  -6.83,  -0.92,
07/18 20Z,   0.70,  -7.68,  99.90,  -7.90,  -0.92,
07/18 21Z,   0.70,  -8.31,  99.90,  -8.52,  -0.92,  (min)
07/18 22Z,   0.70,  -8.10,  99.90,  -8.32,  -0.92,
07/18 23Z,   0.70,  -7.07,  99.90,  -7.28,  -0.92,
07/19 00Z,   0.70,  -5.45,  99.90,  -5.66,  -0.92,
07/19 01Z,   0.70,  -3.57,  99.90,  -3.79,  -0.92,
07/19 02Z,   0.70,  -1.82,  99.90,  -2.04,  -0.92,
07/19 03Z,   0.70,  -0.59,  99.90,  -0.81,  -0.92,
07/19 04Z,   0.70,  -0.19,  99.90,  -0.41,  -0.92,  (max)
07/19 05Z,   0.70,  -0.73,  99.90,  -0.95,  -0.92,
07/19 06Z,   0.80,  -2.09,  99.90,  -2.21,  -0.92,
07/19 07Z,   0.80,  -4.02,  99.90,  -4.14,  -0.92,
07/19 08Z,   0.80,  -6.17,  99.90,  -6.29,  -0.92,
07/19 09Z,   0.80,  -8.09,  99.90,  -8.21,  -0.92,
07/19 10Z,   0.80,  -9.34,  99.90,  -9.46,  -0.92,
07/19 11Z,   0.80,  -9.71,  99.90,  -9.82,  -0.92,  (min)
07/19 12Z,   0.80,  -9.25,  99.90,  -9.36,  -0.92,
07/19 13Z,   0.80,  -8.17,  99.90,  -8.29,  -0.92,
07/19 14Z,   0.70,  -6.77,  99.90,  -6.99,  -0.92,
07/19 15Z,   0.70,  -5.38,  99.90,  -5.60,  -0.92,
07/19 16Z,   0.70,  -4.37,  99.90,  -4.59,  -0.92,
07/19 17Z,   0.70,  -3.96,  99.90,  -4.18,  -0.92,  (max)
07/19 18Z,   0.70,  -4.17,  99.90,  -4.38,  -0.92,
07/19 19Z,   0.80,  -4.86,  99.90,  -4.98,  -0.92,
07/19 20Z,   0.80,  -5.84,  99.90,  -5.96,  -0.92,
07/19 21Z,   0.80,  -6.78,  99.90,  -6.90,  -0.92,
07/19 22Z,   0.80,  -7.30,  99.90,  -7.42,  -0.92,  (min)
07/19 23Z,   0.80,  -7.14,  99.90,  -7.26,  -0.92,
07/20 00Z,   0.80,  -6.27,  99.90,  -6.39,  -0.92,
07/20 01Z,   0.80,  -4.86,  99.90,  -4.98,  -0.92,
07/20 02Z,   0.80,  -3.18,  99.90,  -3.30,  -0.92,
07/20 03Z,   0.80,  -1.55,  99.90,  -1.67,  -0.92,
07/20 04Z,   0.80,  -0.38,  99.90,  -0.50,  -0.92,
07/20 05Z,   0.70,   0.01,  99.90,  -0.21,  -0.92,  (max)
07/20 06Z,   0.70,  -0.51,  99.90,  -0.73,  -0.92,
07/20 07Z,   0.70,  -1.86,  99.90,  -2.07,  -0.92,
07/20 08Z,   0.70,  -3.82,  99.90,  -4.04,  -0.92,
07/20 09Z,   0.70,  -6.09,  99.90,  -6.31,  -0.92,
07/20 10Z,   0.70,  -8.20,  99.90,  -8.42,  -0.92,
07/20 11Z,   0.70,  -9.70,  99.90,  -9.92,  -0.92,
07/20 12Z,   0.70, -10.35,  99.90, -10.57,  -0.92,  (min)
07/20 13Z,   0.60, -10.12,  99.90, -10.43,  -0.92,
07/20 14Z,   0.60,  -9.15,  99.90,  -9.47,  -0.92,
07/20 15Z,   0.60,  -7.70,  99.90,  -8.01,  -0.92,
07/20 16Z,   0.60,  -6.11,  99.90,  -6.43,  -0.92,
07/20 17Z,   0.60,  -4.80,  99.90,  -5.12,  -0.92,
07/20 18Z,   0.70,  -4.02,  99.90,  -4.24,  -0.92,
07/20 19Z,   0.70,  -3.86,  99.90,  -4.08,  -0.92,  (max)
07/20 20Z,   0.70,  -4.27,  99.90,  -4.48,  -0.92,
07/20 21Z,   0.70,  -5.07,  99.90,  -5.29,  -0.92,
07/20 22Z,   0.60,  -5.98,  99.90,  -6.29,  -0.92,
07/20 23Z,   0.60,  -6.59,  99.90,  -6.91,  -0.92,
07/21 00Z,   0.60,  -6.61,  99.90,  -6.93,  -0.92,  (min)
07/21 01Z,   0.60,  -5.96,  99.90,  -6.27,  -0.92,
07/21 02Z,   0.60,  -4.71,  99.90,  -5.03,  -0.92,
07/21 03Z,   0.50,  -3.10,  99.90,  -3.52,  -0.92,
07/21 04Z,   0.50,  -1.46,  99.90,  -1.87,  -0.92,
07/21 05Z,   0.60,  -0.21,  99.90,  -0.52,  -0.92,
07/21 06Z,   0.60,   0.28,  99.90,  -0.04,  -0.92,  (max)
07/21 07Z,   0.60,  -0.17,  99.90,  -0.48,  -0.92,
07/21 08Z,   0.60,  -1.51,  99.90,  -1.82,  -0.92,
07/21 09Z,   0.70,  -3.57,  99.90,  -3.79,  -0.92,
07/21 10Z,   0.60,  -6.04,  99.90,  -6.36,  -0.92,
07/21 11Z,   0.60,  -8.42,  99.90,  -8.74,  -0.92,
07/21 12Z,   0.60, -10.21,  99.90, -10.53,  -0.92,
07/21 13Z,   0.60, -11.10,  99.90, -11.42,  -0.92,  (min)
07/21 14Z,   0.60, -11.00,  99.90, -11.32,  -0.92,
07/21 15Z,   0.50, -10.00,  99.90, -10.42,  -0.92,
07/21 16Z,   0.50,  -8.35,  99.90,  -8.77,  -0.92,
07/21 17Z,   0.60,  -6.46,  99.90,  -6.78,  -0.92,
07/21 18Z,   0.60,  -4.81,  99.90,  -5.12,  -0.92,
07/21 19Z,  99.90,  -3.70,  99.90,  99.90,  -0.92,
07/21 20Z,  99.90,  -3.30,  99.90,  99.90,  -0.92,
07/21 21Z,  99.90,  -3.58,  99.90,  99.90,  -0.92,
07/21 22Z,  99.90,  -4.42,  99.90,  99.90,  -0.92,
07/21 23Z,  99.90,  -5.47,  99.90,  99.90,  -0.92,
07/22 00Z,  99.90,  -6.31,  99.90,  99.90,  -0.92,