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 : 03/19/2025 10:21:33 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/17 18Z,   1.10,   0.17,  -0.17,  99.90,  -1.44,  (min)
03/17 19Z,   1.10,   0.86,   0.41,  99.90,  -1.55,
03/17 20Z,   1.10,   2.55,   2.12,  99.90,  -1.53,
03/17 21Z,   1.20,   4.77,   4.36,  99.90,  -1.61,
03/17 22Z,   1.20,   6.97,   6.64,  99.90,  -1.53,
03/17 23Z,   1.30,   8.56,   8.18,  99.90,  -1.68,
03/18 00Z,   1.00,   9.16,   8.73,  99.90,  -1.43,  (max)
03/18 01Z,   0.90,   8.68,   8.20,  99.90,  -1.38,
03/18 02Z,   0.90,   7.34,   6.95,  99.90,  -1.29,
03/18 03Z,   1.00,   5.48,   5.17,  99.90,  -1.31,
03/18 04Z,   1.10,   3.59,   3.32,  99.90,  -1.37,
03/18 05Z,   1.10,   2.23,   1.92,  99.90,  -1.41,
03/18 06Z,   0.80,   1.86,   1.55,  99.90,  -1.11,  (min)
03/18 07Z,   0.90,   2.64,   2.31,  99.90,  -1.23,
03/18 08Z,   0.90,   4.34,   3.97,  99.90,  -1.27,
03/18 09Z,   0.90,   6.53,   6.23,  99.90,  -1.20,
03/18 10Z,   1.00,   8.66,   8.40,  99.90,  -1.26,
03/18 11Z,   1.10,  10.18,   9.89,  99.90,  -1.39,
03/18 12Z,   0.80,  10.69,  10.42,  99.90,  -1.07,  (max)
03/18 13Z,   0.80,  10.05,   9.70,  99.90,  -1.15,
03/18 14Z,   0.80,   8.42,   8.06,  99.90,  -1.16,
03/18 15Z,   0.90,   6.17,   5.90,  99.90,  -1.17,
03/18 16Z,   0.90,   3.77,   3.51,  99.90,  -1.16,
03/18 17Z,   0.90,   1.73,   1.55,  99.90,  -1.08,
03/18 18Z,   0.90,   0.57,   0.34,  99.90,  -1.13,  (min)
03/18 19Z,   0.90,   0.56,   0.39,  99.90,  -1.07,
03/18 20Z,   1.00,   1.64,   1.50,  99.90,  -1.14,
03/18 21Z,   1.00,   3.43,   3.26,  99.90,  -1.17,
03/18 22Z,   1.00,   5.45,   5.27,  99.90,  -1.18,
03/18 23Z,   1.20,   7.21,   7.01,  99.90,  -1.40,
03/19 00Z,   1.10,   8.28,   8.12,  99.90,  -1.26,
03/19 01Z,   1.10,   8.41,   8.21,  99.90,  -1.30,  (max)
03/19 02Z,   1.10,   7.66,   7.55,  99.90,  -1.21,
03/19 03Z,   1.00,   6.31,   6.13,  99.90,  -1.18,
03/19 04Z,   0.80,   4.74,   4.62,  99.90,  -0.92,
03/19 05Z,   1.10,   3.38,   3.27,  99.90,  -1.21,
03/19 06Z,   1.20,   2.67,   2.54,  99.90,  -1.33,  (min)
03/19 07Z,   1.20,   2.92,   2.78,  99.90,  -1.34,
03/19 08Z,   1.20,   4.11,   3.96,  99.90,  -1.35,
03/19 09Z,   1.50,   5.91,   5.77,  99.90,  -1.64,
03/19 10Z,   1.60,   7.85,   7.80,  99.90,  -1.65,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
03/19 11Z,   1.70,   9.46,  99.90,   9.54,  -1.62,
03/19 12Z,   1.70,  10.33,  99.90,  10.43,  -1.60,  (max)
03/19 13Z,   1.70,  10.21,  99.90,  10.34,  -1.57,
03/19 14Z,   1.90,   9.10,  99.90,   9.46,  -1.55,
03/19 15Z,   1.60,   7.28,  99.90,   7.36,  -1.52,
03/19 16Z,   1.40,   5.12,  99.90,   5.02,  -1.50,
03/19 17Z,   1.70,   3.04,  99.90,   3.27,  -1.47,
03/19 18Z,   1.80,   1.50,  99.90,   1.85,  -1.44,
03/19 19Z,   1.90,   0.85,  99.90,   1.33,  -1.42,  (min)
03/19 20Z,   1.60,   1.23,  99.90,   1.44,  -1.39,
03/19 21Z,   1.80,   2.44,  99.90,   2.87,  -1.37,
03/19 22Z,   2.10,   4.08,  99.90,   4.83,  -1.34,
03/19 23Z,   2.00,   5.73,  99.90,   6.39,  -1.34,
03/20 00Z,   1.90,   7.02,  99.90,   7.58,  -1.34,
03/20 01Z,   1.90,   7.65,  99.90,   8.20,  -1.34,  (max)
03/20 02Z,   2.00,   7.50,  99.90,   8.15,  -1.34,
03/20 03Z,   2.00,   6.71,  99.90,   7.37,  -1.34,
03/20 04Z,   2.00,   5.59,  99.90,   6.25,  -1.34,
03/20 05Z,   2.00,   4.45,  99.90,   5.10,  -1.34,
03/20 06Z,   2.00,   3.63,  99.90,   4.29,  -1.34,
03/20 07Z,   2.00,   3.47,  99.90,   4.13,  -1.34,  (min)
03/20 08Z,   1.90,   4.13,  99.90,   4.68,  -1.34,
03/20 09Z,   1.90,   5.45,  99.90,   6.00,  -1.34,
03/20 10Z,   1.90,   7.07,  99.90,   7.63,  -1.34,
03/20 11Z,   1.80,   8.59,  99.90,   9.05,  -1.34,
03/20 12Z,   1.80,   9.65,  99.90,  10.11,  -1.34,
03/20 13Z,   1.80,   9.98,  99.90,  10.44,  -1.34,  (max)
03/20 14Z,   1.90,   9.45,  99.90,  10.01,  -1.34,
03/20 15Z,   1.80,   8.16,  99.90,   8.61,  -1.34,
03/20 16Z,   1.80,   6.39,  99.90,   6.85,  -1.34,
03/20 17Z,   1.80,   4.50,  99.90,   4.96,  -1.34,
03/20 18Z,   1.80,   2.82,  99.90,   3.28,  -1.34,
03/20 19Z,   1.50,   1.70,  99.90,   1.86,  -1.34,
03/20 20Z,   1.70,   1.39,  99.90,   1.75,  -1.34,  (min)
03/20 21Z,   1.90,   1.91,  99.90,   2.46,  -1.34,
03/20 22Z,   1.50,   3.00,  99.90,   3.15,  -1.34,
03/20 23Z,   1.40,   4.32,  99.90,   4.38,  -1.34,
03/21 00Z,   1.50,   5.58,  99.90,   5.73,  -1.34,
03/21 01Z,   1.70,   6.49,  99.90,   6.84,  -1.34,
03/21 02Z,   1.50,   6.86,  99.90,   7.01,  -1.34,  (max)
03/21 03Z,   1.40,   6.66,  99.90,   6.72,  -1.34,
03/21 04Z,   1.50,   6.05,  99.90,   6.21,  -1.34,
03/21 05Z,   1.50,   5.28,  99.90,   5.44,  -1.34,
03/21 06Z,   1.50,   4.58,  99.90,   4.74,  -1.34,
03/21 07Z,   1.50,   4.21,  99.90,   4.37,  -1.34,  (min)
03/21 08Z,   1.70,   4.39,  99.90,   4.75,  -1.34,
03/21 09Z,   1.70,   5.18,  99.90,   5.53,  -1.34,
03/21 10Z,   1.70,   6.38,  99.90,   6.73,  -1.34,
03/21 11Z,   1.60,   7.67,  99.90,   7.92,  -1.34,
03/21 12Z,   1.60,   8.75,  99.90,   9.00,  -1.34,
03/21 13Z,   1.50,   9.38,  99.90,   9.54,  -1.34,  (max)
03/21 14Z,   1.40,   9.38,  99.90,   9.44,  -1.34,
03/21 15Z,   1.40,   8.71,  99.90,   8.77,  -1.34,
03/21 16Z,   1.40,   7.48,  99.90,   7.53,  -1.34,
03/21 17Z,   1.40,   5.94,  99.90,   6.00,  -1.34,
03/21 18Z,   1.40,   4.36,  99.90,   4.42,  -1.34,
03/21 19Z,   1.40,   3.00,  99.90,   3.06,  -1.34,
03/21 20Z,   1.50,   2.12,  99.90,   2.28,  -1.34,
03/21 21Z,   1.60,   1.90,  99.90,   2.16,  -1.34,  (min)
03/21 22Z,   1.40,   2.31,  99.90,   2.37,  -1.34,
03/21 23Z,   1.60,   3.13,  99.90,   3.39,  -1.34,
03/22 00Z,   1.60,   4.11,  99.90,   4.37,  -1.34,
03/22 01Z,   1.50,   5.06,  99.90,   5.22,  -1.34,
03/22 02Z,   1.30,   5.79,  99.90,   5.75,  -1.34,
03/22 03Z,   1.30,   6.15,  99.90,   6.11,  -1.34,  (max)
03/22 04Z,   1.30,   6.12,  99.90,   6.08,  -1.34,
03/22 05Z,   1.20,   5.82,  99.90,   5.68,  -1.34,
03/22 06Z,   1.20,   5.41,  99.90,   5.26,  -1.34,
03/22 07Z,   1.20,   5.04,  99.90,   4.90,  -1.34,
03/22 08Z,   1.20,   4.90,  99.90,   4.76,  -1.34,  (min)
03/22 09Z,   1.40,   5.15,  99.90,   5.21,  -1.34,
03/22 10Z,   1.20,   5.82,  99.90,   5.68,  -1.34,
03/22 11Z,   1.10,   6.75,  99.90,   6.50,  -1.34,
03/22 12Z,   1.30,   7.68,  99.90,   7.64,  -1.34,
03/22 13Z,   1.30,   8.44,  99.90,   8.40,  -1.34,
03/22 14Z,   1.20,   8.87,  99.90,   8.72,  -1.34,  (max)
03/22 15Z,   1.10,   8.82,  99.90,   8.58,  -1.34,
03/22 16Z,   1.20,   8.24,  99.90,   8.10,  -1.34,
03/22 17Z,   1.10,   7.23,  99.90,   6.98,  -1.34,
03/22 18Z,   1.20,   5.95,  99.90,   5.81,  -1.34,
03/22 19Z,   1.20,   4.60,  99.90,   4.46,  -1.34,
03/22 20Z,   1.00,   3.37,  99.90,   3.02,  -1.34,
03/22 21Z,   1.20,   2.48,  99.90,   2.34,  -1.34,
03/22 22Z,   1.20,   2.12,  99.90,   1.98,  -1.34,  (min)
03/22 23Z,   1.20,   2.27,  99.90,   2.13,  -1.34,
03/23 00Z,   1.10,   2.80,  99.90,   2.56,  -1.34,
03/23 01Z,  99.90,   3.56,  99.90,  99.90,  -1.34,
03/23 02Z,  99.90,   4.42,  99.90,  99.90,  -1.34,
03/23 03Z,  99.90,   5.22,  99.90,  99.90,  -1.34,
03/23 04Z,  99.90,   5.78,  99.90,  99.90,  -1.34,
03/23 05Z,  99.90,   6.05,  99.90,  99.90,  -1.34,
03/23 06Z,  99.90,   6.05,  99.90,  99.90,  -1.34,